Red99CivicSi

I did a compression check with this setup: GSR block with Endyn pistons around 8:9:1-9:1, Si head, motor is built and running 81.5 mm pistons. Here were the results,

Cylinder 1 170
Cylinder 2 135
Cylinder 3 160
Cylinder 4 160

I did a leak down test and didnt really come to any conclusion. Couldnt hear any air coming from oil cap or throttle body. I think i might have heard something from the exhaust but cant confirm. No bubbling coming from coolant when radiator cap was off. Car runs good and no smoke coming from exhaust. Head gasket is not leaking and everything seems fine. I really cant figure out whats wrong given the info I posted above. You would think if it is something that wrong the car would run like **** or smoke. It runs fine and I dont understand. Could it be a valve to tight or something? I let a friend do it because he had the tools. Please post any possibilities given all the info above. Thanks in advance.

Flamenco-T

did you floor the throttle when doing cylinder 2 ?

Kwuaymaikrup

There's your problem. Borrow the compression tester and do it yourself. That way you know everything is consistent. Just my .02

-Ryan

Red99CivicSi

I let my friend adjust my valves. I did the compression test with the injector clips off and full throttle for all. I want to try and find out whats going on so I can go to the dyno and tune my hondata.

BoostingSnail

When you did the leak down test what was the air pressure set at?....also since its only dropping around 30-40 psi from the other cylinders on the compression test it might be hard to hear it coming out the tail pipe....make sure you dont have any exhaust leaks where the air might be escaping...and maybe readjust the valves again on #2....Good Luck