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STS on a 2004 GTO almost done

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Old 12-17-2004, 10:32 PM
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It's hard to tell what the stall is now.It will stalle to 3000rpm when heavilly footbraking it though.The Turbo is a T67 with .81 housing.The car is stupid when boost comes in.I've already spun it pretty bad through 3 gears
Old 12-17-2004, 11:01 PM
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Ok now finish up and give us some slips!

Oh, and maybe this is a stupid question but, why is the power that was down low stock no longer there?

Last edited by phobos512; 12-17-2004 at 11:07 PM.
Old 12-18-2004, 12:10 AM
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Originally Posted by phobos512
Oh, and maybe this is a stupid question but, why is the power that was down low stock no longer there?
No, it's a good question. The best I can explain it is - on the left you see where both curves start out at the bottom left? The runs weren't all started at the same RPM. Stock ~2600 RPM Turbo1 ~2800 RPM Turbo2 ~3100 RPM. It takes a second for the engine to switch from part throttle to WOT. It's very visilbe on the NA run. You see sort of a hump, then the curve takes form. You don't really see it on the turbo runs much because the turbo is spooling up. You don't instantly get 8 lbs of boost it builds. If all the runs were started exactly the same time they would be closer. I hope that answers it. The runs weren't started at the same RPM, and the turbo produces a different curve. I don't think you really lose any.
Old 12-18-2004, 12:52 AM
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You win this one Slowhawk....perhaps we can add a bottle and give ya a run.
Old 12-18-2004, 12:53 AM
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what does sts mean? Are you putting a supercharger on the car?
Old 12-18-2004, 03:32 AM
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Yea but what are ur cam specs. I love your kits, but I think its at a disadvantage that these numbers arent with a stock cam - or what was the baseline with the cam. I really only bring this up because many people dont like your kits because a few people take them to the track and doesnt see AWESOME times, I really dont think its fair for them to speak against your kits, so just looking for all the information. =)
Old 12-18-2004, 03:37 AM
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Originally Posted by SteveMac_LKP
what does sts mean? Are you putting a supercharger on the car?
Squires Turbo Systems

The revolutionary Rear-Mount Turbo System that has a fantastic love/hate following. The owners love them and non ownders hate them Hahaha


Don, I can understand the converter thing. My TQ converter was bought for my truck when it was basically stock IE 240rwhp, after breaking somewhere into the 500rwhp area I am not sure where the hell it stalls at anymore. It flashes higher than 3k for sure but then the boost comes in so hard that it's hard to tell anymore because you're instantly watching the road and adjusting the wheel so you can maintain that cool "car driving sidways yet traveling straight" burnout. LOL
Old 12-18-2004, 07:28 AM
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I don't have specifics on the Cam in the car since I didn't install it.I will say the car is idling at 600rpm so the cam can't be very big.This car has already run 12.4 at 112mph before it came in the shop.I know it will run low 11's,possible high 10's with the owner driving it

The power differences down low is just me running the dyno.I only look at A/F's and don't really pay attention to where I'm starting,,sorry
Old 12-18-2004, 07:48 PM
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Originally Posted by Deamon2002
Wow that looks great, I posted a few days ago about STSing an '05 GTO, looking from the piping under the car the only thing STS will have to change is the tune, all the hardware from the '04 looks like it should marry up just fine to the '05. And if STS does make a kit for the '05 man it is sooooo mine, I'll go get a GTO and a month later slap on the STS. I can only image the numbers. I ran the math the other day and it should be around 540HP to the ground on the '05. Looks like you should make about 460+HP, am I in the ball park? or is yours a bit madd man?

How will the higher compression on the 05's handle the turbo?
Old 12-18-2004, 08:05 PM
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nice numbers..hope my trucks numbers are that good after i get my 44# injectors in and retune...
Old 12-18-2004, 09:09 PM
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Nice Don!
Old 12-18-2004, 11:07 PM
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Originally Posted by Spellbound
How will the higher compression on the 05's handle the turbo?
I don't think it will effect it too badly, maybe increase the need for intake air charge cooling via intercooler or methanol injection. I have the '04 LS1 GTO rated for a ratio of 10.5:1, and the '05 LS2 rated at 10.9:1. You also have to take into consideration that the LS2 is also a 6.0L and not a 5.7L. The LS2 is a highly refined engine, I believe and this is just my opinion, that the LS2 will take to boost very well, except into higher boost levels, like 7 or more psi. It revs higher, which is good for the turbo power band, has more displacement, and for the realy crazy ones a simple change of the rods and a bigger turbo will surely fill their pants to their little hearts desire.
Old 12-19-2004, 09:02 PM
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looks clean
Old 12-20-2004, 09:48 AM
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nice Don, make sure we get the owner to post after he's run at the track.
Old 12-20-2004, 10:15 AM
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Originally Posted by Slowhawk
I don't have specifics on the Cam in the car since I didn't install it.I will say the car is idling at 600rpm so the cam can't be very big.This car has already run 12.4 at 112mph before it came in the shop.I know it will run low 11's,possible high 10's with the owner driving it

The power differences down low is just me running the dyno.I only look at A/F's and don't really pay attention to where I'm starting,,sorry
what mods did it have prior to the sts kit?
Old 12-20-2004, 10:36 AM
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looks great but for a sleaper look i think you should get a set of stock tips and weld them onto a eurostyle tip
Old 12-20-2004, 11:01 AM
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only mods prior to the turbo kit

yank stall converter
small turbo cam
drag radial
12.4@ 108 mph
Old 12-20-2004, 12:46 PM
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Don, what were the 4 PSI numbers?
Old 01-05-2005, 10:14 PM
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Cant wait to hear/see it go someday.
Phil, Ready for your kit yet? Call me, lets have it done.
Originally Posted by PHiL2
what mods did it have prior to the sts kit?

Last edited by Jammer; 01-05-2005 at 10:26 PM.
Old 01-06-2005, 07:59 AM
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Originally Posted by Jammer
Cant wait to hear/see it go someday.
Phil, Ready for your kit yet? Call me, lets have it done.
Well why dont we just slap one on!


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