Welcome Team SRT!

The SRT 8 WK is very, very cool in all areas but the audio...is there going to be a Kicker option for it?

I won't be able to chat between 6-8, so I hope you will excuse me for being impatient. First off, whats up? I interned with you guys in '04, and it was awesome! (My name is Gregor, I don't know who is answering questions for SRT but maybe one of you remembers). I drive a Charger SRT-8, and was just wondering what mopar goodies are out for it yet. Is anything else in the works besides the exhaust? Not that the car is slow, but more power never hurt nobody... Plus, the sound just doesn't do it justice, so I hope the cat-back will fix that ;)

Ok, I have to go take a thermodynamics exam...

Any problems caused by installing an after market cat-back exhaust system or cold air intake? Also when can we expect some performance mods from Jeep for our SRT8's.

Many SRT8 owners are hearing whining under the hood? Are you guys aware of this issue? What is being done to address it? Thanks.
The SRT Track Experience is a great event!! However, I heard whining under several of the vehicles.

Any info on the Mopar Cold Air Kit and Cat Back Exhaust?

Also any way to make the rear Fog lights active? What parts are needed?

In the Owners Manual the mention the "Automatic Turn Signal" feature, how can this be activated?

jst2 06 GC SRT8 1710 Miles
Michigan Lic Plate "REDSRT8"

Thank for takin the time to do Q&A's with us. What is the resolve for the rotor grooving (scouring) and the 1st - 2nd Rev limiter issues?

Thanks again.

Should we be concerned with either the 5.7 or 6.1 running lean for those of us who have added MOPAR Cold Air Intake, LT headers and cat-back system? What about when the MOPAR heads come out?

Thanks (I truly appreciate your participation in these Q&A sessions)

Can the engineers please comment on the recent reports of cracking and turbine wheel damage to the S3R turbo kit for the SRT-4. Thanks.

I have an 06 SRT8 magnum I purchased March 06.
According to everyone else on the forums my dyno HP is low (319 RWHP)
My e.t and mph are slow (13.60 at 102 mph)
Most people are very low 13's or high 12's and average about 105mph
I'm not knew to the track and feel something is not right.
I read where a hemi was off a tooth on the cam timing and when corrected gained 30 HP.
Is there anything the local dealer can check?
I live in New Orleans and purchased the Magnum in Daytona Beach, Fl.
Thank You
Herb Jenssen

Hey guys,
Just wanted to say good job on the cars, and tell Gary Johnson,Matt and the rest of the guys there doin a great job on those comp coupes.Now, they just need to get the SCCA to let them get rid of those restrictor plates.

Is it forseeable that the 6.1 Hemi in any of the SRT applications will receive MDS ... in 2007 or beyond? Any engineering issues that prohibit its use?

Any word on a hitch for the GC SRT-8? I ordered with the hitch package, but there's no hitch available yet. I got two Sea Doo's that are screaming for a pull.

LOVE the truck!!
Mike

As with most car manufacturers, there is a budget for a production car. Since SRT folks need to stay within that budget to get the best bang-for-the-buck against competitors, you provide an "upgrade path" for most SRT vehicles, be it Mopar, or the aftermarket.

Given a budget of the following amounts, what would the SRT engineers modify/improve first, second, third, etc on the Cherokee SRT-8, the Charger RT-8, and if you have time, the older but popular Neon SRT-4? Could encompass suspension/handling, engine, or other... answer either individually or as a group... THANKS A BUNCH

Budget: $1,500 (in order of SRT engineers priority if they were given more budget, or for aftermarket upgrades by owners). The mods of course would be additive so the $3000 budget increase would include the ones below it...

1. Mod 1 - ????
2. Mod 2 --- ???
3. etc

Budget: $3000

1. Mod 1 -
2. Mod 2 -

Budget: $4500

1. Mod 1-
2. Mod 2 -

Budget: $6000

1. Mod 1 -
2. Mod 2 -

Question: when replacing the stock turbo on the SRT4, do you have to used the same manifold when installing? Or can remove the turbo from the new kit and used the older manifold?

Is there a technique on the turbo manifold clamp on what position to place the bolt?

I have a Jeep SRT8 and a Charger SRT8. I was just wondering if either one of these cars will beat the Ram SRT10 (time wise) in the Quarter?

Why does the SRT-8 Grand Cherokee have such a low tow rating?

I have a question:

The SRT-8 charger comes standard with 245-45-20 all season tires or the 245-45-20 fronts and 255-45-20 rear F-1's.

Why did you not offer the 255-45-20 tires for the front, since they have been proven by other members to fit in the front? The 245-45-20 tires seem to be too small.

Also, will MOPAR offer a more aggresive PCM or programmer for more horsepower for the SRT-8 charger?

thanks

Luis

Is there any benefit to changing to cooler running thermostats?

Is there any aux jacks developed for the REC/NAV 6 disk changer(2006 Charger). I heard someones working on one. Any new updates?

This is for a pal on the SRT-4 board that may not chime in... He (for some reason) ported his exhaust manifold and is now complaining about loss of boost pressure on his SRT-4. Do you suggest or think it wise to port the exhaust manifold and what are the plus's and minuses of doing so? Most folks port the intake manifold. Thx.

We are not going to talk about future items. 07 and beyond is the future. Sorry!

The SRT 8 WK is very, very cool in all areas but the audio...is there going to be a Kicker option for it?

Sorry no Kicker option for Grand Cherokee SRT. That's enough JG.

Can you discuss the Whine issue? Are you aware of it?

I have a Jeep SRT8 and a Charger SRT8. I was just wondering if either one of these cars will beat the Ram SRT10 (time wise) in the Quarter?

All three will be very close. It will be a driver's race.

If all three were driven to their full potential?

We are on now. Thanks for tuning in!

I've got an '00 Viper GTS with the Arrow rebuild, Belanger headers, Mopar cat back, no cats (using a SIM box), smooth tubes and K&Ns. A recent dyno pull netted 432 RWHP, but the A/F plot showed that the car is running rich from 3300 RPM and up. Is there any way to adjust the A/F ratio short of installing a VEC2?

I get the sense that we're all waiting in vain. :mad: :(

However, in case we're not, any plans on offering performance upgrades for the JGC SRT8 like those available for the SRT4; heads, cams, etc.?

We're all hungry for more power and we have pockets full of cash. I'd like to give it to Jeep, but I can't wait forever.

:D

Thanks for coming. Reading last months visit, it looked like there might be a fix in the works for our concerns about rotor grooving ont he various 8's. Any update?

Thanks,

Don

Any Comment on the Mopar Cold Air Intake and Exhaust Kit for the GC SRT-8?

jst2

I have a question:

The SRT-8 charger comes standard with 245-45-20 all season tires or the 245-45-20 fronts and 255-45-20 rear F-1's.

Why did you not offer the 255-45-20 tires for the front, since they have been proven by other members to fit in the front? The 245-45-20 tires seem to be too small.

Also, will MOPAR offer a more aggresive PCM or programmer for more horsepower for the SRT-8 charger?

thanks

Luis


255's do not have clearance in the front for the tire envelope in all possible ride and suspension compliance situations.

A programmer is unlikely, as having customers modifying their own calibrations causes major warranty fraud issues. And we know when you do it! In fact, we already knew you were thinking about it!!

I have an 06 SRT8 magnum I purchased March 06.
According to everyone else on the forums my dyno HP is low (319 RWHP)
My e.t and mph are slow (13.60 at 102 mph)
Most people are very low 13's or high 12's and average about 105mph
I'm not knew to the track and feel something is not right.
I read where a hemi was off a tooth on the cam timing and when corrected gained 30 HP.
Is there anything the local dealer can check?
I live in New Orleans and purchased the Magnum in Daytona Beach, Fl.
Thank You
Herb Jenssen
We are not aware of any issues, and in fact the electronics does know if the engine timing is off one tooth. I might have the exhaust system checked for plugging.

Hey guys, thanks for comming. Just wanted to drop in and say THANKS FOR MAKING ALL OF THE SRT CARS.

Are any of you guys going to be at the Srt track day in Beaver Run PA on the weekend of the 21,22,23?

Dude, this is for any SRT and not specific to GC. We switch forums for a reason. If not, then it should be on the SRTFORUMS>COM main forum.

Why does the SRT-8 Grand Cherokee have such a low tow rating?

The trail tow rating is based on a number of factors, which include:

- Cooling in Death Valley at WOT
- Driveline durablity
- Parking gear strength
- Axle GAWR ratings

what is the effect of a cooler thermostat, good, bad or indifferent?

The fix is just around the corner.

Would you recomend the first oil change before the 3000mi, or keep it in till then?

The fix is just around the corner.
What fix are you talking about?

We are on now. Thanks for tuning in!

We are having major login issues right now!!

Please be patient with us. We are all logging in under the same username and have been locked out.

We mostly have Cherokee specialists here tonight, no one that knows the answer to that. Sorry about that.

As a follow up on my slow Magnum.
You said check the exhaust for plugging.
Is there any flashes or updates to the PCU?

If all three were driven to their full potential?


Yes. We are not magazine racers, here. Take it to the strip and see what she runs!!

255's do not have clearance in the front for the tire envelope in all possible ride and suspension compliance situations.

A programmer is unlikely, as having customers modifying their own calibrations causes major warranty fraud issues. And we know when you do it! In fact, we already knew you were thinking about it!!


thanks...but I was not thinking of custom programming my own please dont confuse me with someone else......

my last two questions are:

what are you planning on doing with the grooving issues on the rotors? I have 5K miles and the rotors look like the Himalayan mountains.....

I also have the 1-2 shift hesitation, what is the conclusion on this? I will be at the daytona srttrack experience and I will be more than willing to let one of the instructors see how it hesitstes on my car......


BTW.....love your products, keep up the good work and all we need is some minor refinement....:)

I have thought about removing the resonator and putting electric cut-offs in its place. Would I free up enough horsepower to justify the $600-$1000 price tag?

Would you recomend the first oil change before the 3000mi, or keep it in till then?
Well, it doesn't hurt, but there is really no reason to change it before 3000 miles.

I won't be able to chat between 6-8, so I hope you will excuse me for being impatient. First off, whats up? I interned with you guys in '04, and it was awesome! (My name is Gregor, I don't know who is answering questions for SRT but maybe one of you remembers). I drive a Charger SRT-8, and was just wondering what mopar goodies are out for it yet. Is anything else in the works besides the exhaust? Not that the car is slow, but more power never hurt nobody... Plus, the sound just doesn't do it justice, so I hope the cat-back will fix that ;)

Ok, I have to go take a thermodynamics exam...

The suspension system is out there. Cold air should be available soon. Look for the exhaust system to follow shortly.

Thanks...could one of them PM me for an answer? We are using a third stock turbo and seem to see some compressor wheel scraping when not heated.

Maybe a problem.

Yes. We are not magazine racers, here. Take it to the strip and see what she runs!!
My CSRT8 beats my wifes SRT10....Not by much though.... maybe a fender.

Why does the SRT-8 Grand Cherokee have such a low tow rating?
The tow capability is limited by the choice of the Mercedes A580 five speed automatic transmission. The A580 gave us our best performance... shift times and gear ratios.

Please limit comments to the Q&A - All others will be deleted.
Thank you

You mentioned a fix coming. What were you speaking about?
Thanks!

The SRT 8 WK is very, very cool in all areas but the audio...is there going to be a Kicker option for it?
We are always looking at audio upgrades but at this time we don't have anything that we can comment on:mad:

Thank for takin the time to do Q&A's with us. What is the resolve for the rotor grooving (scouring) and the 1st - 2nd Rev limiter issues?

Thanks again.

Is there any benefit to changing to cooler running thermostats?
The engine is designed to run on the production thermostat which will produce a gauge reading near 200 'F on the gauge. Lowering the temp has not been developed . At lower temps, calibration will add fuel which does not always result added power.

Any plans on offering performance upgrades for the JGC SRT8 like those available for the SRT4; heads, cams, etc.?

We're all hungry for more power and we have pockets full of cash. I'd like to give it to Jeep, but I can't wait forever.

I know you said air intake and exhaust, but what about MORE? :D :D

I LOVE POWER!

You mentioned a fix coming. What were you speaking about?
Thanks!
Sorry clicked the wrong button, long day....
That was the reply to the grooved rotor question.

Any problems caused by installing an after market cat-back exhaust system or cold air intake? Also when can we expect some performance mods from Jeep for our SRT8's.

Since we do the engineering work on these parts for Mopar of course we'd recommend you wait just a little bit longer for our stuff.

There should some more goodies following shortly

The tow capability is limited by the choice of the Mercedes A580 five speed automatic transmission. The A580 gave us our best performance... shift times and gear ratios.

Are there any changes to the A580 used in the SRT's compared to the A580 used in non SRT's?

Sorry clicked the wrong button, long day....
That was the reply to the grooved rotor question.
Have you had reports of the whining coming from the engine compartment? Several of us have this issue...
Some are saying it is the oil squirters? Who knows...only you guys..

what is the effect of a cooler thermostat, good, bad or indifferent?
Generally better but we do not know.

Sorry clicked the wrong button, long day....
That was the reply to the grooved rotor question.
That is great news.... When can we expect the fix to introduced?

Thank you!

not a big question that might have got over looked.

Any of you guys going to be at the Beaver Run Srt track day weekend of the 21,22,23?

Would like to meet some of you guys in person.

thanks...but I was not thinking of custom programming my own please dont confuse me with someone else......

my last two questions are:

what are you planning on doing with the grooving issues on the rotors? I have 5K miles and the rotors look like the Himalayan mountains.....

I also have the 1-2 shift hesitation, what is the conclusion on this? I will be at the daytona srttrack experience and I will be more than willing to let one of the instructors see how it hesitstes on my car......


BTW.....love your products, keep up the good work and all we need is some minor refinement....:)

The grooving solution is under development and should be available before summer same story on the shift calibration......

That was the reply to the grooved rotor question.

if we pass the 1 year 12k mile warranty on the brakes before the TSB comes out will we still be covered under warranty to fix them?

Any concerns of corrosion or other issues with the new summer gasoline formulation using Ethanol in replacement of MTBE? Any performance advantage to 93 versus 91 octane California fuel? Question relate to the 6.1 Hemi.

As a follow up on my slow Magnum.
You said check the exhaust for plugging.
Is there any flashes or updates to the PCU?
There are no cal changes for the WK.

Is Corsa doing all SRT/MOPAR ehxaust now,or is borlja still going to be making them for the SRT4?

We mostly have Cherokee specialists here tonight, no one that knows the answer to that. Sorry about that.

Is this in reference to the Viper question?

A lot of Grand Cherokee SRT8 owners are having a problem with a vibration/growling sound under moderate to heavy acceleration. A TSB was issued for transfer case cluch noise, the "fix" being an updated file for the FDCM, and that helped a little but the noise is still there and is very annoying. Are there any other solutions in the works, and have there been issues with any other components that have been causing rattle problems, besides the transmission mounting bolt? Some Jeep mechanics are saying some of the noise may be coming from defective mufflers.

Can the engineers please comment on the recent reports of cracking and turbine wheel damage to the S3R turbo kit for the SRT-4. Thanks.

ps
Also, it has been mentioned, but not verified, that the new Caliber uses the same turbo as the one used by the S3R kit for the SRT-4.
Is this correct?

If so, has MoPar observed any cracking in the turbine scroll area on those particular turbo's?

Last, what does Mopar think of the idea of welding the cracks in the manifold scroll area?
Thanks.

I have thought about removing the resonator and putting electric cut-offs in its place. Would I free up enough horsepower to justify the $600-$1000 price tag?

Without ditching the cats, you're probably talking less than a 5 hp increase on the GC. Your call if that is worth the money. Ditching the cats has many other issues. You will get more from the upcomming Mopar cold air intake on the GC

In relation to a previous question asked tonight relating to Programmers, you responded that a Programmer was unlikely.

I am more interested in the question you didn't respond to, will there be more aggressive PCM options in 2006 for 2005 and 2006 SRT-8's through Mopar and when can we order?

What's a WK?

not a big question that might have got over looked.

Any of you guys going to be at the Beaver Run Srt track day weekend of the 21,22,23?

Would like to meet some of you guys in person.
Sure, we will be there:cool:
If you want to meet somebody of us, just watch out for the best looking guys on the track:D

Are you the same engineers whom designed the SRT-4 Caliper?

Are there any changes to the A580 used in the SRT's compared to the A580 used in non SRT's?


Calibration and upgrading the output flange from 3 to 4 bolts.

Is Corsa doing all SRT/MOPAR ehxaust now,or is borlja still going to be making them for the SRT4?

We usually pick the best system amoung our various suppliers. The SRT4 will continue to use the Borla system.:D

Are you the same engineers whom designed the SRT-4 Caliper?
:eek: Yeeeeeeeeeeeeeeeees man!!!!!!!!!!!!!!!!!!!1:D :) :D

Who makes the CAI kit and the LT headers for Mopar?

In relation to a previous question asked tonight relating to Programmers, you responded that a Programmer was unlikely.

I am more interested in the question you didn't respond to, will there be more aggressive PCM options in 2006 for 2005 and 2006 SRT-8's through Mopar and when can we order?


Nope. We know you always want more, but in this case, there is little to give.

Any info on the Mopar Cold Air Kit and Cat Back Exhaust?

Also any way to make the rear Fog lights active? What parts are needed?

In the Owners Manual the mention the "Automatic Turn Signal" feature, how can this be activated?

jst2 06 GC SRT8 1710 Miles
Michigan Lic Plate "REDSRT8"

Any response to the above?

jst2

Is there any plans to produce a new vehicle at Conner Ave plant?

Are you the same engineers whom designed the SRT-4 Caliper?

Mostly, Yes. The SRT Group is responsible for all SRT Products, From the 2003 Viper right through to the 2007 Caliber (as opposed to Caliper) SRT4. Before '03 we were still the same group of guys working together on high performance, but we had various different organizational names.

--------------------------------------------------------------------------------

Any plans on offering performance upgrades for the JGC SRT8 other than just the CAI and exhaust?

I LOVE POWER...and cheese! :D

Is there a way to activate the rear fog lights on the SRT-8 Grand Cherokee?
Will adding a Euro multifunction switch and a fog lamp relay activate them?
Also the owners manual lists a lane change three blink feature on WK's does this need to be activated by a StarScan. If so where in the menus??

What's a WK?

WK is our internal designation for Grand Cherokee. The old one was, surprise....WJ!

What is the best cruising speed for the GC in terms of gas milage?

Who makes the CAI kit and the LT headers for Mopar?

:) Mopar does!! Kidding aside, we use a lot of different suppliers for different carlines but it's all good stuff:D

If you call a Mopar store today, they canlook up the Mopar Heads, they have a part number and a price, they are just not available for shipment yet. This is public knowledge. When will these options be available for order placing and shipment? TIA!

any word on the official Jeep SRT 8 hitch

if we pass the 1 year 12k mile warranty on the brakes before the TSB comes out will we still be covered under warranty to fix them?

IF you make the new challenger, will the LX vehicles change over to the LY?

Is there any plans to produce a new vehicle at Conner Ave plant?
:) Ohhhh sure, we produce new vehicles there every day.........:D

Any response to the above?

jst2

It is EXTREMELY difficult to activate the Rear Fog Lamps on the NAFTA Grand Cherokee SRT8's. This would require a European Stering Column and Switch Stalk. Very Expensive hardware, and not available in US Dealerships. This is possible, but difficult.

The Auto Turn Signal reference in the Owner's Manual is in error.

Any info on the Mopar Cold Air Kit and Cat Back Exhaust?

Also any way to make the rear Fog lights active? What parts are needed?

In the Owners Manual the mention the "Automatic Turn Signal" feature, how can this be activated?

jst2 06 GC SRT8 1710 Miles
Michigan Lic Plate "REDSRT8"

Sorry, the automatic turn signals are not available on the 2006 WK SRT8.

Thanks for being here SRT guru's. Hope I havent skipped over it....when do you expect Calibre SRT's to be on Canadian Dealer lots?

any word on the official Jeep SRT 8 hitch

The WK SRT8 Trailer Hitch package is projected to be at dealerships in June of this year. It will consist of the Hitch Receiver and a custom Ball Mount. Wiring for Trailer Tow already exists on the vehicle

Should we be concerned with either the 5.7 or 6.1 running lean for those of us who have added MOPAR Cold Air Intake, LT headers and cat-back system? What about when the MOPAR heads come out?

Thanks (I truly appreciate your participation in these Q&A sessions)


No, the parts have been tested and we are working fine on the vehicle. Ask for the heads.....stay tuned.!...!....!....;)

Any plans on offering performance upgrades for the JGC SRT8 other than just the CAI and exhaust? If so, when and what?

IF you make the new challenger, will the LX vehicles change over to the LY?
Challenger???? Was soll dass sein?????:confused:

A lot of Grand Cherokee SRT8 owners are having a problem with a vibration/growling sound under moderate to heavy acceleration. A TSB was issued for transfer case cluch noise, the "fix" being an updated file for the FDCM, and that helped a little but the noise is still there and is very annoying. Are there any other solutions in the works, and have there been issues with any other components that have been causing rattle problems, besides the transmission mounting bolt? Some Jeep mechanics are saying some of the noise may be coming from defective mufflers.

To date this issue has been resolved by either the transmission bolt TSB or the transfer case FDCM reflash TSB. Could be the bolt issue if you've had the t-case reflash done.....

Should I be concerned my temperature went up to 217 from 202 in a matter of minutes while stuck on the highway in a snow storm on my way to California?

Rambit

Are you the same engineers whom designed the SRT-4 Caliper?

We did the SRT-4 brake Calipers and are doing the Caliber, too.

if we pass the 1 year 12k mile warranty on the brakes before the TSB comes out will we still be covered under warranty to fix them?

We're still working out the details of the TSB, and specifics regarding mileage cut-off will be published soon.

Seeing conflicting stories... does adding Mopar CAI and Mopar LT headers affect the warrenty of our cars?

My dealer told me that Headers would be included in even the extended warrenty, but from the foot note on Mopar Performance Catalog, Mopar Performance Parts have no warrenty.

I want to mod, but I dont want to have warrenty issues. (double edge sword :D )

Would it be a good idea to run it past our servie managers and have them note it even if they say it is "only cosmetic"?We're still working out the details of the TSB, and specifics regarding mileage cut-off will be published soon.

To date this issue has been resolved by either the transmission bolt TSB or the transfer case FDCM reflash TSB. Could be the bolt issue if you've had the t-case reflash done.....

Sorry, but I've had both TSB's done, the problem still exists. :D

With that being said, I couldn't care less abot some rattle. I only care about wheter there are any plans on offering performance upgrades for the JGC SRT8 other than just the CAI and exhaust? If so, when and what?

Any plans on changing out the LSD on the Viper? Since it has a tendency of spinning the right wheel before engaging the left.

Should I be concerned my temperature went up to 217 from 202 in a matter of minutes while stuck on the highway in a snow storm on my way to California?

Rambit

A coolant temp of 217 isn't cause for concern. The High Speed Fan doesn't kick in until 215 degrees, and it's understandable that you would climb to 217 while the fan was coming on.

We've punished these cars in every high temperature, hard (and not so hard) running condition we could think of, and never broke a sweat. The Cooling System on these cars is pretty much bullet proof!

Seeing conflicting stories... does adding Mopar CAI and Mopar LT headers affect the warrenty of our cars?

My dealer told me that Headers would be included in even the extended warrenty, but from the foot note on Mopar Performance Catalog, Mopar Performance Parts have no warrenty.

I want to mod, but I dont want to have warrenty issues. (double edge sword :D )
Believe the book!!!!!!!!

Is there a remote start option that I can add that will use the existing jeep remote?

What is the best cruising speed for the GC in terms of gas milage?


As slow as you can stand to go in 5th gear with the torque converter locked up. (35 mph or so??)

By the way, my boss just asked, "Why the hell did you buy the GC SRT8 if you are concerned about fuel economy?"

This is for a pal on the SRT-4 board that may not chime in... He (for some reason) ported his exhaust manifold and is now complaining about loss of boost pressure on his SRT-4. Do you suggest or think it wise to port the exhaust manifold and what are the plus's and minuses of doing so? Most folks port the intake manifold. Thx.
Generally, the best flow path produces the best response but will not lower the boost pressure. I would have him check the hose routing as , if they are mixed, will affect the control logic of the turbo.

A coolant temp of 217 isn't cause for concern. The High Speed Fan doesn't kick in until 215 degrees, and it's understandable that you would climb to 217 while the fan was coming on.

We've punished these cars in every high temperature, hard (and not so hard) running condition we could think of, and never broke a sweat. The Cooling System on these cars is pretty much bullet proof!

How about breaking the 230 degree mark... This happened to me yesterday. Outside temp was 72*, I was in steady flow traffic, and actually driving within the posted speed limits.

Is this temp a concern?

[QUOTE=Rambit]Should I be concerned my temperature went up to 217 from 202 in a matter of minutes while stuck on the highway in a snow storm on my way to California?

No with a 205 thermostat, 217 is no big deal. That's probably when your fans kicked on. You guys are just too trained on 195 thermostats...

Is there a remote start option that I can add that will use the existing jeep remote?
We are not sure. Check with your dealer through Jeep Accessories.

Any plans on changing out the LSD on the Viper? Since it has a tendency of spinning the right wheel before engaging the left.

How about a Quaife unit instead of the diff that comes stock?

A coolant temp of 217 isn't cause for concern. The High Speed Fan doesn't kick in until 215 degrees, and it's understandable that you would climb to 217 while the fan was coming on.

We've punished these cars in every high temperature, hard (and not so hard) running condition we could think of, and never broke a sweat. The Cooling System on these cars is pretty much bullet proof!


So the EVIC dispayed temps of 238+ temp back in Sept. is nothing to be concerned about?

it was only 95 degrees then... hate to see the EVIC when it hits 120 in a couple months.

Now I know that you test cars in every situation, from blazing hot to freezing cold. But just like Up north where people block the grill off with cardboard when it is -60 to allow the engine to warm up quicker, would it not be benificial for those of us in the desert to go to a lower t-stat? Seeing as how cars shipped to Alaska get the same t-state as those shipped to Phoenix...

Is there a way to plug my ipod into the audio system, or an adaptor that is available so I don't have to use an fm modulator?

Follow up to slow Magnum. If it's not a plugged exhaust what do you suggest I do?
I purchased this SRT8 for performance, not to watch others with the same vehicle enjoy their performance.
What is your opinion on 319RWHP? That was on a mustang dyno.
Thanks
Herb

Why put such a restrictive exhaust system on the GCSRT8?

Are any performance upgrades for the JGC SRT8 other than just the CAI and exhaust going to be available? If so, when and what?

Is there a remote start option that I can add that will use the existing jeep remote?

Mopar has a remote start but it does require an a secondary fab. You won't be able to use your existing fab.

How about breaking the 230 degree mark... This happened to me yesterday. Outside temp was 72*, I was in steady flow traffic, and actually driving within the posted speed limits.

Is this temp a concern?


Are you sure you weren't looking at the oil temp?

hi, just curious

1)which 3d design program do you guys use, solidworks, catia or autocad.
2)did amg have any input in designing any srt cars? if so which ones?
3) what kind of undercoating/rustproofing does the current neon srt-4 come with from the factory?

thanks

If you call a Mopar store today, they canlook up the Mopar Heads, they have a part number and a price, they are just not available for shipment yet. This is public knowledge. When will these options be available for order placing and shipment? TIA!
Comments???

Are you sure you weren't looking at the oil temp?
Possitive.... I wasn't even in the digital display. This was my temp gauge reading...

Should I be concerned my temperature went up to 217 from 202 in a matter of minutes while stuck on the highway in a snow storm on my way to California?

Rambit
While 217 is well within the operating temperature of the engine, it will normally run around 200, especially in the winter. If this occured at idle, the fans will turn on by 215, so it is possible.
If you are concerned, have the dealer assure the cooling system is full and have him assure there are no leaks.

I'm not sure if this is too far in the future to have you answer.
Reading artical: {Hot SRT diesel models are possible in future for Chrysler and Dodge according to Michael Accavitti, Director of SRT Product Planning and Marketing.
A recent visit to Europe convinced him that there would be no problem with any of the above. He said: “The torque of the Grand Cherokee 3.0 V6 CRD is unbelievable, it gives the impression of so much power. I drove a Mercedes E320 CDi with the 3-litre diesel V6 home and it was one of those cars where you deliberately catch the red lights so you can accelerate away!”}

My question is why consider the MB 3.0Lcrd for a SRT when there is the MB 4.0L crd from the ML class that is very similar to the grand cherokee. 310 hp (SAE) and 538 lb-ft (730 Nm) of torque 4 liter OM629 V8

I have heard less than great reviews of Sirius reception in my area. And my personal and home auido are all XM Radio and I am also not a fan of the factory Chrysler Sirius Atenna. But I really want the NAV system. Is it possible to Factory order the SRT Option Group III (In my Case a Magnum SRT8) and delete the Sirius option.

In Canada you can get a Magnum SRT8 with NAV and no Siruis or on any other trim level of the Magnum.

thanks guys

Follow up to slow Magnum. If it's not a plugged exhaust what do you suggest I do?
I purchased this SRT8 for performance, not to watch others with the same vehicle enjoy their performance.
What is your opinion on 319RWHP? That was on a mustang dyno.
Thanks
Herb


You can't quote absolute wheel dyno numbers accurately. Each dyno is different. Different days make different numbers, too. Your quarter mile speed is an indicator of power. Altitude matters at the strip. Also, how many miles do you have on her. They get faster with break-in.

Why are so many newer cars designed to run so hot?

How much HP and TQ do you think the JEEP SRT-8 drivetrain could handle? I'm just thinking of future mods :D

Why put such a restrictive exhaust system on the GCSRT8?
From a performance standpoint it is not restrictive at all..........By changing your exhaust system you will only be changing your sound. And the existing sound is :D ..if you ask me......

Follow up to slow Magnum. If it's not a plugged exhaust what do you suggest I do?
I purchased this SRT8 for performance, not to watch others with the same vehicle enjoy their performance.
What is your opinion on 319RWHP? That was on a mustang dyno.
Thanks
Herb
What is a mustang dyno?

While 217 is well within the operating temperature of the engine, it will normally run around 200, especially in the winter. If this occured at idle, the fans will turn on by 215, so it is possible.
If you are concerned, have the dealer assure the cooling system is full and have him assure there are no leaks.
I was at idle, stuck behind 10,000 trucks so I'll assume everything's good. 5000 miles in one week and no problems whatsoever! Lots of 'spirited driving" too.

Rambit

Is there a way to plug my ipod into the audio system, or an adaptor that is available so I don't have to use an fm modulator?

Not a bad idea.....stay tuned ...fellow ipoder

It is great you all come here to answer some questions! Thanks for making some really amazing cars for the money.... we all love our beasts!

This has been asked about 4 or 5 times already here by different people. I am another who NEEDS a definitive answer on this.

1) The SRT8 1-2 shift problem. More than a mere hesitation, a power robbing 1/2 second throttle cutout (even if you do NOT hit the rev limiter) is a serious performance issue. TSB does not work. TCM replacement not only does not work, but robbed my car of some power and performance.

2) The Brembo rotor scoring and squealing issue was said to have been resolved and that we would have the fix soon. This was 2 months ago... is it coming?

3) I have been in contact a lot with Dan Bodene, your PR person and he has tried and tried to get ANYONE at SRT to contact me about my issues. Now he has been told to tell me that due to corporate policy a customer cannot have any direct contact with SRT Engineers. I find this appaling as I spent $45,000 on a car that is all but a lemon. Can't call it a lemon because a LARGE amount of SRT8 owners are going through the exact same issues! I am planning on buying the GCSRT8 next month in addition to my Mag SRT8, and am on my local dealer's "unofficial pre list" for the first Challenger. I'd like to know if my current car will function correctly before I spend another $80,000 or so on more SRT products.

Hello,

I am the proud owner of a new GC SRT8. I doubt if I will mod it until I have at least 1,000 miles. What are the first modifications recommended? Anything that will improve performance without losing fuel economy?

Thanks,
John

When do you expect the Calibre SRT's will be on the Canadian Dealer lots?

From a performance standpoint it is not restrictive at all..........By changing your exhaust system you will only be changing your sound. And the existing sound is :D ..if you ask me......

then why do those here on the forum get more HP when they change out the mufflers?

I'm not sure if this is too far in the future to have you answer.
Reading artical: {Hot SRT diesel models are possible in future for Chrysler and Dodge according to Michael Accavitti, Director of SRT Product Planning and Marketing.
A recent visit to Europe convinced him that there would be no problem with any of the above. He said: “The torque of the Grand Cherokee 3.0 V6 CRD is unbelievable, it gives the impression of so much power. I drove a Mercedes E320 CDi with the 3-litre diesel V6 home and it was one of those cars where you deliberately catch the red lights so you can accelerate away!”}

My question is why consider the MB 3.0Lcrd for a SRT when there is the MB 4.0L crd from the ML class that is very similar to the grand cherokee. 310 hp (SAE) and 538 lb-ft (730 Nm) of torque 4 liter OM629 V8
There are definitely some very attractive diesel opportunities out there. And we are always looking for new stuff. Buuuuuuuuut, we can't comment on future products.

Will you ever do a SRT Forum discussion for the Viper?

Here's one.

Why do these cars run so dang slow when it gets hot outside?

Anything above 70 degrees and this thing turns into a dog. I have had other performance cars that did not suffer from this and I raced a friend in a stock GM vehicle at 60 degrees and beat him. We did the same thing at 90 degrees and I lost. We did make sure all of the conditions were the same with the cars both times.

Why are so many newer cars designed to run so hot?
Emissions and fuel economy, in fact, oil temp runs the best at 230'f oil.

Will you ever do a SRT Forum discussion for the Viper?
Yes we will do a Viper discussion, but nothing scheduled at this time.

When do you expect the Calibre SRT's will be on the Canadian Dealer lots?

We can't spill the beans on availability for the new SRT4, but I can tell you that the Canadian vehicles will arrive at dealershipsalmost simultaneously with the USA SRT4's

Any problems caused by installing an after market cat-back exhaust system or cold air intake? Also when can we expect some performance mods from Jeep for our SRT8's.

Nope. We do the engineering work for the Mopar stuff right here

Yes we will do a Viper discussion, but nothing scheduled at this time.

Great. Would it be in the SRT forum or the Viper Club of America forum (where most viper owners are)?

Will you ever do a SRT Forum discussion for the Viper?

Good point. These chats are awesome, but the Viper is the KING of all Mopars and there hasn't been a single chat for us Viper owners yet. I've mentioned it to a couple of guys from SRT in the past, but still nothing...apparently, we'll have to wait until VOI.9!

Just a quick comment-glad to see you guys getting some "face time" with the customers....

Best regards,

Bob Sheaves

"By the way, my boss just asked, "Why the hell did you buy the GC SRT8 if you are concerned about fuel economy?"

I agree, after only 1700 miles my GC SRT-8 is getting 14.0 mpg, my 1998 ZJ Ltd 5.9L only gets 15 mpg and this has twice the power !

jst2
06 GC SRT-8
Mich Lic "REDSRT8"
98 ZJ Ltd 5.9l 172K miles, Engine and Trans never opened up !!!

generally how many degrees of timing advance does the HOM enable for stage2 and 3 on the srt-4?

how many 2003 and 2004 srt-4's were made for canada?

how many engineers work for srt? thanks

It is great you all come here to answer some questions! Thanks for making some really amazing cars for the money.... we all love our beasts!

This has been asked about 4 or 5 times already here by different people. I am another who NEEDS a definitive answer on this.

1) The SRT8 1-2 shift problem. More than a mere hesitation, a power robbing 1/2 second throttle cutout (even if you do NOT hit the rev limiter) is a serious performance issue. TSB does not work. TCM replacement not only does not work, but robbed my car of some power and performance.

2) The Brembo rotor scoring and squealing issue was said to have been resolved and that we would have the fix soon. This was 2 months ago... is it coming?

3) I have been in contact a lot with Dan Bodene, your PR person and he has tried and tried to get ANYONE at SRT to contact me about my issues. Now he has been told to tell me that due to corporate policy a customer cannot have any direct contact with SRT Engineers. I find this appaling as I spent $45,000 on a car that is all but a lemon. Can't call it a lemon because a LARGE amount of SRT8 owners are going through the exact same issues! I am planning on buying the GCSRT8 next month in addition to my Mag SRT8, and am on my local dealer's "unofficial pre list" for the first Challenger. I'd like to know if my current car will function correctly before I spend another $80,000 or so on more SRT products.



The brake noise question has been answered already on this forum. A fix will be in before summer. Same with shift hesitation. We understand both issues, but implementing fixes takes time because of engineering validation, producing parts, and executing paperwork.

There is a torque interrupt on shifts for transmission durability, also. The car will be faster without it, but unfortunately it is necessary.

We talk to Bodene all the time!:)

Why can't you guys answer my question regarding performance upgrades below?


Are any performance upgrades for the JGC SRT8 other than just the CAI and exhaust going to be available? If so, when and what?

You've already admitted there are going to be cold air intakes and exhaust systems available in the FUTURE.


JUST TELL ME IF IT'S OFF LIMITS, DON'T JUST KEEP IGNORING IT.

Answer me and I'll leave you alone. :D

MY assumption is since the JGC uses the same motor has the other srt-8 there are no other plans at this time. But they did touch on maybe new heads.

(just from what i read here)

Good point. These chats are awesome, but the Viper is the KING of all Mopars and there hasn't been a single chat for us Viper owners yet. I've mentioned it to a couple of guys from SRT in the past, but still nothing...apparently, we'll have to wait until VOI.9!

But please not all of us can afford the 4K to go to VOI9

Just a quick comment-glad to see you guys getting some "face time" with the customers....

Best regards,

Bob Sheaves
The pleasure is on our side. You are very welcome:D

Why can't you guys answer my question regarding performance upgrades below?


Are any performance upgrades for the JGC SRT8 other than just the CAI and exhaust going to be available? If so, when and what?

You've already admitted there are going to be cold air intakes and exhaust systems available in the FUTURE.


JUST TELL ME IF IT'S OFF LIMITS, DON'T JUST KEEP IGNORING IT.

Answer me and I'll leave you alone. :D

No other performance upgrades for the GC SRT8 are in the works right now.

I have a GC SRT8 on order, due to be here in a week or so. Will some of these problems that others are having be fixed since theirs are a few months older? ie.... the vibration, and brake problem.

There's a lot of talk out there about adding mods such as intake and exhaust and the cars "learning" the new mods and making adjustments for them, negating any additional power that may have been gained. (did I say that right?). Is it worth it to do these types of mods?

Can the engineers please comment on the recent reports of cracking and turbine wheel damage to the S3R turbo kit for the SRT-4. Thanks.

We've heard of a couple - not sure whether there was damage involved. If you have an issue, contact the Tech Line at 1-888-528-HEMI.

Possitive.... I wasn't even in the digital display. This was my temp gauge reading...
bump....:cool:

then why do those here on the forum get more HP when they change out the mufflers?


Butt dynos don't count.

When and engine sounds better, it feels faster. Just like good smelling food tastes better.

Question: when replacing the stock turbo on the SRT4, do you have to used the same manifold when installing? Or can remove the turbo from the new kit and used the older manifold?

Is there a technique on the turbo manifold clamp on what position to place the bolt?

Your Stage 3 kit comes with the the manifold

As with any great Performance Car DC builds...and you guys design...What is your thoughts on driving these beauties in adverse winter driving conditions....in regards to damage caused by salt. I hate driving my beauties in winter, but I cannot keep puting cars away for the winter months!

generally how many degrees of timing advance does the HOM enable for stage2 and 3 on the srt-4?

how many 2003 and 2004 srt-4's were made for canada?

how many engineers work for srt? thanks
The only answer I have for you is about 110......you guess the question.:eek:

But please not all of us can afford the 4K to go to VOI9

Lucky for me I live in Vegas so VOI.9 will be a little cheaper for me to attend.

hi, just curious

1)which 3d design program do you guys use, solidworks, catia or autocad.
2)did amg have any input in designing any srt cars? if so which ones?
3) what kind of undercoating/rustproofing does the current neon srt-4 come with from the factory?

thanks
We do most of the design work in Catiabut do also work in specialized software for some analysis. We do discuss supplier and development issue with our Buds at AMG. Sorry, we do not know the brand of undercoating .

....any guess on how much HP the transfer case on the JEEP SRT-8 can handle? 600 RWHP? Hopefully :D

MY assumption is since the JGC uses the same motor has the other srt-8 there are no other plans at this time. But they did touch on maybe new heads.

(just from what i read here)

You could always pull the little 6.1L and drop in the raging 392 Mopar crate (as seen at the autoshows)... and add a few hundred more ponies... Beside you could e-bay your 6.1 and probably get almost all the money to buy the bigger crate engine.

Hey guys,
Just wanted to say good job on the cars, and tell Gary Johnson,Matt and the rest of the guys there doin a great job on those comp coupes.Now, they just need to get the SCCA to let them get rid of those restrictor plates.

Amen! We agree.

Sorry to keep asking this question, but are you not going to address the question about the engine whine? Go over to ChargerForums.com and do a search and you will see I'm not alone on this question.
Because you are not answering it...then I suspect their is an issue as you addressed other topics like brakes, rotors, etc.

I love my car but want to make sure their isn't any big issues.

Slow Magnum follow up: Went down the quarter in Louisiana at sea level both times. 1st time it was high 60's outside temp with 1100 mi on it.
2nd time low 80's and 2500 mi on it.
It never got over 102 mph.
There is a SRT8 charger that ran 12.98 at 110 mph!!
That's a big difference! The charger was totally stock with only 500 mi on it.
Seems like a big difference for a couple hundred pounds!!

Here's one.

Why do these cars run so dang slow when it gets hot outside?

Anything above 70 degrees and this thing turns into a dog. I have had other performance cars that did not suffer from this and I raced a friend in a stock GM vehicle at 60 degrees and beat him. We did the same thing at 90 degrees and I lost. We did make sure all of the conditions were the same with the cars both times.

Unfortunately, the airbox can pull in hotter than outside air on a hot day.

I have a GC SRT8 on order, due to be here in a week or so. Will some of these problems that others are having be fixed since theirs are a few months older? ie.... the vibration, and brake problem.

Brake Noise has been adressed, and all units (regardless of Production Date) should not have Brake Noise except under a very specific set of circumstances (Low Temperature, High Humidity).

Drivetrain noise has been reduced, but the drivetrain will still make some noise under heavy acceleration. This is no indication of defect / impending breakage.

is the jeep srt8 going to be offered in 07 and 08 or is it limited to 06,

Please help... I must admit my dealer and Srt mechanic at my dealer are working very hard to help me however I still have a problem of my car completely losing power after reaching temperature that is exactly the third line for the bottom.. my car use to run just above halfway.... they have replaced my PCM and there is still the same existing problem on my 300c Srt8... the car seems to not be cooling down when turning on the heat and only seems to run correctly when at at the halfway mark of the temp gauge once it heats up I do not even have enough power to spin the wheels with esp deactivated and the car never seems to cool down nomatter what but it does not overheat either. my car also surges foward at 4000 rpms and it feels like some power is coming back after it chokes up several times at 4000 rpms and rpms are erratic and jump back and foward.. they have data logged my computer and thought it was the pcm however i still have this problem please help me any suggestions are appreciated.... keep in mind my car rums amazing and the same way it always did while it is at the halfway mark after about 15 min of driving i start to loose the power the the erratic rpm ghost haunts me..

Butt dynos don't count.

When and engine sounds better, it feels faster. Just like good smelling food tastes better.


good point, but they almost always notice better gas milage.

I have a GC SRT8 on order, due to be here in a week or so. Will some of these problems that others are having be fixed since theirs are a few months older? ie.... the vibration, and brake problem.

New cars get made with all updates as they become available.

What brake problem on Grand Cherokee?

:) There's a lot of talk out there about adding mods such as intake and exhaust and the cars "learning" the new mods and making adjustments for them, negating any additional power that may have been gained. (did I say that right?). Is it worth it to do these types of mods?
Depends on the extent of the mods. Cold Air and exhaust should be OK!!!!! :)

Hello,

My friend's AMG Mercedes has a button under his gas pedal that, when depressed, downshifts his tranny 2 whole gears. This is such a *****in option, I wish I could have the same thing installed on my SRT8M. Do you guys (and/or gals) think the 4-bolt A580 could be similarly wired ?

Thank you kindly for your reply...

bump....:cool:


The SRT8's have EXTREMELY robust cooling systems. I wouldn't worry about it.

Sorry to keep asking this question, but are you not going to address the question about the engine whine? Go over to ChargerForums.com and do a search and you will see I'm not alone on this question.
Because you are not answering it...then I suspect their is an issue as you addressed other topics like brakes, rotors, etc.

I love my car but want to make sure their isn't any big issues.


The Engine Whine is being caused by the Piston Oil Squirters. This hardware is an essential part of a high-performance engine, and the noise is not a sign of a defective engine

I would assume that the purpose of the factory ESP switch is to allow for free wheel spinning in less then ideal road conditions (snow, sand, mud, etc...), so the computer will still control the throttle to prevent "wild" shifting with tire spin.

So my question is, many owners have found that pushing the ESP switch allows for very aggressive launches, however, many have also noticed that the 1-2 shift is slower or more delayed after launching with the ESP switch in the disable position then it is in the normal "on" postion. Is this because the computer is still controlling the throttle when with the ESP switch in the off position?

Any Comment on the Mopar Cold Air Intake and Exhaust Kit for the GC SRT-8?

jst2

Shoudl be available shortly

Even after 5 months of production Grand Cherokee SRT8's are almost impossible to come by... I recently heard that production was limited to 20 vehicles per day due to problems with the wheel vendor not being able to supply enough product, it this the case and if so is it just a temporary supply problem?

Brake Noise has been adressed, and all units (regardless of Production Date) should not have Brake Noise except under a very specific set of circumstances (Low Temperature, High Humidity).

Drivetrain noise has been reduced, but the drivetrain will still make some noise under heavy acceleration. This is no indication of defect / impending breakage.

Well, I am in Denver, so no humidity. I hope I don't have any issues.

thanks for the reply.

So the EVIC dispayed temps of 238+ temp back in Sept. is nothing to be concerned about?

it was only 95 degrees then... hate to see the EVIC when it hits 120 in a couple months.

Now I know that you test cars in every situation, from blazing hot to freezing cold. But just like Up north where people block the grill off with cardboard when it is -60 to allow the engine to warm up quicker, would it not be benificial for those of us in the desert to go to a lower t-stat? Seeing as how cars shipped to Alaska get the same t-state as those shipped to Phoenix...

bump :confused:

The Engine Whine is being caused by the Piston Oil Squirters. This hardware is an essential part of a high-performance engine, and the noise is not a sign of a defective engine

Thanks so very much. I truely appreciate your reply. Can't wait to also get my Challenger :p

We've heard of a couple - not sure whether there was damage involved. If you have an issue, contact the Tech Line at 1-888-528-HEMI.

Thank you :)

As with any great Performance Car DC builds...and you guys design...What is your thoughts on driving these beauties in adverse winter driving conditions....in regards to damage caused by salt. I hate driving my beauties in winter, but I cannot keep puting cars away for the winter months!


We beat them through the winter up in Michigan. They are a blast with winter tires. Can't stand to see a good car not being driven!!

is the jeep srt8 going to be offered in 07 and 08 or is it limited to 06,
We will keep on making them.......but get one now because they are going fast:D

The Engine Whine is being caused by the Piston Oil Squirters. This hardware is an essential part of a high-performance engine, and the noise is not a sign of a defective engine

Pretend it is a gear drive... That's what I do... lol Sorry, I couldn't resist.:D

New cars get made with all updates as they become available.

What brake problem on Grand Cherokee?


is the brake problem only on the other models?:confused:

The brake noise question has been answered already on this forum. A fix will be in before summer. Same with shift hesitation. We understand both issues, but implementing fixes takes time because of engineering validation, producing parts, and executing paperwork.

There is a torque interrupt on shifts for transmission durability, also. The car will be faster without it, but unfortunately it is necessary.

We talk to Bodene all the time!:)

Please talk with him again, he has a message for you. He said he would try to get it to you before this chat, but I am unsure if he did.

In all of the correspondence we have had, no indication has been made that the 1-2 shift problem is resolved.

It's not the torque interrupt though. At WOT the car pulls you back in the seat (as it is supposed to) then as it goes to shift to 2nd gear it throws you so violently forward that you very nearly hit the steering wheel with your face. That is NOT normal, nor acceptable to anyone. The throttle cuts out entirely, then returns approximately 1/2 second later. This is in "D" not autostick. It can also be done at a 20mph roll then WOT to reproduce this effect at about 4500-5000 rpm so it is NOT hitting the rev limiter.

I suspect it is the ESP system and torque management... even though the ESP is in the 2nd position "off".

Thanks once again for being here with us. I hate to make this out to be a complaint session, but after 2 months of no resolution, it is just a bit aggravating on such an expensive car.

Hello,

My friend's AMG Mercedes has a button under his gas pedal that, when depressed, downshifts his tranny 2 whole gears. This is such a *****in option, I wish I could have the same thing installed on my SRT8M. Do you guys (and/or gals) think the 4-bolt A580 could be similarly wired ?

Thank you kindly for your reply...

The Button under the accelerator is used to allow European high-performance cars to meet noise pass-by regulations by preventing downshifts. Cars sold in the USA have the capacity to downshift built into throttle pedal actuation.

Just putting your right foot down should do all the same things as hitting that magic button on your firend's AMG.

We beat them through the winter up in Michigan. They are a blast with winter tires. Can't stand to see a good car not being driven!!
Who makes winter tires for GC SRT8?

I get the sense that we're all waiting in vain. :mad: :(

However, in case we're not, any plans on offering performance upgrades for the JGC SRT8 like those available for the SRT4; heads, cams, etc.?

We're all hungry for more power and we have pockets full of cash. I'd like to give it to Jeep, but I can't wait forever.

:D

cat back exhaust and a cold air system will be available soon (by summer)

What are the expected gains from the Intake and Exhaust mods?

Any negatives?

Thanks,
John

Hello.

Im from Abu Dhabi UAE and Im thinking of getting the jeep srt8, 300c srt8 and the charger srt8 very soon.

I want to ask you how robust are these cars in hot(120+F) weather and how well they can travel at maximum speed for 2 to 3 hours straight.
Also is there a speed limiter on them like german cars.

And will SRT further modify (larger engine, interior etc) them for me if I ask them too?

--------------------------------------------------------------------------------

Any plans on offering performance upgrades for the JGC SRT8 other than just the CAI and exhaust?

I LOVE POWER...and cheese! :D

Possibly later .........

I'm planning on modding my 6.1. I will be doing forced unduction, ported heads and intake and headers. Warranty aside, I'm planning on making almost 600hp at the crank. All professionally installed and tuned. Now for your opinion:


Is this too much for the bottom-end to hold without reworking?
What would be the max in your opinion?


You can answer either question.

Sorry to keep asking this question, but are you not going to address the question about the engine whine? Go over to ChargerForums.com and do a search and you will see I'm not alone on this question.
Because you are not answering it...then I suspect their is an issue as you addressed other topics like brakes, rotors, etc.

I love my car but want to make sure their isn't any big issues.

There are no noise issues from under the hood that will create any big issues as you noted. Our suggestion is that you let your dealer evaluate it.

Also does SRT modify the current viper coupe.

My brother wants a 1000+hp NA Engine in his Coupe.

i'm not sure if this question was asked before but will there be any performance changes to later model jeep srt8's bringing hp output over the 420hp mark? thanks

Good point. These chats are awesome, but the Viper is the KING of all Mopars and there hasn't been a single chat for us Viper owners yet. I've mentioned it to a couple of guys from SRT in the past, but still nothing...apparently, we'll have to wait until VOI.9!

Good possibility that the next one or two will be for the Viper nation......hang in there

is the brake problem only on the other models?:confused:

the rotor issue is unique to the sedans. It is not on the Grand Cherokee.

is the brake problem only on the other models?:confused:
We are not aware of any brake issues with the GC SRT.

Okay I am 0-4 here LOL.... let me try again. Warranty issues aside. Is the rear gearset in the LX SRT cars the same as the Jeep SRT. My question can you swap the 3.73 gears into an LX SRT car?

I'm planning on modding my 6.1. I will be doing forced unduction, ported heads and intake and headers. Warranty aside, I'm planning on making almost 600hp at the crank. All professionally installed and tuned. Now for your opinion:


Is this too much for the bottom-end to hold without reworking?
What would be the max in your opinion?


You can answer either question.

Sorry we cannot answer that question because we do not know how much or for how long. You do have a forged crank, powered metal forged rods and 10.3 compression ratio. High compression ratio and boost has a tendency of melting pistons.

The brake noise question has been answered already on this forum. A fix will be in before summer. Same with shift hesitation. We understand both issues, but implementing fixes takes time because of engineering validation, producing parts, and executing paperwork.

There is a torque interrupt on shifts for transmission durability, also. The car will be faster without it, but unfortunately it is necessary.

We talk to Bodene all the time!:)

Please talk with him again, he has a message for you. He said he would try to get it to you before this chat, but I am unsure if he did.

In all of the correspondence we have had, no indication has been made that the 1-2 shift problem is resolved.

It's not the torque interrupt though. At WOT the car pulls you back in the seat (as it is supposed to) then as it goes to shift to 2nd gear it throws you so violently forward that you very nearly hit the steering wheel with your face. That is NOT normal, nor acceptable to anyone. The throttle cuts out entirely, then returns approximately 1/2 second later. This is in "D" not autostick. It can also be done at a 20mph roll then WOT to reproduce this effect at about 4500-5000 rpm so it is NOT hitting the rev limiter.

I suspect it is the ESP system and torque management... even though the ESP is in the 2nd position "off".

Thanks once again for being here with us. I hate to make this out to be a complaint session, but after 2 months of no resolution, it is just a bit aggravating on such an expensive car.

What is the big secret about total production numbers on the SRT8 models? Why don't you just give this information out? The ONLY advantage I see for the secrecy is so that dealers can use it to their advantage to gouge customers, which they have been doing since day one...

I would assume that the purpose of the factory ESP switch is to allow for free wheel spinning in less then ideal road conditions (snow, sand, mud, etc...), so the computer will still control the throttle to prevent "wild" shifting with tire spin.

So my question is, many owners have found that pushing the ESP switch allows for very aggressive launches, however, many have also noticed that the 1-2 shift is slower or more delayed after launching with the ESP switch in the disable position then it is in the normal "on" postion. Is this because the computer is still controlling the throttle when with the ESP switch in the off position?

Please see page 136 in your owners manual.

Sorry we cannot answer that question because we do not know how much or for how long. You do have a forged crank, powered metal forged rods and 10.3 compression ratio. High compression ratio and boost has a tendency of melting pistons.

I don't know no lawyer speak, but I'll try it this way. If YOU had an SRT 8, how much power would YOU feel comfortable adding?
Gotcha now!!!

Okay I am 0-4 here LOL.... let me try again. Warranty issues aside. Is the rear gearset in the LX SRT cars the same as the Jeep SRT. My question can you swap the 3.73 gears into an LX SRT car?

No, The Rear Suspension in a LX SRT8 is Independent, and the Grand Cherokee has a solid Rear Axle. Beyond that, the gear sets and layout are very different. The Grand Cherokee uses a Dana-44, while the LX vehicles use a Mercedes-based Ring & Pinion

Okay I am 0-4 here LOL.... let me try again. Warranty issues aside. Is the rear gearset in the LX SRT cars the same as the Jeep SRT. My question can you swap the 3.73 gears into an LX SRT car?

There are no other final drive ratios available for the LX rear axles. Sorry.

Please can you tell me if SRT modifies vehicles if I pay them extra.

Also can you perform engine swaps if I send you a car.

Money is a non issue so please tell me if its possible.

ps
Also, it has been mentioned, but not verified, that the new Caliber uses the same turbo as the one used by the S3R kit for the SRT-4.
Is this correct?

If so, has MoPar observed any cracking in the turbine scroll area on those particular turbo's?

Last, what does Mopar think of the idea of welding the cracks in the manifold scroll area?
Thanks.

No the turbos between the two cars are not the same.....

Hello.

Im from Abu Dhabi UAE and Im thinking of getting the jeep srt8, 300c srt8 and the charger srt8 very soon.

I want to ask you how robust are these cars in hot(120+F) weather and how well they can travel at maximum speed for 2 to 3 hours straight.
Also is there a speed limiter on them like german cars.

And will SRT further modify (larger engine, interior etc) them for me if I ask them too?
We test in death valley and have aproving grounds in Arizona so don't worry about extended runs in the heat. There is not a speed limiter. As for further modifications we don't have enough people for custom work (except a race car hear or there)

Please talk with him again, he has a message for you. He said he would try to get it to you before this chat, but I am unsure if he did.

In all of the correspondence we have had, no indication has been made that the 1-2 shift problem is resolved.

It's not the torque interrupt though. At WOT the car pulls you back in the seat (as it is supposed to) then as it goes to shift to 2nd gear it throws you so violently forward that you very nearly hit the steering wheel with your face. That is NOT normal, nor acceptable to anyone. The throttle cuts out entirely, then returns approximately 1/2 second later. This is in "D" not autostick. It can also be done at a 20mph roll then WOT to reproduce this effect at about 4500-5000 rpm so it is NOT hitting the rev limiter.

I suspect it is the ESP system and torque management... even though the ESP is in the 2nd position "off".

Thanks once again for being here with us. I hate to make this out to be a complaint session, but after 2 months of no resolution, it is just a bit aggravating on such an expensive car.Please don't post your question repeatedly... let the team answer you when they are ready. There are others who have only asked ONE question that deserve attention as well.

Thank you

Good possibility that the next one or two will be for the Viper nation......hang in there

AWESOME! Thanks much. Will those chats include Mike & Steve?

Please see page 136 in your owners manual.

Thanks for the feedback, I will check it once I get my owners manual in the mail (my Jeep was shipped/sold without it).

I do have the CD service manual which explains it more, however, it lacks some of the updates for the SRT8 software/settings/features.

The Button under the accelerator is used to allow European high-performance cars to meet noise pass-by regulations by preventing downshifts. Cars sold in the USA have the capacity to downshift built into throttle pedal actuation.

Just putting your right foot down should do all the same things as hitting that magic button on your firend's AMG.


Thanks for your explanation. However, I wish I felt that my tranny reacted as well as you say it should. Am I correct in guessing that it's programmed very conservatively? It is the only thing that bothers me about my SRT8M (no other issues, except for too many cops in my neighborhood). Sad to say, but the Torqueflite in my 340 Dart GTS is much more virile than this Mercedes monster.

I don't know no lawyer speak, but I'll try it this way. If YOU had an SRT 8, how much power would YOU feel comfortable adding?
Gotcha now!!!

Done with the right parts and the right calibration, the bottom end will be good for over 600HP. The piston receives allot of cooling from the calibration and needs to be tweeked for boost or RPM.

A mustang dyno is a brand name.
Is 319RWHP sound low to you and if so what can I do as a customer?

What are the expected gains from the Intake and Exhaust mods?

Any negatives?

Thanks,
John

We'll stand behind our systems

There are no noise issues from under the hood that will create any big issues as you noted. Our suggestion is that you let your dealer evaluate it.

Thanks, appreciate it.

What is the big secret about total production numbers on the SRT8 models? Why don't you just give this information out? The ONLY advantage I see for the secrecy is so that dealers can use it to their advantage to gouge customers, which they have been doing since day one...

We're engineers. The more the better. We don't spend our days compiling production numbers. We'll let the collectors do that later.

Also does SRT modify the current viper coupe.

My brother wants a 1000+hp NA Engine in his Coupe.

We have Mopar parts that a dealer can install, but that will "only" get you to 554 HP and 585 HP. If you need more you need to go to aftermarket twin turbo guys - good luck.

We test in death valley and have aproving grounds in Arizona so don't worry about extended runs in the heat. There is not a speed limiter. As for further modifications we don't have enough people for custom work (except a race car hear or there)

speaking of proving grounds...

With a truck club we were able to arrange a day for the club at the GM Arizona proving grounds, driving our trucks on all the test tracks and getting sneek peaks at certain new cars (already seen at major autoshows, just not availible for sale yet... nothing top secret)

Would such a club day be able to be put together at the DCX Arizona proving grounds ?

I've got an '00 Viper GTS with the Arrow rebuild, Belanger headers, Mopar cat back, no cats (using a SIM box), smooth tubes and K&Ns. A recent dyno pull netted 432 RWHP, but the A/F plot showed that the car is running rich from 3300 RPM and up. Is there any way to adjust the A/F ratio short of installing a VEC2?


not sure what a sim box is?? there is no way to vary the a/f ration on the stock controller

speaking of proving grounds...

With a truck club we were able to arrange a day for the club at the GM Arizona proving grounds, driving our trucks on all the test tracks and getting sneek peaks at certain new cars (already seen at major autoshows, just not availible for sale yet... nothing top secret)

Would such a club day be able to be put together at the DCX Arizona proving grounds ?


You'll have to contact them. We are up in Michigan.

Sorry. Got here late. 2006 Charger SRT8 prod date 10/05 - there's been a lot of discussion re: limited slip differentials - My car seems to already have LS - I say that because I've never seen less than both wheels leave marks. Am I wrong in assuming that the Chargers shipped with LS?

Thanks.

Where can I get new 6.1 L V8 engines?

I would like to thank the SRT engineers for taking the time to answer our questions and take a beating from those less patient.:D

Keep doing what you guys do best, make beautiful and grand automobiles.

See you next month.:D

not sure what a sim box is?? there is no way to vary the a/f ration on the stock controller

The sim box tricks the PCM into thinking the cats are still there. Several Viper aftermarket guys such as Sean Roe sell 'em.

The car is not throwing any codes and the adaptives in the PCM are within range (the PCM is adding 3 to 5 percent fuel across the board). Is there anything else I should check for the rich condition before I put on the VEC2 and start dialing in the car that way?

I would like to thank the SRT engineers for taking the time to answer our questions and take a beating from those less patient.:D

Keep doing what you guys do best, make beautiful and grand automobiles.

See you next month.:D


OK. I apologize to everyone for my repeated question about the engine whine. It will not happen again. I mean it.
Thanks and again sorry.

We have Mopar parts that a dealer can install, but that will "only" get you to 554 HP and 585 HP. If you need more you need to go to aftermarket twin turbo guys - good luck.

For 1000+ with twin turbos, try Underground Racing in North Carolina, RSI and Heffner Performance. There are a couple of twin turbo Vipers in our region making well over 1200 RWHP on pump gas.

Well I know it is a lighter duty set ... but how about the 3.90 from the Magnum SE?? :OP I know Magnum RT owners have performed this swap. That would get a LX SRT out of the hole!!

Sorry. Got here late. 2006 Charger SRT8 prod date 10/05 - there's been a lot of discussion re: limited slip differentials - My car seems to already have LS - I say that because I've never seen less than both wheels leave marks. Am I wrong in assuming that the Chargers shipped with LS?

Thanks.


The diff is open, but the ESP system uses the brakes to transfer torque from the slipping wheel to the traction wheel. It works pretty well, as you observed. We ran a Quaife at One Lap and Targa Newfoundland last year, but you'll probably only see gains over stock on a racetrack.

I have heard less than great reviews of Sirius reception in my area. And my personal and home auido are all XM Radio and I am also not a fan of the factory Chrysler Sirius Atenna. But I really want the NAV system. Is it possible to Factory order the SRT Option Group III (In my Case a Magnum SRT8) and delete the Sirius option.

In Canada you can get a Magnum SRT8 with NAV and no Siruis or on any other trim level of the Magnum.

thanks guys


Sorry your out of luck..............

can the srt--4 be used to tow anything. if so how many lbs?

When a GC SRT8 is purchased new, what should be included with the car. ie silver pedals, manuals, headphones for the DVD.......etc

Where can I get new 6.1 L V8 engines?

The 6.1L Engines are not sold alone. The only way to get a 6.1L Engine is to have it wrapped in an SRT8

The diff is open, but the ESP system uses the brakes to transfer torque from the slipping wheel to the traction wheel. It works pretty well, as you observed. We ran a Quaife at One Lap and Targa Newfoundland last year, but you'll probably only see gains over stock on a racetrack.

Thanks guys. I'll get back to the head of this forum to catch up. I LOVE my ride!

gotta go

Well I know it is a lighter duty set ... but how about the 3.90 from the Magnum SE?? :OP I know Magnum RT owners have performed this swap. That would get a LX SRT out of the hole!!


The SRT8 LX has a bigger, beefier differential than the regular cars. Different parts.

Any problems caused by installing an after market cat-back exhaust system or cold air intake? Also when can we expect some performance mods from Jeep for our SRT8's.e

That should be fine. As for more mods it may be a while but stay tuned

Thanks for your inut tonight guys. have a good one :D