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Compression numbers and rebuild question

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Champ Masters

15+ Year Contributor
36
1
Jan 22, 2006
Stockton, California
Hi all,

Just did a compression test and a leakdown test on my 92 GSX and now I have a bit of a dilemma.
After a good Seafoaming my compression numbers are #1 170, #2 170, #3 150, #4 150. I also did a leakdown test which confirmed that each cylinder is leaking past the piston rings. Now, I am pulling the head and sending it out to be freshened up, while it's off, should I go in and hone and re-ring the cylinders with OEM rings? I'm going to be putting on some cams and a meth kit and plan to run 25psi. Will that just blow the old rings out sooner if I don't replace them now? Or should I just slap the new head on, don't worry about it and drive it till it blows?

Any thoughts you guys have on which direction I should take would be great. Thanks!
 
If you just put rings on it you will probalby bow them out soon. You need to have the cylinders miced and checked. You will most likely need to boar at least 10 over and do a rebuild. If the Cylinders mic okay than you can re-ring. and you need to ger the guage that is for micing cylinders not just the every day mic you find at the auto part store.
 
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