My compression numbers
#1
My compression numbers
2003 w/133,000 miles. The first three cylinders were 210-215 , I did three times each cylinder. But the 4th cylinder was 220-235. So I'm wondering why is it like this? I used a brand new compression tester from Advance Auto parts and did not use the adapters that were included in the compression kit. Could that be why?? Thanks
#2
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It could be so many reasons (such as more oil sealing the rings in that cylinder or better valve seating), but those numbers are flat-out awesome for 133K miles
#3
Compression in my 4th cyl was a little higher than the rest. On my 2003 s2k w/ 118k mi. compression numbers were 220-225s average for 1-3 and 230 for 4. I let the engine turn over 6 times per cyl.
#5
yea I dynoed the car and made about 187whp and it was lower than what I was expecting. So someone suggested that I should do a compression test.
#6
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Originally Posted by Stratocaster' timestamp='1310479096' post='20770711
I would be happy with these numbers even on a newer motor. Have do a leak down test yet? Why are you looking at this at all, are you having an issue?
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