Mods to date (3500 miles):
"Sarge / Claude" brake snorkle ram air setup (from other site).
K&N air filter
Mopar catback purchased and installed by dealer.A few things learned:
The "Jeep" is a real crowd pleaser! The announcer had a ton of fun with the SRT 8 "don't bet against this factory hotrod" etc.
The rev limiter "hit" can be heard in the stands as I was questioned about how could I miss a shift with an automatic! The remaining 2-3 etc. shifts were less noticeable to the stands.
I need a lot of tree practice. Oh well, this is about Hemi not me.
The fan mod was installed, but, blew a fuse so that was not used.
I need to install a 185 f thermostat. The engine ran 215 f on each run.
I have ordered a stage II PCM (Tbyrne) to raise the rev limiter to 6450. My dealer won't do the tsb because I have an '07. Mine was assembled on 8/30/06 maybe that is why it has the old dated TCM. I will do back to back runs with the new vs. old PCM.
The traction control made NO difference in time. Actually my best time was made pulling directly off the highway into the staging lights, radio on, traction on, Nav. on no autostick, full toolbox in back. Heater was on (48 f ambiant outside) or I probably would have forgot to turn off the AC!!Thoughts on getting to the next level before I run up against one of you guys?
Bill

nice times. I bet with the stage II PCM you'll be in the high 12 second range

By the way, do you have a link to how to do the snorkle mod?

great job Bill, sounds like you had alot of fun. Was this your first quarter mile run? How do you like the Mopar catback?

http://www.***********/forums/showthread.php?t=3668&page=14

I basically used the same idea with the exception of a rubber toilet reducer from 4" to 3" and 4" dryer vent....Home Depot's best (ha). I installed the air box 1st with the hose attached and then trimmed the hose to the correct dimension at the brake snorkel. Oh, the brake snorkle gets trimmed as shown.
Bill

Yes, this was the 1st for me...had no earthly idea what I was doing.
I love the Mopar cat back. The sound is similar at idle and easy cruising to stock but really opens up on full throttle. The fans said it sounded great!
Bill

My next mod will be the Mopar catback. I have not run the quarter mile yet the track is about an hour away from me. Although they are building a 1/8 mile track which will be 20 minutes away, that should be ready in a couple of weeks. The JGC should run nice there.
craig

Nice times.

You must be an engineer... Great job documenting/datalogging your runs! That's similar to what I did with my other cars using Excel.

Excellent times indeed. Just two questions for you:
1. What was your tire pressures set to?
2. Before you staged, I'm sure you drove around the water box. Did you even attempt to "clean" the tires by romping on it in the burnout area or is that impossible to do with the AWD? I see one of your runs went south due to wet tires.

Good guess on the Engineer. I worked for DB as an Engineer then went into construction...thank goodness!

I did not touch the tire pressure yesterday, no compressor or air tank with me . The pressure in all 4 tires was 35 psi hot.

I did do the "romp" in the burnout area. A little screech and that was it. A fellow that was there, a jeep mechanic from Concord, told me that it would sure help to drive around the water rather than though it. I don't profess to know very much about this.
Bill

Sorry, I can't see the numbers on the slips, what did you run 60', 1/4 trap/ET?
Nice work on the snorkel as well.

Thanks.
60' = 1.813
1/4 =13.173
Speed = 102.46

Thanks.
60' = 1.813
1/4 =13.173
Speed = 102.46


Pretty sporty for a near stocker. Nice! What was the weather like?

The weather was windy and chilly (48 f). I know that is not very chilly to our northern members, I grew up in Buffalo!

The Jeep is like trying to push a shoebox through the wind! Not so sleek.
Bill

Nice times man. Can't wait to see what happens once you get your new mods.

great times. racing at a track is such a rush isn't it?:D

i'd like to do the brake vent/air cleaner mod but i need to think of something to use rather than a dryer vent hose. i know it works but there has to be something out there that is more asthetically pleasing. :cool:

The weather was windy and chilly (48 f). I know that is not very chilly to our northern members, I grew up in Buffalo!

The Jeep is like trying to push a shoebox through the wind! Not so sleek.
Bill

Was it a head, cross, or tail wind?

great times. racing at a track is such a rush isn't it?:D

i'd like to do the brake vent/air cleaner mod but i need to think of something to use rather than a dryer vent hose. i know it works but there has to be something out there that is more asthetically pleasing. :cool:


It's not pretty but it works and it's not really visible.

SRedrockT8,
I agree it looks like hell if you crawl under the Jeep. I am currently looking for more of a formed rubber elbow and tube. I purchased a 4' length of 4" insulated piping used on some "ricers" ,but I don't think I will use it. Oh well, another $160 .00 out the damn window.
This was a cheapo way to test the system from people on the other site.
Bill

Bill, Nice times !!:)

GotStroke,
Glad I had a heavy coat with me.
It was a cross wind. Just like golf, the wind is never at your back.
Bill

SRedrockT8,
I agree it looks like hell if you crawl under the Jeep. I am currently looking for more of a formed rubber elbow and tube. I purchased a 4' length of 4" insulated piping used on some "ricers" ,but I don't think I will use it. Oh well, another $160 .00 out the damn window.
This was a cheapo way to test the system from people on the other site.
Bill
Please post some descriptions and photos if you if you go with the piping. I'm interested in the mod. I had my experience with that "dryer" type tubing I had in an offroad beater. It eventually looked like a shotgun had its day with it. But it does work temporarily, kinda like duc tape.

GotStroke,
Glad I had a heavy coat with me.
It was a cross wind. Just like golf, the wind is never at your back.
Bill


LOL, I hear that.

Fun day at Rockingham yesterday (2 / 10 /2007) with another one of our members I will call "'06", mine was "07 at the track.

Solidly in the 12's!! What a blast with my wife Mary. She rode on the 1st pass so kinda discount that. '06's Black JGC does not have many serious mods either: Modified Dub intake, thermostat, fan mod, standard exhaust etc.and runs consistent 12.8 all day. My 12.9 was good but not good enough. These are things I learned today:
26 psi rear works great, the front to 42psi did not help much.
My biggest gain from last time I think was due to the 180 thermostat, actually thinking about trying the thermostat.
NO burnout works best, wish I knew about the pink fuse trick.
My '07 stumbles so badly on the shifts @ 6200 rpm , I will get the AH flash when it is available in the next few weeks.
I don't think the Mopar catback is much advantage, although it sounds better.
This week I switched to the Volant with my ram air setup.
My fan mod blew the fuse for the last 2 runs..I am going to a 50 circuit breaker to match the new 50 amp relay.Hope the PDF file attached works.
Bill

That's awesome Bill. It looks like your biggest improvement was really your RT!

Alex

That's awesome Bill. It looks like your biggest improvement was really your RT!

Alex Like everything else practice, practice. My wife said " why does the other JGC gain a length of the start?" Well?? Cause 'Mr. '06 is pretty damn good and has a great RT!
Bill

Like everything else practice, practice. My wife said " why does the other JGC gain a length of the start?" Well?? Cause 'Mr. '06 is pretty damn good and has a great RT!
Bill

Bill! Great times my man! Great times! You had 26psi on the rear tires? Worked well I see.. I cant wait to get to the track and test out my baby.

Keep up the great work.

I will most likely pump the front up to 40 psi, even though I did not see a real gain, it can't hurt.

I will also pull the pink fuse as suggested by Claude on the other site. Also going to change to a 176* thermostat (Motorad 4127 / Robert Shaw 383-170 from Autozone).

What fun!
Bill

I will most likely pump the front up to 40 psi, even though I did not see a real gain, it can't hurt.

I will also pull the pink fuse as suggested by Claude on the other site. Also going to change to a 176* thermostat (Motorad 4127 / Robert Shaw 383-170 from Autozone).

What fun!
Bill

176? That's going to be cold! Congrats on your runs. Wish I could find some SRT8 comradery here in Houston. By the way, I'm tracking your runs along with mine. Have a favor to ask... can you add DA to your track runs?

Do you also have the Mopar/Corsa cat-back? You stated it didn't help much other than the sound?

176? That's going to be cold! Congrats on your runs. Wish I could find some SRT8 comradery here in Houston. By the way, I'm tracking your runs along with mine. Have a favor to ask... can you add DA to your track runs?

Yes, be glad to, how do I find the DA?
Believe there are others on this forum around you!

Do you also have the Mopar/Corsa cat-back? You stated it didn't help much other than the sound?


I really did not notice much of a difference with the Mopar catback performance wise (did not do a back to back comparison at the track either) other than I do like the sound better than the stock , especially at WOT.

Bill

Bill, I'm the "06" you ran at Rockingham on Saturday. Great to meet another SRT8 Jeep owner! Thanks for the nice comments.

I've got the 176 degree thermostat from Autozone and my temps with the fan on stayed right at 184. Looks like thats the same as the thermostat your currently running.

For those of you still pondering a thermostat, I ran many runs last week (2/03/07) with the water temp at about 215 then at 184 (Air temps were in the low 40's). The 215 temp netted times in the range of 13.03 - 13.07. The 184 temp netted 12.80 - 12.84, assuming the Jeep doesn't hit the rev limiter. I'm seem to loose about a tenth every time the rev limiter is hit between 2nd and 3rd.

Bill, I'm the "06" you ran at Rockingham on Saturday. Great to meet another SRT8 Jeep owner! Thanks for the nice comments.

I've got the 176 degree thermostat from Autozone and my temps with the fan on stayed right at 184. Looks like thats the same as the thermostat your currently running.

For those of you still pondering a thermostat, I ran many runs last week (2/03/07) with the water temp at about 215 then at 184 (Air temps were in the low 40's). The 215 temp netted times in the range of 13.03 - 13.07. The 184 temp netted 12.80 - 12.84, assuming the Jeep doesn't hit the rev limiter. I'm seem to loose about a tenth every time the rev limiter is hit between 2nd and 3rd.
Blackstallion, an absolute pleasure to meet you from Mary & I!!

You are finding the EXACT same results that I have with the temps. When my fan mod fuse blew for the last run I was SOL. That won't happen again, I changed to a 50 amp relay and a 50 amp HD breaker. I WILL use the fan more carefully rather than leaving it on all day.

Your '06 without a catback that runs a CONSISTENT 12.8 (all day long) proves to me that while I like the Mopar catback, it doesn't help ET at all. You may have something with the modified DUB CAI you have that eliminates the under hood high temps.

BTW, I was running a 180* thermostat that was giving me (according to the scanware software on the laptop) 182*. Just looking at cooling the beast down, I believe that is one of the biggest gains for $20.00

Ready for a rematch any time...looking into track rental for a day also...my dime. Great if anyone else joined us at Rockingham NC. Great time. Unfortunately, if i don't run 12.8 without much more work, things are going to get a little more expensive for me...converter, heads etc.

Enjoyed the day, let me know about a rematch date, weather dependent.
Bill

Your right about the mods. I think to get any faster we're going to have to step up the plate with heads, cam, and headers. Looks like the cheap mods are done.

Let me know when your going again. I've been the last three weeks so I think I'm going to have to take a break for a little while if I want home life to stay happy :) Again, great meeting you and your wife.

Yes, be glad to, how do I find the DA?


I use this to confirm weather conditions at approx the time of my runs: http://www.weatherunderground.com/history/airport/KRCZ/2007/2/10/DailyHistory.html?req_city=NA&req_state=NA&req_statename=NA

Using the temp, humidity, pressure, and track altitude (I think 898' for Rockingham county?), use this calculator: http://www.modulardepot.com/density2.php

At least you'll be able to know if air quality was having a positive (or negative) effect on performance when comparing your runs.

Bill, my times are similar to yours, at least until you dip into the 12s. My best 1/4 to date is 13.15 at 102.51 in 40 degree weather with a 1.79 60'. Tire pressure was 40 front and 30 rear. Mods include modified stock air box with KN, no ram air, 180 therm, and Mopar Catback. You will probably realize hp and tq gains after you install headers, heads. Oh, I launch at 1500. This works best for my vehicle. I have been racing cars at the track for over 20years. So, you are driving your vehicle to its potential. I will try the ram air mod next. Thanks for sharing your info.
Busy

Bill, my times are similar to yours, at least until you dip into the 12s. My best 1/4 to date is 13.15 at 102.51 in 40 degree weather with a 1.79 60'. Tire pressure was 40 front and 30 rear. Mods include modified stock air box with KN, no ram air, 180 therm, and Mopar Catback. You will probably realize hp and tq gains after you install headers, heads. Oh, I launch at 1500. This works best for my vehicle. I have been racing cars at the track for over 20years. So, you are driving your vehicle to its potential. I will try the ram air mod next. Thanks for sharing your info.
Busy
Busy,
I would be glad to send you my old ram air that worked with the stock air box. Send me a PM with your shipping info if interested.
I found 25 psi rear bites a little better as I believe Blackstallion also runs. The pulling of the pink fuse for the traction control is something I will also try. With your 180* thermostat do you use use the fan mod to really cool it down? Very important according to my times and '06's.

Damn, I agree, I believe Blackstallion and I have about rung all of the power out of these without doing much more work.

Bill

I use this to confirm weather conditions at approx the time of my runs: http://www.weatherunderground.com/history/airport/KRCZ/2007/2/10/DailyHistory.html?req_city=NA&req_state=NA&req_statename=NA

Using the temp, humidity, pressure, and track altitude (I think 898' for Rockingham county?), use this calculator: http://www.modulardepot.com/density2.php

At least you'll be able to know if air quality was having a positive (or negative) effect on performance when comparing your runs.
I used the above calculator and came up with a DA of 194 for the January 20th date and a DA of 353 for February 10th.

Which DA is better for quicker ET???
Thanks,
Bill

You all are my heroes! Thanks for posting times and conditions!

I used the above calculator and came up with a DA of 194 for the January 20th date and a DA of 353 for February 10th.

Which DA is better for quicker ET???
Thanks,
Bill
The smaller number always indicates better air quality, but in the world of racing, tire pressures, IAT temps, engine temps & timing, A/F ratios. track conditions, experience and luck also play a roll. My two best's 13.02 & 12.98 have yet to be duplicated again.(but @ 60* in texas-not bad) Damn, german speed denisty based computer. With a MAF conversion kit, this motor would be a freak. Maybe someone will read this b/c there are some kits under developement now, just none for the JEEP.

Results from Rockingham drags yesterday:
With the change to the lower thermostat 176* from Autozone vs. my 180* Stant the actual launch temps from my laptop equipped with Scantool were 185* previous, 172* yesterday. This showed to be worth between .05 & .1 on the 1/4 mile and about 1/2 mph faster. Something to that lower temp. NOTE: My Scantool picked up a "potential" coolant temp defect even though no dash light was on. I drove with this thermostat for 2 days in 25* - 45* temperatures in Charlotte. You can obviously warm the Hemi up by using the Autostick. Now I am undecided on keeping the lower thermostat for winter use. It does seem to get better fuel economy back and forth to Rockingham with the lower thermostat.

The shifting hesitation is getting noticeably worse, I am scheduled to meet with the Viper mechanic Monday am for the '07 re-flash to "AH".

On the '07 do NOT remove the pink traction control fuse!! I aborted runs 3 & 4 due to this. I had a couple of great guys watching after I pulled the fuse on run #3 and spun badly. What they saw was shocking...the right rear and the left front tires went up in smoke they spun so badly. Hmmm, anyone try the GSM traction mod on the '07? Wonder if it would also produce this crazy result. I will also talk to the Viper guy tomorrow at the dealer to see if he knows anything on this.

All in all, a great day & am now in the 12.8, Hey BlackStallion, I am almost ready for a rematch!
Bill

DA was 499 yesterday compaired with 353 the previous week

Bill great results!

It was exactly 48 degrees on all 3 days? Talk about luck.

It was exactly 48 degrees on all 3 days? Talk about luck.
Luck, I am ready for some warmer temps! Sorry Northerners, I grew up in Buffalo, it sure is nice being able to do outside activities all year long in Charlotte.
Bill

Bill, Nice times. I think you have squeezed about as much as your gonna get from a stocker in those temps & D/A's. :)

I'm going to dump some Water Wetter in tomorrow to see if there's any difference in operating temps. Anyone else try this yet?

Bill, Nice times. I think you have squeezed about as much as your gonna get from a stocker in those temps & D/A's. :)
I agree. The problem is more in hooking up now.
Have you done the GSM style torque mod? Does anyone know if it supplies power to ALL 4 tires, not just the Right rear and Left front that removing the pink fuse did for me. If I can't hook this up then I'm not sure the torque converter I ordered from Mopar Superstore will do much good!
Bill

They are both single leg diffs.(fr & rr). The limited slip function is brake torque management initialized thru the BCM. The GSM( I don't have it) interfers with the TM, so I would guess you would spin under certian conditions as welll(2 that is). Don't you just love all the electronics. :cool:

They are both single leg diffs.(fr & rr). The limited slip function is brake torque management initialized thru the BCM. The GSM( I don't have it) interfers with the TM, so I would guess you would spin under certian conditions as welll(2 that is). Don't you just love all the electronics. :cool:
Getting over my head! How do the guys with strokers, turbos etc get the power to the ground? I believe there is probably 3 tenths in all the electronics (PCM, TCM, BCM and all the other **CM's) that we will NEVER realize.
Bill

I'm going to dump some Water Wetter in tomorrow to see if there's any difference in operating temps. Anyone else try this yet?

Had to Google this one!
Interesting though. Let us know!

Getting over my head! How do the guys with strokers, turbos etc get the power to the ground? I believe there is probably 3 tenths in all the electronics (PCM, TCM, BCM and all the other **CM's) that we will NEVER realize.
Bill


once you start overpowering available traction with the "mash & go" method, then driver skill comes in. applying the right amount of power from a stop that doesnt cause traction loss but still gives good 60' times. that takes time & practice as track conditions vary every time.

They are both single leg diffs.(fr & rr). The limited slip function is brake torque management initialized thru the BCM. The GSM( I don't have it) interfers with the TM, so I would guess you would spin under certian conditions as welll(2 that is). Don't you just love all the electronics. :cool:


Are there any direct replacement true limited slip diffs available?

I'll call http://www.drivetraindirect.com/ tomorrow to see what's available.

Nice times.

12.5 ;)

The following conclusions are based on one hell of a fun day (3/9/07) of WELL OVER 100 runs on my Hemi with BlackStallion’s ’06 stocker joining us for some completion. I started the driving with a couple of passes then Brad and Isaac took over for the remainder of the day. I finished the last two runs laying down my best time of 12.85 @ 105.95. Not sure why they could not get solidly in the mid 12.8’s…..they tried every driving technique know to man. We all agreed that the quickest times were one again, launch at about 1200 rpm in drive, traction control off, 25 psi rear 40 psi front. Conclusions:


GAS 93 octane vs. 100 octane:


No difference:
15 gallons burned of 100 octane, 10 gallons burned of 93 octane. Best time was actually with the 93 octane. Thanks computer!
Volant CAI with Bill’s brake ram air:
1 mph inc.& 1 tenth decrease. A MUST DO!
I Removed the brake ram air snorkel for 15 runs, lost 1mph and 1 tenth. Re-installed it for remainder of the day and picked up the lost 1 mph and 1 tenth. This is an inexpensive mod. Hemi’s love air as much as they hate heat. I will be trying to get even more air to the Hemi some how, I am also using the stock front grill scoop with the open front.http://www.cherokeesrt8.com/forums/showthread.php?t=2680&highlight=brake+ram+air


Disconnect / reconnecting the battery for reset:
TCM / PCM:
Be CAREFUL on the 1st run after doing this. Mine did not shift out of 3rd and hit 7500rpm (not to good for the Hemi) and shut off through the lights yielding a mph of 95. This happened both times until BlackStallion told me to make a WOT trial run on pit road with a 1-2, 2-3 shift. No more problems after reset when following his procedure. BTW the Hemi learned shifting (still the damn hesitation though) better on each pass as time slips on both his ’06 and my ’07 showed.GSM phenolic spacer :
Tiny difference, I will keep it installed:
We needed to wait until my original intake manifold was cool enough to remove without burning ourselves. One thing I noticed when we removed the intake (simple process) was how rough the intake casting was on the interior. I though the coating that the SRT engineers talked about was to make it smooth. Not so Engineers, better check the manufacturing process, these look like very rough cast aluminum. I am working with some of the guys that have modified the intakes and will have one ordered by the end of the weekend.
The temperature difference with the spacers installed is SHOCKING! Now the intake is barely warm. Unfortunately, it made a tiny difference in ET and mph... talking second decimal place difference. It believe that there is a gain somewhere to be had with cool intake air vs. HOT intake air. Is it the damn computer some how?2600 Torque Converter:
No difference, I will keep it installed:
I can no longer hook up therefore my 60’ times are no longer in the 1.7 range as Blackstallion runs. His will normally not spin the tires. With this converter, mine will spin no matter the launch technique. And Rockingham had the track so well prepared that it was VERY difficult to walk across the starting line in sneakers. I will post another thread on slicks / drag slicks as I need help and more mods do not make sense if I can not hook up with the current power. I did run the best time and mph though with the current mods.Hurricane variable resistor:
No difference, I will keep it installed:
Shocker, I connected the thing to my IAT sensor wire, turned on my laptop to check the IAT which at the time read 71*, rotated the knob and WOW the IAT dropped to 45*. WTH? It actually fooled the PCM? Lets make before and after passes with the new variable of IAT….ah, the runs never varied a hundredth in ET or mph. May be on to something here though. Why not use this gizmo to fool some really important sensors like the MAP sensor or any other voltage related sensor. More testing needed.http://www.hurricane-horsepower.com/#F5


Radiator cap (no kidding)
It leaks from the top gasket!
Wondered where the antifreeze was coming from at the cap area. Ha, I went over to Blackstallion and he had a baggie on top of his cap! I’m obviously not the only one with a leak during thrashing.All in all, I'm tired of typing and it is approaching happy hour http://www.cherokeesrt8.com/forums/images/icons/icon10.gifsomewhere.
Bill

Great info, thanks!

Thanks for taking the time to do/write that. Reg. the IAT resistor, did you try anything lower than 45*? The largest gains I've seen in the past on other vehicles have come from 19*F or lower readings, still there were some gains with the 48* setting.
Also, did you by chance test the IAT with 100 octane? Just wondering if the PCM was pulling timing with the 93 and lower IAT temps.

Thanks for taking the time to do/write that. Reg. the IAT resistor, did you try anything lower than 45*? The largest gains I've seen in the past on other vehicles have come from 19*F or lower readings, still there were some gains with the 48* setting.
Also, did you by chance test the IAT with 100 octane? Just wondering if the PCM was pulling timing with the 93 and lower IAT temps.
The max that the resister would do was 45* per my laptop. That was the lowest temp it would send when dialed to the max. I believe I may unscrew the back, check what is in it and use this for a starting point. I agree that there is room to tweak it to serve this Hemi.

It was tested with the tank full of 100 and also 93. We tried every which way from dialing it with the staging lights to leaving it on.

I believe there is potential in this variable resistor for our other sensors also.

Oh hell, I'm going to remove the back now and post a photo so you can see it.
Bill

The max that the resister would do was 45* per my laptop. That was the lowest temp it would send when dialed to the max. I believe I may unscrew the back, check what is in it and use this for a starting point. I agree that there is room to tweak it to serve this Hemi.

It was tested with the tank full of 100 and also 93. We tried every which way from dialing it with the staging lights to leaving it on.

I believe there is potential in this variable resistor for our other sensors also.

Oh hell, I'm going to remove the back now and post a photo so you can see it.
Bill
Bill, Sounds like an uneventful, perhaps frustrating day. I know, I have been there. Gotta call out the big guns now. Get the intake as discussed, as for as cleaning up the casting roughness, I opted not to, to preserve velocity(not volume). I would not monkey with the MAP sensor output without an A/F calibrator thats fine tunable, especially with the stock cam & OEM ECM. IMO, Just my $ 0.2

[/LIST]2600 Torque Converter:
No difference, I will keep it installed:
I can no longer hook up therefore my 60’ times are no longer in the 1.7 range as Blackstallion runs. His will normally not spin the tires. With this converter, mine will spin no matter the launch technique. And Rockingham had the track so well prepared that it was VERY difficult to walk across the starting line in sneakers. I will post another thread on slicks / drag slicks as I need help and more mods do not make sense if I can not hook up with the current power. I did run the best time and mph though with the current mods.


[CENTER][U]Radiator cap (no kidding)
It leaks from the top gasket!
Wondered where the antifreeze was coming from at the cap area. Ha, I went over to Blackstallion and he had a baggie on top of his cap! I’m obviously not the only one with a leak during thrashing.All in all, I'm tired of typing and it is approaching happy hour http://www.cherokeesrt8.com/forums/images/icons/icon10.gifsomewhere.
Bill

Bill..... same issue I have had with mine since the headers and the 2600 stall converter. I spin them at will on the line. I make the mph but lose the ET due to traction loss...........fun on the street though!

I went to the Stant site to check on a heavy duty pressure cap,,,,,still looking.

Bill,
I thank you and your jeep for the testing! You just saved me some cash and labor. The GSM spacer was of great interest to me, kinda wishing for another low-cost but effective mod to do. But as stated before, the intake air isn't in the intake manifold long enough to really be effected? Guess I'll scratch that and the insulating gaskets off my list...

The max that the resister would do was 45* per my laptop. That was the lowest temp it would send when dialed to the max. I believe I may unscrew the back, check what is in it and use this for a starting point. I agree that there is room to tweak it to serve this Hemi.

It was tested with the tank full of 100 and also 93. We tried every which way from dialing it with the staging lights to leaving it on.

I believe there is potential in this variable resistor for our other sensors also.

Oh hell, I'm going to remove the back now and post a photo so you can see it.
Bill

Thanks and keep us updated. :)

Thanks Bill.That has to be the best mod reviews that I have ever read on any of the many Forums I have been on.Keep up the great work.

Thanks Bill.That has to be the best mod reviews that I have ever read on any of the many Forums I have been on.Keep up the great work.
Thanks! It is nice that not all of us have to waste $$ on mods that do not work as promised.
Bill

Thanks! It is nice that not all of us have to waste $$ on mods that do not work as promised.
Bill


Throw up your PP account addy. I wouldn't mind tossing you a few bucks for doing all the work. :)

Throw up your PP account addy. I wouldn't mind tossing you a few bucks for doing all the work. :)
GotStroke?,
No problem...it is sharing info back and forth. This is a very informative forum. For example yesterday, I didn't know a thing about stepped headers and now I know it looks like something that would not help my specific application.

I've taken the variable resistor for the IAT apart and it has stamped 5D1. On my ohm meter it registers from 0-10 ohms. I will try Radio Shack to find a variable resistor from 0-20 ohms that may reduce the temperature from the IAT even further.

Bill

this is some great info, thanks Bill!!

Radiator cap (no kidding)
It leaks from the top gasket!
Wondered where the antifreeze was coming from at the cap area. Ha, I went over to Blackstallion and he had a baggie on top of his cap! I’m obviously not the only one with a leak during thrashing.

Interesting. When I was at the SRT Track Exp, a few of the 6.1's in the Jeep and Charger did have antifreeze spray and stains all over when looking under the hood. Great write-ups!!