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Turbo LS1 dyno estimate...

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Old 05-21-2012, 09:48 PM   #1
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Default Turbo LS1 dyno estimate...

Figured i would get a feeler for what to expect..

2000 Trans am, 6 speed, 9 inch

forged 370 CID
stock 317 heads (dual springs etc)
speed inc tu2 cam
LS6 intake/ ported TB

Dual pumps with -8 feed/ -6 return and 80lb injectors

Precision PT76GTS turbo
Kentucky turbo front mount
FMIC setup
dumped downpipe

My waste gate spring is 11 psi, i plan on turning it up to 15-17 psi

whattya' think?

2000 Trans Am WS6 - Twin 6262's | 370 | 4L80 |
1995 Mustang - S476R | LQ4 | Th350 |
2009 GMC Sierra

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Old 05-21-2012, 11:42 PM   #2
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mid 600s-700 wheel. Depends on timing/air. What does a PT76GTS run out of steam at? Is that billet wheel?

we did my buddies 370, "boost cam", stock headed, s475 a2w setup a couple months ago. Made 710RWHP on 13psi. This is through a locked 4l80 and dana60 rear with 3.73 gear. It will make 709-710 pull after pull.

I think the s475 with cast wheel is close to running out of steam on us though
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Old 05-21-2012, 11:52 PM   #3
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Im going to say 695 HP. The 9 inch will eat up some power.
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Old 05-21-2012, 11:58 PM   #4
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My 4.8 makes 650 on 17psi through an 80e lol. A 370 ought to see 800s with that turbo at 17psi, otherwise your tuner is doing something wrong. That's assuming you have good fuel...

2012 Chevy Cruze...turbo warpig
2004 Silverado RCSB...with power adders. All slow and no go.
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Old 05-21-2012, 11:58 PM
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