rwhp predictions?
11-10-2011, 11:34 AM
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rwhp predictions? In the process of building up my buddies 04 gto. Diamond pistons, eagle rods, afr 210's out of the box, fast 102 intake, 100mm tb, 100mm mass air, svede otrcai, 42lb injectors, fast fuel rails, spec'd comp cam, speedinc pushrods, kooks long tubes, magnaflow cat-back, spec stage 3+ clutch, 1 piece ds,and level 5 axles. Lots of misc parts.. im kinda new to the gm crowd, but from what I can gather it should be around 450rw? Its still gonna be 346 ci
11-10-2011, 06:07 PM
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since its a six speed car you may hit 450ish but i wouldnt put my money on it. id say more like 425ish.
if it were my build, id save the money on the level five axles and go with a level one or two in the anti hop setup and spend the extra on a good port job of the fast intake.
if it were my build, id save the money on the level five axles and go with a level one or two in the anti hop setup and spend the extra on a good port job of the fast intake.
11-10-2011, 06:23 PM
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It will also depend a large amount on the dyno. I've seen differences on mine of 415 to 460 depending on the dyno. Just take it to a track, log some traps, find the DA and see where you're at.
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11-10-2011, 06:39 PM
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We'll definatly be taking it to the track. He wants to outrun my mustang, but I dont think its gonna happen because im running 11.00's all motor with a 150 shot if need be. 
11-28-2011, 06:30 PM
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It's going to make at least 425 to the ground with a potential of up to 450-455 range. I don't know about you but id rather set reasonable goals and then if you exceed those goals be happy with it. Instead of saying well a few guys made 450+ out of their 346 so anything less than that is basically a disappointment. He will be very happy with the car and the numbers if the build goes well.
11-28-2011, 06:38 PM
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Also, no way in hell you should be guessing 400. Iv seen stock ls1's with a cam swap, cai, and longtubes putting down anywhere from 385-405 depending on dyno and air. If he puts everything listed in the original post it will easily be in the 435-450 range imo.
11-28-2011, 07:21 PM
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Predictions were requested.......so that is all I provided. It was kind of a wide open request without providing cam specs and my guess was based on the GTO drive train being pretty parasitic (eats between 18 and 20% of the engines power). You cant compare it to an LS1 in a vette or F body, the numbers will be less.
Also, it is well documented that the cathedral port FAST 102 does not show any significant gain over the LS6 intake on stock cubes. While the list of parts may be impressive the majority of them add durability and not power.
I hope the numbers end up being more and I am sure the owner will love the gains regardless of what the numbers end up being.
Also, it is well documented that the cathedral port FAST 102 does not show any significant gain over the LS6 intake on stock cubes. While the list of parts may be impressive the majority of them add durability and not power.
I hope the numbers end up being more and I am sure the owner will love the gains regardless of what the numbers end up being.