Comp. Ratio for this boost application...
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 70
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Comp. Ratio for this boost application... What compression would you run.
I am going to build a 408 to run NA until i can run boost. I want to run up to 20-22 lbs of boost when all said and done. I plan on running on E80/E85. What compression would you build the motor for 9.0?
I am going to build a 408 to run NA until i can run boost. I want to run up to 20-22 lbs of boost when all said and done. I plan on running on E80/E85. What compression would you build the motor for 9.0?
9.0 would be pretty good I think especially on e85 stuff is the HOTNESS for boosted engines!! Could likely even go 9.5 on e85. 8.5 seems more for pump gas and bigger boost. I went 9.5 but don't plan on much past 15psi.
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10.0-10.5 will be good.. but why stress on a boost level like 22 psi its just a number i will do the math for my set upi beleive it was 9.5-1 with 72 cc heads and i went with 64cc heads and spoling was not a prob just got to tune it right and take your time
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 70
Likes: 0
I just want to maximize power with boost.
