0-60 in under 4 seconds [Archive] - Cherokee SRT8 Forum

: 0-60 in under 4 seconds


timster
03-10-2007, 07:32 AM
I have been getting consistant 0-60 times at less than 4 seconds lately. The jeep just seems to get quicker with age.

I can't wait to take this beast to the track to see if my g-tech time correlate to 1/4 mile times/MPH

http://www.cherokeesrt8.com/gallery/watermark.php?file=242&size

http://www.cherokeesrt8.com/gallery/watermark.php?file=243&size=1

gculver
03-10-2007, 07:39 AM
Timster, Nice! Hammer it in the 1/4 and see what shes got!:D

promo718
03-10-2007, 04:23 PM
what's your setup timster?

GodfatherSRT8
03-10-2007, 04:28 PM
Those times are insane. Whats your secret timster??

ge2
03-10-2007, 04:38 PM
To quote the famous Nina Van Horn..... HOWY CWAP!

Razorecko
03-10-2007, 05:23 PM
Awesome time ! what mods and mileage ?

SRT8
03-10-2007, 06:19 PM
Sweet. :eek:

timster
03-10-2007, 09:16 PM
Only mod is the K&N drop in filter believe it or not.

As for mileage, I have about 6500 miles since November of 2006.. 6000 miles of which were done with a heavy right foot.. ;)

promo718
03-10-2007, 10:09 PM
i don't think your g-tech is accurate tim..try running on a track

Razorecko
03-10-2007, 10:27 PM
Yea hitting the track is a must to verify that accuracy - are you using the suction cup to keep the G still during movement ? and are you getting excessive wheel spin?
If its that accurate than you my friend have an extreme freak of engineering =)

StageFright
03-10-2007, 11:04 PM
I can't wait to take this beast to the track to see if my g-tech time correlate to 1/4 mile times/MPH

I seriously doubt it.

timster
03-11-2007, 07:08 AM
I think the g-tech has been giving me pretty consistant times. I also use the exact same strip of road when doing my runs. If you take a look at my photos in the members galleries, you can see how my times progressed from 4.33 sec down to where I am now. I can't say for certian the times are very accurate, but I'd say they are at least plus or minus 3 tenths of a second...and like I said, I am going to verify my beast at the track. We shall see what the truth is then..

If anything, the g-tech has shown that my jeep has gotten substantially faster than when I first got the truck..

here is the link to my photos..

http://www.cherokeesrt8.com/gallery/showgallery.php?cat=500&ppuser=2304

AlexT
03-11-2007, 07:12 AM
That would be incredible if it's accurate. Let us know what you find out at the track.

Alex

timster
03-11-2007, 07:19 AM
Yea hitting the track is a must to verify that accuracy - are you using the suction cup to keep the G still during movement ? and are you getting excessive wheel spin?
If its that accurate than you my friend have an extreme freak of engineering =)


I am using the suction cup, and I am not getting excessive wheel spin - I think the key to getting a good 0-60 time is to find a spot on the road where the jeep hooks up good - believe it or not different sections of road hook up differently. Also, all of my runs have been with the traction control off and in D

StageFright
03-11-2007, 09:16 AM
From past experience the G-Tech is just a toy to fiddle around with, take your truck to a dragstrip if you want to know what its really doing.

timster
03-11-2007, 09:26 AM
As soon as the weather warms up here in New England, I'll be at the track.

I think the g-tech is great for determining if your mods have any effect on performance without going to the track.

you say from past experience, Stagefright, did you own one of these "toys"?

Razorecko
03-11-2007, 11:02 AM
I am using the suction cup, and I am not getting excessive wheel spin - I think the key to getting a good 0-60 time is to find a spot on the road where the jeep hooks up good - believe it or not different sections of road hook up differently. Also, all of my runs have been with the traction control off and in D


I can definitley agree to that, the best i ever timed with my gtech was 4.36 but that was with spin off the line, and i cant use the traction control because it'll cut off too hard in the beginning - but when the warmer weather comes i'm going to find some fresh asphalt and give it another go and see the results - also i ran it around 6k miles and now it has over 10k so it'll be cool to see the changes.

GotStroke?
03-11-2007, 02:03 PM
I wonder how much of the increased performance (decreased 0-60) stems from the cooler/denser air this time of year.

Black_SRT8
03-11-2007, 02:30 PM
I wonder how much of the increased performance (decreased 0-60) stems from the cooler/denser air this time of year.


Ask Inferno SRT8 ;) (not hatin, great run)

GotStroke?
03-11-2007, 02:41 PM
Ask Inferno SRT8 ;) (not hatin, great run)

I have a feeling we'll be seeing more runs like his with similar mods in a few mos. :)

timster
03-11-2007, 09:55 PM
I wonder how much of the increased performance (decreased 0-60) stems from the cooler/denser air this time of year.


I wouldn't be surprised if it played a role. It was about 10 degrees when I did the 3.96 sec run. The runs I did tonight at 38 F got as low as 4.05 sec..

StageFright
03-11-2007, 10:41 PM
Stagefright, did you own one of these "toys"?

I thought about buying one awhile back, but a friend beat me to it and once I saw the inaccuracy of his (at the dragstrip) I passed on the G-Tech.

But the newer ones could prove me wrong.

Razorecko
03-11-2007, 10:59 PM
I wouldn't be surprised if it played a role. It was about 10 degrees when I did the 3.96 sec run. The runs I did tonight at 38 F got as low as 4.05 sec..

wow, how in the hell did you get traction ?? w/out my trac control I peeled out all the way to 2nd gear from a dead start at around 10degrees

timster
03-12-2007, 06:50 AM
I found that you need to drive around for about 10-15 minutes to heat up the tires. Most of my best runs were at close to operating temp - also the traction control needs to be off.

TORQUER
03-12-2007, 08:32 PM
My $.02. My Jeep is DEFINITELY faster now that I have over 13k miles on it.There is a noticeable difference from new to now. Practically all vehicles will get faster as they are broken in. (That's what I have read anyway). My best launches occur by auto-selecting 1, turning off TC and letting the the new TCM flash shift on it's own. I think your observations are correct that it is getting quicker but the actual #'s may not be quite accurate, but I hope they are!

live4skins
03-12-2007, 09:25 PM
wow, how in the hell did you get traction ?? w/out my trac control I peeled out all the way to 2nd gear from a dead start at around 10degrees

How the hell are your tires spinning into second gear? Wet pavement? B/c mine chirp first now and then but no peeling out, esp into second...

Thanks

sbkim
03-12-2007, 09:40 PM
I was reading through edmunds test drive and noticed one of the slowest 0-60 of 5.2 sec for GC SRT8. Can there be such a variance among the results here and other mags? I guess the fastest tested was 4.6 sec.

Black_SRT8
03-12-2007, 09:50 PM
^^ Edmunds' testing protocol mandates reporting the slowest number.

Razorecko
03-12-2007, 10:16 PM
How the hell are your tires spinning into second gear? Wet pavement? B/c mine chirp first now and then but no peeling out, esp into second...

Thanks


the weather was bout 20 deg/ w/out windchill and here in chicago the windchill will drop it to 0. And I hit it full throttle off the line w/out traction control and it just went side ways untill it shifted into second. When the car gets cold air and the ground is practically frozen its a night/day difference than when its anything over 40' out.

SRTJeep
03-13-2007, 07:37 AM
I hate to burst your bubble but these aren't that accurate. Drag Strip times are a much better test. I've tested G-Tech before on other cars. Hell they are made in MN. Gene

krabsheva
03-13-2007, 09:59 AM
I bought a G-Tech and was very excited when its numbers were within .2 sec of published specs for my GCSRT8. I then lent it to a friend at work to run in his Infiniti G35. He was all excited when he ran a 12.6 1/4 mile and 0-60 in the high 3s. His car is stock.

Both his 1/4 mile and 0-60 time are about 2 seconds faster then the published specs for his car.

Is his car the fastest Infiniti ever made ? Is my GCSRT8 the slowest? ?Or is the G-Tech just not very reliable?

Hopefully, it is the G-Tech.

sbkim
03-13-2007, 10:10 AM
My guess is that some do not know how to run Gtech properly. I would like to see how accurate the built in 0-60 timer is on the GC in 2008.

timster
03-13-2007, 11:42 AM
I bought a G-Tech and was very excited when its numbers were within .2 sec of published specs for my GCSRT8. I then lent it to a friend at work to run in his Infiniti G35. He was all excited when he ran a 12.6 1/4 mile and 0-60 in the high 3s. His car is stock.

Both his 1/4 mile and 0-60 time are about 2 seconds faster then the published specs for his car.

Is his car the fastest Infiniti ever made ? Is my GCSRT8 the slowest? ?Or is the G-Tech just not very reliable?

Hopefully, it is the G-Tech.

The road needs to be flat and strait or you will get inaccurate times. If you read the manual it describes what conditions are nescessary for an accurate time..

krabsheva
03-13-2007, 02:03 PM
According to him it was flat and straight, but who knows. He can't tell the difference between a 6 second 0-60 and a 4 second 0-60.

He also had it mounted on the extreme left side of the windshield where it was curved at a significant angle. Dunno what that could do to the readings.

The MSD Dashhawk sounds like a more reliable product, though it uses your vehicles sensors (through the ODB II port) to do its calculations.

BBLV
03-14-2007, 03:37 PM
Will spinning the tires up to a theoretical 60 MPH trick the comp into thinking you've already reached 60 MPH? Or is it more complex than that?

krabsheva
03-14-2007, 08:54 PM
I assume it ties into your speedometer. InfernoSRT8 swears by it:

http://www.cherokeesrt8.com/forums/showthread.php?t=2354

timster
03-14-2007, 09:28 PM
the gtech doesn't tie in to your speedometer.. see article below..

http://www.caranddriver.com/features/9380/do-inexpensive-performance-meters-work.html

2MCHPSI
03-14-2007, 10:52 PM
Don't you have to input your vehicle wieght into the G-Tech? If so, what are you putting in?

timster
03-15-2007, 07:03 AM
about 5000 - but for 0-60 you don't need the weight to be correct. the weight is to calculate hp and tq

2MCHPSI
03-15-2007, 11:16 AM
IIRC - My SRT8 weighed 4875 with me in it, and I weigh 165. I bet if you put in your weight plus 4710, your results would be different 0-60. ;-)

My old G-Tech meter DID give different results 0-60 when incorrect weight was entered. Give it a shot... worst case scenario I am wrong and you have one fast Jeep on your hands.

timster
03-15-2007, 12:10 PM
I'll give it a try.. :)

Ssse Ya
03-19-2007, 12:14 PM
0-60 in under 4 seconds :confused: on a 4800Lb. Gc Hmmm

2MCHPSI
03-19-2007, 03:20 PM
I'll give it a try.. :)
Any results yet?

Hallstar
03-19-2007, 06:16 PM
Mine hit a 3.94 and a best of 3.85 last night on the dashhawk and on the last run it timed out at 60.9 and on the 3.94 it went to 60.2 and it was hot by then...got up this morning and thought the cooler the better and the best thing I put down was a 4.07 at 187 degrees...not so happy!!! Those #'s are on a stock truck cause I'm waiting on an install date from HHP and after all that stuff is on maybe a 3.5 or less...we will see!!! It should be a lot faster cause my wallet will be a lot lighter!!!

timster
03-19-2007, 06:22 PM
Any results yet?

I took it out last night, changed around the weight from 3000 to 5000 to see if this parameter influences the 0-60 time. I didn't notice much of a difference.

As for the runs, the weather wasn't all that great so my best times were at about 4.15 with both weights. I will try again tonight to verify..

timster
03-19-2007, 06:33 PM
Mine hit a 3.94 and a best of 3.85 last night on the dashhawk and on the last run it timed out at 60.9 and on the 3.94 it went to 60.2 and it was hot by then...got up this morning and thought the cooler the better and the best thing I put down was a 4.07 at 187 degrees...not so happy!!! Those #'s are on a stock truck cause I'm waiting on an install date from HHP and after all that stuff is on maybe a 3.5 or less...we will see!!! It should be a lot faster cause my wallet will be a lot lighter!!!

wow those are good numbers..so this is with CAI and exhast?

Hallstar
03-19-2007, 10:09 PM
wow those are good numbers..so this is with CAI and exhast?
I sold the the B&B on Ebay and the CAI is sitting in the corner in the box it came in so I am all the way stock right now but I have about $6000.00 worth of parts sitting in my shop that I need to get put on:
DR HEADS & 268 CAM
2600 aps Stall
GSM Phenolic Gaskets
GSM Torque/Fan Mod
Ported Intake
Kooks Longtubes w/High Flow Cats
Magnaflow Cat Back
B&M Trans Cooler
Volant Cai
Problem is I can not find a shop to install these things for me...HHP Quoted me $3800+ one week after quoting me $2500 for the same procedure...they are crazy!!! Tune Time in NJ Quoted me $2700 which is the route I am going in April unless I find something in MD.

GodfatherSRT8
03-19-2007, 10:37 PM
Why the $1300 jump in price??

Hallstar
03-20-2007, 01:45 AM
I have no idea...I asked him and he changed the subject and for some reason he keeps on trying to sell me his cam that on lx's with cam is only showing 40-50 horsepower while the cam I have with the DR setup showed High 70's to low 80'shp and tq wise...do not know what is going on recommend someone and I will check them out!!!

AlexT
03-20-2007, 07:20 PM
HHP Quoted me $3800+ one week after quoting me $2500 for the same procedure...they are crazy!!! Tune Time in NJ Quoted me $2700 which is the route I am going in April unless I find something in MD.

Have you tried breaking it down maybe to them just doing heads and headers? The rest should be easy diy's.

Alex