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Low CR 402 n/a numbers...

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Old 08-25-2006, 01:09 PM
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Default Low CR 402 n/a numbers...

What would a low compression 402 built for boost turn n/a number wise with a n/a size cam? say like a 9:1cr or so with say a 24x/25x .6xx cam in it?

(of course i would swap cams for a turbo grind when the time came)

trying to get some ideas on a turbo set up and at least have decent power n/a till i can get the turbo kit.
Old 08-25-2006, 01:15 PM
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well with my 9.5cr 348ci i did 400hp with a n/a tune (lots of timing) and a 230/234 .581 .588 cam i would think you would do a little bit more than me.
Old 08-25-2006, 01:21 PM
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yeah..im just cooking something up right now but looking to see what the hp would be around...it might be a lil bit before i can do the turbo after the motor so i dont want it to be a total dog unless it just has to.
Old 08-25-2006, 01:24 PM
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pure evil put down like 430 rwhp or 450 rwhp NA before he ran his turbo kit.

I think he's at 8.5 or so.
Old 08-25-2006, 01:27 PM
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spray it! lol
Old 08-25-2006, 01:35 PM
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Originally Posted by 2000 Tran Zam
pure evil put down like 430 rwhp or 450 rwhp NA before he ran his turbo kit.

I think he's at 8.5 or so.
cool....yeah it will def have a big cam in it before i swap to a more blower friendly grind....
Old 08-26-2006, 09:09 AM
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My NA 8.3:1 #s are in the sig.
Old 08-26-2006, 10:12 AM
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i put down 430 with 9;2;1 throught a A4
Old 08-26-2006, 08:18 PM
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cool guys...thats what i was needing to see.....thanks!
Old 08-26-2006, 08:59 PM
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402ci ,9-1 comp,AFR 225's ,232/236 on 114 =440hp/440tq
408ci,8.5-1 comp,AFR 225's,218/230 on 115 =430hp/450tq
427ci,8.8-1 comp,ET225's,234/238 on 114=465hp/455tq

There are a few before the FI went on
Old 08-26-2006, 10:33 PM
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cool...i figured if i went with a big enough cam in a 400+ci it would still be pretty decent till i could get the turbo stuff going. Thanks for all the input guys!



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