optimum compression ls3416 boost

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Jan 15, 2015 | 09:51 PM

quickvert1

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Staging Lane

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From: Clinton,CT

optimum compression ls3416 boost

9.1
9.5
10.1
10.5

blower

Last edited by quickvert1; Jan 15, 2015 at 10:59 PM.

Jan 16, 2015 | 07:26 AM

SwampWS6

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From: Ballwin, MO

I personally would go with either 10:1 or 10:5 CR.

You could possibly make more hp at lower boost. So MY theory is at 6lbs of boost you could make the same or more hp as someone who has 9:1 CR at 10lbs. I would run 10:5 and run good fuel.

Jan 16, 2015 | 09:47 AM

Forcefed86

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From: Wichita, KS

what application? What fuel? What blower?

Whatever compression allows for the maximum amount of boost your blower is capable of with the fuel your running would be “optimum”.

Jan 16, 2015 | 09:55 PM

quickvert1

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Staging Lane

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From: Clinton,CT

im freshening up my 416 novi 2ooo...
had a choice of 9.7 or 10.2 wiseco
i went 9.7 pistons and the wider pic for tuning
engine was 9.5 w crappy mayle pistons

Jan 22, 2015 | 05:46 AM

THADD

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From: Durham

10.2:1 on c16

Jan 22, 2015 | 06:09 AM

rkreigh

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fuel choice, cam, combustion chamber, piston design all play into this so there is no simple answer, only pay yur money and takes yur chances

here is my 02

first decide on the fuel and cam,

I like 10-1 on pump gas, and 11-1 or so on e85 for a street machine

compression ratios on race gas can be similar to e85

I ran 9.5 to 1 on my twin turbo ttix car which allowed me to make 600 to the wheels on pump gas and 800 on meth

it's an ez combination that's held up well