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-   -   adding boost question (http://forums.pelicanparts.com/911-engine-rebuilding-forum/190185-adding-boost-question.html)

1980 911 sc 11-01-2004 02:52 PM
adding boost question
 
ok, I have been surfing the web, which I know is dangerous.

I see alot of talk about effective compression ratios. I see an equation like ECR = (1+(pressure/1 bar) * SCR

Then I read stuff like your can easily run an ECR of 16:1, but can't run a SCR over say 12:1.

Can anyone explain, if this little equation is acurate and how is it ok to run higher ECR than SCR?


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