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

Look what I found!!!!!

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Old Mar 17, 2009 | 01:12 PM
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Default Look what I found!!!!!

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



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Old Mar 17, 2009 | 01:16 PM
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Damn 505 HP Love it. A lot of cake will have to save for this.
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Old Mar 17, 2009 | 01:45 PM
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Hey, we can save 5 bucks. lol... Our cars with turbos must be incredible...

-Mike
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Old Mar 17, 2009 | 01:46 PM
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I love the sound of a turbocharged V8
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Old Mar 17, 2009 | 01:53 PM
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X2 on that Panther...

-Mike
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Old Mar 17, 2009 | 11:26 PM
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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
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Old Mar 18, 2009 | 12:06 AM
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up in smoke
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Old Mar 18, 2009 | 12:09 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
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Old Mar 18, 2009 | 12:12 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
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Old Mar 18, 2009 | 12:26 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.
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Old Mar 18, 2009 | 08:22 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.
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Old Mar 18, 2009 | 09:13 AM
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Can our motors take 7-8psi stock? I wonder how long it would last boosted.
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Old Mar 18, 2009 | 09:14 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.
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Old Mar 18, 2009 | 12:47 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
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Old Mar 18, 2009 | 01:25 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.
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Old Mar 18, 2009 | 01:28 PM
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Can't give out all our secrets..lol
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Old Mar 18, 2009 | 03:19 PM
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Im sure i can quess some of it.
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Old Mar 18, 2009 | 05:18 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; Mar 18, 2009 at 05:19 PM. Reason: Screwed up a smiley...
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Old Mar 18, 2009 | 08:21 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.
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Old Mar 18, 2009 | 10:46 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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