Are you doing the test 2000 feet below sea level?

 

No. I'm at 15ft above sea level. Near the coast of NC

 

That was actually a joke, since there probably isn't any place on the planet that would be so far below sea level.

I wouldn't be concerned about it reading high, but I might consider trying a different tester, and also trying it with a warm engine to see how it changes. How many miles on on it?

 

It has 22k according to the company I bought it from. It runs great, I just wanted to test it since it was from a wrecked car and all. I will test again after driving it a little bit

 

Though I posted that 228 PSI~ was the nominal compression by definition nominal means - . minimal in comparison with real worth or what is expected; token a nominal fee -

So I take this as if you are at 228 that s fine, but I would like to actually find out straight out of the factory what you're suppose to be making, or maybe like after 5,000 miles. I am sure it is different because rings have not seated in the beginning. What do you guys think?

 

this is a helpful thread for those who may not have known how to do a test. accurate to the last bit.

i just did my compression test and here is the breakdown:

F22C 2004 50k miles
fresh oem Honda HG, ARP head studs
5-6 cranks, wide open throttle, operating temp
cyl1: 240-242
cyl2: 240-242
cyl3: 240-242
cyl4: 240-242

keep posting your info guys. this will come in handy for someone some day.

 

I can't see any of these pictures? whats going on

 

just got mine done. sure wished i had someone crank it for me.

cyl 1: 215-220
cyl 2: 200-210
cyl 3: 200-215
cyl 4: 210-215

are these any good? is it a hint that i need a valve adjustment? oh and cyl 3 spark plug had very light oil on it. whats wrong?

 

Here's my compression and leak down test how-to: http://robrobinette.com/S2000Compression.htm

 

Awesome information here. I would have never thought it would be this straight forward.