I will probably be buying a 93 prelude vtec so I had a compression test done and it came out like this: 210, 206, 204, 198. I am not too familiar w/ engines but I was just wondering if those numbers are ok or not. When I called Honda they said as long as the cylinders were within 10 of each other the engine was probably still strong. Should I be concerned at all with the one that read 198? Thanks for any help.

 

well,being that the numbers go down a bit on every cylinder consecutively,The engine may have been cold.But 210 is the base number to shoot for,You should get better readings when then engine is warm.Sounds good though if its a usdm motor.

 

I think what they meant was +/-10%. So yes, cylinder 4 should be fine.