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Turbo LS1 GTO 517whp & 53X trq on 8psi

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Old 03-28-2009, 07:52 PM
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Default Turbo LS1 GTO 517whp & 53X trq on 8psi

Buddies LS1 GTO with STS kit just some new numbers.

DynoDynamics dyno

Car Specs:
2004 GTO LS1 6-speed
STS kit with Turbonetics GT67 @ 8psi
Snow performance stage 2 meth kit
Ported TB
Textrilla Clutch
39lbs injectors
No FMIC

517whp & 53X trq.

on 5.5psi car put down 445whp don't remember the torque and that was without a ported TB.

Will post dyno sheets as soon as he gets them.
Old 03-28-2009, 08:04 PM
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bad ***! love them GTO's i'd own one if they had a bigger trunk or a topless feature!
Old 03-28-2009, 08:31 PM
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I am seriously considering one right now. Great car, and the interior is worth ALOT IMO.
Old 03-28-2009, 10:14 PM
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Not too bad! Mine with stock LS2 and the 70mm made 630rwhp. How much is the difference between a dynojet and a dynodynamic dyno?
Old 03-29-2009, 10:23 AM
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Nice!

Good to see more GTO rear-mounts making some power.
Old 03-29-2009, 10:28 AM
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how does it drive? I have debated picking up a STS kits up, just wondering about "lag". STS told me there would barely be a difference between a front and rear mount kit, but before I did anything I wanted to hear what others had to say.
Old 03-29-2009, 10:36 AM
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this is great for me to know. as i am currently building a t70 turbo setup on my 2004 ls1 gto. a4. this makes me very happy cuz 500whp is what i was going for. im using 60lb injectors though. and a walbro 255 and a BAP
Old 03-29-2009, 11:26 AM
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Originally Posted by 04pontiacgto
how does it drive? I have debated picking up a STS kits up, just wondering about "lag". STS told me there would barely be a difference between a front and rear mount kit, but before I did anything I wanted to hear what others had to say.
the STS kit is known to have lag simply because of the placement of the turbo. you can combat the lag if you have an automatic, wrapped y pipe and stock manifolds. 6 speeds can get boost pretty quick, but nothing like the automatics can

front mounts will always spool faster
Old 03-29-2009, 02:34 PM
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he also has test pipes on the car and the exhaust is not wrapped.

the lag is really minimal and the car pulls really hard



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