Richard, A leak down test would tell you a lot more, but the car need to be
at temp to work correctly.
But it's very good that the readings are so similiar.
A compression test is really ony good in a "relative" way. It will tell
you if one or two cylinders may have a problem in relation to the other
cylinders on the SAME engine. Trying to relate your readings to another
engine can be misleading since the cam profile, valve overlap, static
compression can all be different.
Regards,
Chip
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From: Richard Taylor[SMTP:n196x@mindspring.com]
Sent: Saturday, September 13, 1997 7:03 AM
To: fot@autox.team.net
Subject: Compression check
Fellow FOTers
Thanks for the info on the head thickness and milling advice. The
compression of the existing standard head (before removal for work) is 110,
103, 108 and 105psi with the throttle open. What should this be with on,
say, a fresh standard engine.
Thanks again,
Richard Taylor, HSR #96
See you all this coming weekend @ Road Atlanta for the Walter Mitty
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