compression test good or bad?

[speedypollard]

ok so yeah i did a compression test today on a stock bottom end car with stage 2 bc cams /mpx gears and bolt ons with a zeta 2.8 turbo kit it read 160 180 180 180? is this good or bad and do i have a problem with a vlave ? or whats going on with it it runs good besides idle is rough unlike most cars with cams i have seen the car is un-tuned still also so who knows

[underSRTarmor]

i think the rule of thumb is u dont want more than 10% difference....

looks like 11.1111111%

[DeAnzaJig]

theres no way to tell exactly where the leakdown is until you do a LEAKDOWN TEST.

How To Perform A Leak Down Test - EricTheCarGuy - YouTube

Heres a good video of how to do one. or if you wanna do another test, whatever cyl is 160, pour a little oil into the cyl and do the compression test again. that will tell you weather or no its a ring issue. if compression raises significantly, its a ring problem. if not, then its either your head gasket, or a valve

[speedypollard]

could it be possible nothing is wrong or not bad enough anyway with out removing head or timing components possibly cam gears need adjusted ? idk just guessing

[tunerlover3]

If the car is untuned, that is more then likely your reason for the rough idle.

Retest the low cylinder.

[didlewine]

did u do a dry test or wet test? it sounds fine your almost within the 10% tolerance i just did mine 165 across the board with 97k on stock motor