ok i plan on buying a 2000 b18b1 with 89,xxx miles on it. the guy says the compression tested 180 on all 4 cylinders. what i want to know is that is that bad cuz it seems a little low to me. in other words what are the compression supposed to be at on a b18b1 LS motor? i know its lower compression than a b18c1 cuz for them i usually see them like at 225-235.

 

180psi on all cylinders is very healthy. Nothing to worry about. Max psi on a B18B is around 185~190 psi

Edit- Service manual says 185psi max, 135psi min, no more than 28psi difference.

 

ok thanks