#92410, "Did compression check..have some questions."
I know this has probably been asked before, but i did a compression check today and i got 170 across all fours. I have been seeing that everyone else is getting close to 200psi from their motors, is my motor healthy enough for boost? How long will it last on 8-10psi?
#92504, "RE: Did compression check..have some questions." In response to Reply # 4 Jan-02-06 08:32 AM by l6u9k6e9
does it matter if it is done warm? also i have 8.0:1 compression, how much lower is mine going to be than stock... i did my compression test cold and they were all at like 140ish i think, i really dont remember.
#92513, "RE: Did compression check..have some questions." In response to Reply # 5
Originally posted by l6u9k6e9 does it matter if it is done warm? also i have 8.0:1 compression, how much lower is mine going to be than stock... i did my compression test cold and they were all at like 140ish i think, i really dont remember.
It makes a difference cause the pistons will expand when at operating temp causeing the "RIGHT" compression figure your looking for. At 8.0:1 your prolly looking at 15 psi less or so. Stock motor new being 200psi per cyl.
I eat emo kids for breakfast
1995 Eagle Talon (SOLD) 72' SuperBeetle 72' Standard Beetle 56' Deluxe Beetle
#92510, "RE: Did compression check..have some questions." In response to Reply # 7
my guess is that it is a stock bottom end otherwise he'd be saying "how long will it last with 20+psi?" haha. But yea it all depends, some people's last 2 months, some 2 years, depends on tuning and taking care of your motor. 8psi is a safe boost to run daily on a stock bottom end intercooled. 10psi is the maximum and I would only use if you were going out to race or something. Of course some people do run 10psi daily, but it's just a risk you don't need to take
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