LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Look what I found!!!!!

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Old 03-17-2009 | 02:12 PM
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http://www.turbo-kits.com/grand_prix...urbo_kits.html

http://www.turbo-kits.com/impala_ss_turbo_kits.html

http://www.turbo-kits.com/monte_carlo_turbo_kits.html



Old 03-17-2009 | 02:16 PM
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Damn 505 HP Love it. A lot of cake will have to save for this.
Old 03-17-2009 | 02:45 PM
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Hey, we can save 5 bucks. lol... Our cars with turbos must be incredible...

-Mike
Old 03-17-2009 | 02:46 PM
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I love the sound of a turbocharged V8
Old 03-17-2009 | 02:53 PM
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X2 on that Panther...

-Mike
Old 03-18-2009 | 12:26 AM
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Interesting... the red font at the bottom underrates the power we saw from the prototype production-ready kit (prior to you guys tuning it for more power). It was around 450 WHP at that time... this ad says it adds 150 WHP, which means that it would be ~240 + 150 = 390 WHP... Shucks, the other 60 WHP disappeared
Old 03-18-2009 | 01:06 AM
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up in smoke
Old 03-18-2009 | 01:09 AM
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They probally not using wheel HP 303 + 150 hp is 450. Since 450hp is what they put down on the dyno. Assuming most of use are around the 240-250whp. Thats a 200 WHP gain. Figure 20% drivetrain loss at 450 the car would be making 540 Crank HP. pretty good. If they really did get it to put down 505whp it would be 606 crank HP
Old 03-18-2009 | 01:12 AM
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505/.8 = 631 crank.
450/.8 = 562 crank

I just gotta pay off my car first; tranny build, kit, and tuning would be over 10k haha
Old 03-18-2009 | 01:26 AM
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DUGH lol i was doing the whp time .2 lol the adding that back on top of the whp to get crank. I like your numbers better. Mine when u know the crank HP lol trying to figure whp.
Old 03-18-2009 | 09:22 AM
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The kit in stock form will give an extra 150hp, however you want to spin it.

With the 8psi you'll get about 450hp at the crank, maybe more but these are conservative numbers. We got 505whp at 12PSI but we did a LOT of tinkering etc.

I'm anxious to see what the guys who got the turbo get when they dyno.
Old 03-18-2009 | 10:13 AM
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Can our motors take 7-8psi stock? I wonder how long it would last boosted.
Old 03-18-2009 | 10:14 AM
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The motor will be fine, that's not what you have to worry about, it's how you drive the car and how long the trans will last.
Old 03-18-2009 | 01:47 PM
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Originally Posted by GXPJAY
The kit in stock form will give an extra 150hp, however you want to spin it.

With the 8psi you'll get about 450hp at the crank, maybe more but these are conservative numbers. We got 505whp at 12PSI but we did a LOT of tinkering etc.

I'm anxious to see what the guys who got the turbo get when they dyno.
Exactally how much tnkering Jay. i wanna know what u did
Old 03-18-2009 | 02:25 PM
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Transmission failure is implied! That trans can't even take stock power reliably.

Originally Posted by GXPJAY
The motor will be fine, that's not what you have to worry about, it's how you drive the car and how long the trans will last.
Old 03-18-2009 | 02:28 PM
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Can't give out all our secrets..lol
Old 03-18-2009 | 04:19 PM
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Im sure i can quess some of it.
Old 03-18-2009 | 06:18 PM
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I'm just sad about the 60 HP missing from the early CT prototypes... I like every last drop of HP It costs the same for 60 HP less!!!

Last edited by ZyroXZ2; 03-18-2009 at 06:19 PM. Reason: Screwed up a smiley...
Old 03-18-2009 | 09:21 PM
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Originally Posted by turbotaguy
Can our motors take 7-8psi stock? I wonder how long it would last boosted.
The Gen IV LS block can handle a lot of power. The LS2, the other Gen IV engine, handles being blown without any problems. I'm not sure how high up the Vette or GTO guys have had to go to blow their LS2s up, but I'm pretty we'll burn up the front wheels and trans long before we hit that point.
Old 03-18-2009 | 11:46 PM
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There was a side note in the GMPP book that the regular LS motors would be good to 500-600hp with the pistons in them.


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