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compression test on JDM B18C R?
Posted: January 24th, 2005, 8:22 pm
by Enemy
When you do a compression test on your B18C R
what ratings or numbers are you suppose to get?
Posted: January 25th, 2005, 9:41 am
by Bbasso
I did a test on my stock usdm motor and got between 230 and 235 for all four.
the key is not to have to much variation (sp?) between them.
Posted: January 25th, 2005, 5:15 pm
by Enemy
Thanks for the reply
Yesterday the compression test was done and got over 300 on each cyc.
The motor was just purchase and the seller said that the engine is
practically new. Its a 2000 JDM motor - does this sound right
Posted: January 25th, 2005, 6:07 pm
by ITRacer121
that is weird? my USDM did 230 all across...then I put in high compression valves and milled the head and im only doing 265 across?
I would check a different compression tester
Posted: May 26th, 2005, 4:58 pm
by Heps
Yeah that seems to be a bit high, I have 220 across all my cylinders
Posted: March 6th, 2007, 3:33 pm
by Trev-R
I have a B18C-R and it did 250 across, you must have something in there to make 300 across.