Did a compression test.
175-175-162-175
at 140k I was seeing how the motor is, according to C-Speed Racing, 175 is healthy for a 9:1 compression motor. I'm still going to change the rings when I switch up the head anyway. I guess these numbers are decent.
at 140k I was seeing how the motor is, according to C-Speed Racing, 175 is healthy for a 9:1 compression motor. I'm still going to change the rings when I switch up the head anyway. I guess these numbers are decent.
Actual psi isn't what you really need to worry about, granted they aren't seriously lower than what they're supposed to be. What you want is consistent numbers throughout each cylinder, with variation of 25psi max (25psi is for a b18c, not sure about what a b18b is).
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oMekoneDC2 »</TD></TR><TR><TD CLASS="quote">whats the normal compression for a GSR?</TD></TR></TABLE>
Around 200 psi. And yeah you should be worried about large variances between cylinders rather than the number itself. A low consistent number means your motor is worn from usage, and a large variance between a cylinder is damage that could of been caused by a broken piston ring, cracked ringland etc.
Around 200 psi. And yeah you should be worried about large variances between cylinders rather than the number itself. A low consistent number means your motor is worn from usage, and a large variance between a cylinder is damage that could of been caused by a broken piston ring, cracked ringland etc.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ti3d in »</TD></TR><TR><TD CLASS="quote">
Around 200 psi. And yeah you should be worried about large variances between cylinders rather than the number itself. A low consistent number means your motor is worn from usage, and a large variance between a cylinder is damage that could of been caused by a broken piston ring, cracked ringland etc.</TD></TR></TABLE>
Low numbers can be a valve problem, bad head gasket, warped head, as well as other things. There are a number of things that can cause bad numbers. A low # in a cylinder could be a bent rod, bent valve(s), etc
Around 200 psi. And yeah you should be worried about large variances between cylinders rather than the number itself. A low consistent number means your motor is worn from usage, and a large variance between a cylinder is damage that could of been caused by a broken piston ring, cracked ringland etc.</TD></TR></TABLE>
Low numbers can be a valve problem, bad head gasket, warped head, as well as other things. There are a number of things that can cause bad numbers. A low # in a cylinder could be a bent rod, bent valve(s), etc
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