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Old 06-28-2011, 08:10 PM   #1
HufferSS
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Strongest Heads/CAM cars?

What are these LS3 motors capable of to the rear wheel with just H/C.

How about stroker NA applications.....who has what? We see a lot of FI big HP cars...what about NA builds?

What's out there?
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Old 06-28-2011, 08:26 PM   #2
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i'm at 481 with heads and cam with bolt ons. i think their is a member on here with over 500 at the wheels n/a stock displacement i think.
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750/641 rwhp/rwtq
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Old 06-29-2011, 11:09 AM   #3
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We have had a few cars go over 500rwhp but it definitely takes an optimized setup. You will want to make sure you have at least a ported LS3 intake, a good cold air intake, and an underdrive pulley. Of course the heads/cam has to be pretty aggressive to achieve those kind of numbers.
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Old 06-29-2011, 01:11 PM   #4
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Have yet to see a TON of H/C/I cars, a few and some over 500-520rwhp depending on cam. The highest was OrangeSS or something like that, it is a LG car, and has the G6X3 cam, and the others are TSP cars that have made the most rwhp that I have seen. But also make sure to find out if they milled the heads to bump power also, cause it does make a difference but the pistons have to be flycut also to do this with a larger cam. There are others out there, but we are talking FULL bolt on car, with FAST intake, NK TB ect.

I am running a TSP cam, Kooks headers, Roto-fab intake, Ported intake and Ported TB, which neither of the intake/TB added power and also full 3" exhaust. I am currently waiting on heads from TSP, and will have the pully and heads, and FAST intake and NK TB put on and dyno tuned and see what happens. The only other thing I can bolt on is the Metzler water pump and then as for bolt ons I am tapped out. The car before dyno was 475rwhp, so I am shooting for over 500. Then if not Metzler to finish it out. Then continue on with my build, the only issue is I have 22's on the car now, so lost some power via the 22's but how much I have no idea.

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Old 06-29-2011, 02:37 PM   #5
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I believe OrangeChevyII made the most @538 rwhp 498rwtq. That was a max effort combination with the LG G6X3, LG stage 2 heads a Fast 102 and NW 102 tb. It was a factory ls3 head milled .020. That same heads/cam combo is now on a l99 auto car that makes 505rwhp (head was milled another .010 with a .060 valve cut in the piston).


Tsp's "500 rwhp" heads/cam black car made 482rwhp when it made it's way to Dallas.

To give Tsp some credit I tuned a auto car with the 231 cam and tsp heads that made 482 rwhp.
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Old 06-29-2011, 02:54 PM   #6
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Quote:
Originally Posted by Sam88gta1 View Post
I believe OrangeChevyII made the most @538 rwhp 498rwtq. That was a max effort combination with the LG G6X3, LG stage 2 heads a Fast 102 and NW 102 tb. It was a factory ls3 head milled .020. That same heads/cam combo is now on a l99 auto car that makes 505rwhp (head was milled another .010 with a .060 valve cut in the piston).


Tsp's "500 rwhp" heads/cam black car made 482rwhp when it made it's way to Dallas.

To give Tsp some credit I tuned a auto car with the 231 cam and tsp heads that made 482 rwhp.

Time will tell, in the comming weeks what I end up with via TSP products, the only part that will hurt me is I am not going to just put the stocker rims/tires back on just to dyno the car..
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Old 06-30-2011, 04:00 AM   #7
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I have a naturally aspirated stroked LS3 making 703 hp (610 to the wheels), luv it! You can checkout most of the build in the southwest forum under ABQ Newbie.
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Old 06-30-2011, 04:36 AM   #8
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Mine makes 505 with barely touched heads (port match to intake, valve job, untouched chamber), TSP 231/236, and full bolt ons (everything but EWP and a fast). I wouldn't be surprised to see 520-525 out of it with some nice CNCd heads, a 102intake/tb, and a compression bump
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