Well I figured I would test my car this past weekend while helping out a friend on his car. I have a tester and never used on my s2000. Are these numbers okay? I tried a search but couldn't find any other numbers...

Test was done with a warm engine.

1-230psi
2-240psi
3-240psi
4-245+psi

#4 was weird it kept wanting to go up on the gauge when cranking the car. #1 wouldn't go up anymore then 230 no matter how many times I cranked it. Should I be worried?

I have about 34,000 miles on my MY03 but still have the extended warranty. Should I take it in for the low #1 cylinder? Any input appreciated.

 

As long as they are within 15% of each other you are of. #'s look good!

When you say #4 kept wanting to go up was 245 the highest #? Did you have the throttle open when cranking?