how calculate the safe boost ?
 

how can i calculate the safe boost for any engine ?

Re: how calculate the safe boos ?
 

There's no way to calculate it how much, it's trial and error. It's much easier if someones done it before you and saves you the trouble.

Re: how calculate the safe boos ?
 

keep turning it up until something breaks, then back it off a bit.

Re: how calculate the safe boos ?
 

that got me laughing pretty good

Re: how calculate the safe boos ?
 

its the perfect answer i hear at all :D lol

Re: how calculate the safe boos ?
 

i know it depend on the C R. but is there any equation to calculate it ?

Re: how calculate the safe boost ?
 

It does not depend on compression ratio, it depends entirely on tuning. Otherwise there would only be one compression ratio used for every application. Generally speaking, almost all engines can handle some positive boost pressure over ambient (atmospheric). A majority of decently designed stock engines can at least handle a half an atmosphere of positive boost pressure which would be 6-8 psi since atmopheric pressure is 14.7 psi as is.