what is the maximum PSI for engine position oem evo 9 ?

 

i dont know

 

Are you talking compression testing your engine or what the stock boost is from the factory?

Not understanding your question.

 

yes i am talking about compression testing for maximum psi

 

and sorry for my question.

 

i mean , if i change the turbo oem to bigger and cams, what is the maximum pai for engine position ?

 

psi

 

That's an odd question, but I'll bite. I think the most I have seen is just under 200 PSI. The number isn't that important. What you want to know the the difference between the numbers from each separate cyl.

 

160s PSI range...which should be your baseline numbers.

Here is something I read in another EvoM thread..

"Low compression in one cylinder usually indicates a bad exhaust valve. Low compression in two adjacent cylinders typically means you have a bad head gasket. Low compression in all cylinders would tell you the rings and cylinders are worn and the engine needs to be overhauled."

Your poor English makes it difficult to answer your question. Sorry....