last year I did a compression test and I showed around 180psi +-5psi for all 4 cyclinders..... and today I did another one the same way I usually do it but I forgot to have the car at WOT when I crank it 7 times so my compression was 95-100 psi for all 4 cyclinders does WOT really make u gain 80psi or so of compression when doing this test???

 

why not try it again On my own car it hasn't made a difference.

 

Well its not like there a majuor difference between the individual cylinders so I would assume it was the throttle not being at WOT. But yeah why not do it again it takes 15mins.

 

Yea I will... tommarrow I'm kinda scared