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Mar 4, 2006 | 09:58 PM

JerikSS

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8psi

What are the typical gains that come from a 8psi?

i have a turbo cam 232/228 on 115lsa
lq9 heads and supporting mods

goal is 550/rhp/rtq

Mar 4, 2006 | 10:54 PM

JerikSS

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where can I get a 8psi spring????/to serve as a boost controller

Mar 5, 2006 | 07:40 AM

KAOS

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9-10 psi got me 540 on a stock bottom end and 6l heads. you should be close

Mar 5, 2006 | 04:30 PM

JerikSS

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anyone???

Mar 5, 2006 | 05:01 PM

nossty1

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I made about 530rwhp with 8psi

Mar 6, 2006 | 10:16 PM

whynot

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divide your n/a hp by 17, times that by the pounds of boost, then add your n/a number.

ie. 350 hp n/a on 12#'s

350/17 = 20.5X12 = 247+350 = 597

Mar 9, 2006 | 04:14 PM

pdanrichey

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Quote:

Originally Posted by whynot

divide your n/a hp by 17, times that by the pounds of boost, then add your n/a number.

ie. 350 hp n/a on 12#'s

350/17 = 20.5X12 = 247+350 = 597

I'm not sure that's a "scientifically" proven formula. I saw another guy try to say that if you divide your N/A power by 14.7 (1 bar) then multiply that number by your boost + N/A power = Horsepower.

I don't think either one is correct. Everyone knows as well as I do that the LS1 engine much like any other engine is going to vary in power and vary with out it takes power adders...ie, turbo, intake, exhaust...etc.

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Mar 11, 2006 | 06:49 PM

whynot

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Quote:

Originally Posted by pdanrichey

no, it's not exact, because every type of forced induction has differant paricitic loss. in a perferct world, it would be 14.7 yes, but you have to figure in paricitic loss, which is higher for superchargers than turbos, but both still have loss. it is just a close guess going with the extra 2.3.