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Old 11-19-2009, 12:49 PM
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horse power torque estiment.72 chevy

hey, im new 15 im building A 72 chevy c-10 step side.tore it down and put about 5000 into body and frame. i have a 400 with stock bottom end.have no clue what cam is sounds like a 292 magmum.i kno its not but it is preaty big and sounds like that.and i have 1.6 roler rockers on it.heads are double hump with 1.86 intake and 2.02 exaust.have big tube headers.have 3 1/2 inch exaust should flow fine.i have a i think 85 corvett tpi intake on it.i read up on the stock injectors.there 24#.has electric fan.cold air intake.stock tune and chip.i rad up about big cams on the maf style tpi (early style).and the book from painless wireing said that it will be fin with the wondering if anyody could give me a rough estiment on horse power and torque? also i have a gm4 turbo that i made a header for it and had it mountded.just couldent find all right parts for the turbo and took it offf.but will tat turbo give enough boost?its a 94 gm4 deisel turbo.

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Old 11-19-2009, 12:56 PM
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450 Hp

400 Torque
BiG WHiskey
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Old 11-19-2009, 02:17 PM
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Originally Posted by ChevyThunder
450 Hp

400 Torque
Where did you come up with those numbers? This kid clearly doesn't know (or understand?) what he has. And the stuff he did list (that he isnt even sure of) is a total mish-mash.

andrew400, the combination you described barely makes any sense. Take some time to actually look at what you have. Guessing at a cam size means nothing. What is your compression ratio? No SB Chevy will have 1.86 intake and 2.02 exhaust valves. Exactly which heads do you have?

There is no way anybody can give you a worthwhile estimate with what you have listed.
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Old 11-19-2009, 02:33 PM
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a picture or 2 would help identify everything
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Old 11-19-2009, 08:58 PM
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something is definitely wrong with your heads. Why would someone put bigger exhaust valves than intake valves? And if its a stock tune with a supposed 292duration cam, that is not gonna run so hot. Definitely figure what you have in your engine. If your gonna run fuel injection on a modded motor you are gonna have to get it tunned and are gonna need to know exactly whats in there like, cam, compression and such. If you are gonna run a stock tpi intake i would put an rv or towing cam in it. those intakes aren't much for high rpm breathing(look how long the runners are). Figure out whats in your motor and the guys here will be able to help you.
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