Page 1 of 1

LOWERED cOMPRESSION

Posted: May 31st, 2003, 5:24 pm
by 2KITR
is it realy necessary to lower your compression when running with a turbo? if you keep it at low boost? and if it is how do you know when too much is too much? plez let me know.

Re: LOWERED cOMPRESSION

Posted: June 1st, 2003, 2:02 pm
by Erik B
You can run low boost with stock comperssion and be OK. Feul is going to be your mean thing when running high compression. I would say to say around 5 psi to be safe but there's people on here running 7 and 8....

Re: LOWERED cOMPRESSION

Posted: June 1st, 2003, 2:44 pm
by Jan Niemi
2KITR wrote:is it realy necessary to lower your compression when running with a turbo? if you keep it at low boost? and if it is how do you know when too much is too much? plez let me know.
Stock (10.6 to 1) compression - 9.8 psi at 9000 rpm on the dragstrip, 8.5 on the street. 27000 miles and keeps on tickin'.

Octane, timing and tuning has a lot to do with how long a high compression motor will last on boost. I run 94octane in mine since day one. When it detonates, it's too much!!

I agree with Erik, fuel, fuel, fuel (in the proper ratio ofcourse)

Posted: June 1st, 2003, 5:43 pm
by Erik B
Jan where you been bra....

Posted: June 5th, 2003, 12:12 am
by Kangbateh
I Agree with Jan.