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760hp/745tq Stock Bottom LS1 (TC78 to PT7675)

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Old 04-30-2013, 02:26 AM
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I know "gimmeluvin" ran 12 psi on his forged 347 with the 76gts (pt7675) and was at 650 hp... I would say its safe to say 650-800 hp would be easy for that turbo
Old 04-30-2013, 05:39 AM
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Saw Brian put this on Facebook yesterday, very nice numbers!
Old 04-30-2013, 07:37 AM
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Awesome results. I'm really looking forward to see what I put down with my pt7675. On Another note if your 80's were maxed out then I'm gonna be in trouble bc I'm still using my 60's from when the car was procharged. I Guess I'm gonna have to upgrade to 80's
Old 04-30-2013, 07:40 AM
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What are you running for a fuel system in the car?
Old 04-30-2013, 07:41 AM
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Nice number man. Congrats.
Old 04-30-2013, 08:15 AM
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Originally Posted by Jetn3
What does your exhaust consist of and what size after the pt7675?
3in DP, dumped right after the kmember

Originally Posted by 02sleeperz28
Very nice numbers! Maxing out the 80 lbs, wow! What was your duty cycle at that power level? What fuel system do you have?

Does anybody know what power level the pt7675 can handle comfortably without maxing it out? 800, 850rwhp?
Ive got a lonnies double pumper kit(twin gss340s). -8an, -6an return, A1000 fuel reg, Fast rails with 80lb injectors. He said the injectors were high in the 90s for duty cycle.

I can see this turbo making over 900, if i had the fuel/bottom end for it. 18-22psi would be nuts!

Originally Posted by 02LS1ram
What are you running for a fuel system in the car?
See above.

Thanks for all the compliments guys!
Old 04-30-2013, 01:01 PM
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Nice...I'm hoping for somewhere over 600 RWHP on my 2002 LS1 with 241's and E85 using a Turbonetics T78
Old 04-30-2013, 04:48 PM
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Originally Posted by evo462
Nice...I'm hoping for somewhere over 600 RWHP on my 2002 LS1 with 241's and E85 using a Turbonetics T78
should have no problem as long as you arent afraid to throw a little timing in it!
Old 04-30-2013, 05:41 PM
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That is damn impressive. Makes me really look forward to seeing what my 370 T7875 setup will do on 20lbs...
Old 04-30-2013, 05:49 PM
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next time it goes on the dyno. pull the intercooler and put a pipe in place of it. im interested in what the ebay intercooler is robbing you
Old 05-01-2013, 02:05 PM
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The 7875 might be a lil small for a 370, you might have some back pressure issues.

As for the intercooler, id be interested too but the next time it goes on the rollers will be for a dyno day. Probably won't have time.
Old 05-01-2013, 03:17 PM
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those be some good numbers is that on pump gas?
Old 05-01-2013, 03:44 PM
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Originally Posted by 78buturbo
those be some good numbers is that on pump gas?
i believe he is running e85.. at least thats what it says on his sig.
Old 05-01-2013, 03:52 PM
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Originally Posted by evo462
Nice...I'm hoping for somewhere over 600 RWHP on my 2002 LS1 with 241's and E85 using a Turbonetics T78
My 5.3 put down 587rwhp at 12.8 psi with a little mpt70 through a th400 with 91 octane pump gas, windshield washer fluid and 14 degrees timing. 600 will be no problem.
Old 05-01-2013, 06:28 PM
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Originally Posted by Ryans99ls1
The 7875 might be a lil small for a 370, you might have some back pressure issues.
With the new wheel from Turbonetics I think it will be real good for that CI. Yea I would rather run an S480 or something but the 7875 bolts right up w/o modifying anything. On a 1.15 a/r I think it will work well. We'll see. In the meantime, more videos!
Old 05-04-2013, 10:13 PM
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video. 720 on this pull, pull after this was 760 but i didnt get a video, im sure one will pop up soon.



These were also todays dyno day results.


car has made a lot of 3-4th gear WOT pulls and still kicking!



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