I decided to do a compression check on my VET a couple of minuites ago since it was running like crap and I got the following numbers


cyl#1 160
cyl#2 105
cyl#3 150
cyl#4 120

oil added
cyl#1 270
cyl#2 135
cyl#3 200
cyl#4 165



The engine has 86.5mm CP pistons (9.5cr) and a stock VE valvetrian. The block is freshly built and has about 1000 miles on it.

I plan on doing a leakdown test tomorrow but what are your thoughts.

My first guess is a skipped tooth or a couple of bent valves.

Thanks in advance

Nooooo!!! Hopefully you just skipped a tooth or 2.

where in bmore are you?

where in bmore are you?

I dont live in bmore anymore, i live in ATL now. When I lived out there I stayed in Owings Mills.

Did you get it fixed yet?

Ouch that sucks, what's the word on ur engine

Whats the word on yours Z?

wassup Brad, I don't want to jack this thread, so I sent you a pm

prob bent valves. Unless you have aftermarket valve springs then could be something else. good luck.

Those numbers really seemed to go up when you added oil. Rings?

I dont think so...since the car was cold when i did the second compression test. I have CP pistons in their currently and I beleive the need to heat up to get an actuall reading

Did you get it fixed yet?


The head also failed a leakdown in cyl#2, only held 20% of 95psi. So I figured what the hell and installed my stock DE head. That head has less than 10% leakdown at 95psi.

Yeah...its fixed for about a week or so....Im rocking a DE head right now until I can strip down the head from my spare SR20VE.


I will be dropping my bad head at the machine shop tomorrow for them to take a look at it.

wow, so you ended up with bent valves? how high were you running? do you have a rev limiter?

I ran my VE stock to 8000rpm but I think my gauge may be off slightly. I had no rev limiter, but I didn't notice anything weird at all. Maybe I was just tempting fate huh? I will take a look at my head when I get it back. See if I can notice anything.

Coheed turn the whick down to 7500 and save yourself the trouble power falls off around 7100-7200 on the stock ve cams anyway.