Nextelbuddy

just curious, if u build your motor with lower compression pistons such as 9:1 and you perform a compression test, what shoudl the nubers be around accross the board?

i had 210 210 210 210 on stock pistons and rods, just curius before i start getti into it thats all.

ek9turbo

i have 8.9:1 cr
my compression test showed 175psi in all cylinders

Nextelbuddy

anyone else?

i want to now so that when i do a compression test i will know what numbersd are good and what are bad that will help me figure out if my rings are seated properly or not.

VTC_CiViC

More important than specific numbers is equal compression in all 4 cylinders.

FWIW, on a 9.6:1 CR Civic, I was getting 190-195psi accoss the board.

Nextelbuddy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_CiViC &raquo;</TD></TR><TR><TD CLASS="quote">More important than specific numbers is equal compression in all 4 cylinders.

FWIW, on a 9.6:1 CR Civic, I was getting 190-195psi accoss the board.</TD></TR></TABLE>

yea i understand that part about the consistancy of the numbers to each other.

but i just wanted to know how much from 210 psi i have now will i have with 9:1 comression?

pip9

I just did a compression check on my car, 175-180 across all 4 cylinders. I have 9.0:1 compression pistons

D@nnY

190 ..9.1 in gsr 84mm

b00stedbyFastrax

175 across on 8.0:1 CR.