I just had a quick question, there's a Type R for sale on thepartstrader going for 12,500. He said his compression test read 195 across the board, is this still a strong motor?

what numbers would u expect to see on a good motor?

 

if he did it right...that sounds like GSR compression

ITRs are usually above 210...

at least its consistent for all 4 cylinders

 

with 34k on the clock mine read 255 across the board.

 

hmmm, his has...83,XXX miles on it...still decent?

 

that is fine. Consistency is slightly more important than overall compression. Lets put it this way; I'd rather have 195 across than 210-210-210-180. My experiences put B18C1-5s at 200-210. H22A was about 185-195.

 

oh ok, thanks for the help

 

When you do a compression test you wanna look for consistency, not high numbers. This is because your compression numbers will vary day to day depending on your conditions/location (altitude, temp, etc). So if your numbers are consistent across the board it means your engine has even wear. Usually if a cylinder is off by alot ( i think > 20 variance) then something is wrong with that cylinder. Also your numbers will depend on whether or not you hold the throttle down or not. I did a compression test without holding the gas down and got 210 across the boards, then i did the test again with the throttle down and i got 240 across

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTHokie &raquo;</TD></TR><TR><TD CLASS="quote">When you do a compression test you wanna look for consistency, not high numbers. This is because your compression numbers will vary day to day depending on your conditions/location (altitude, temp, etc). So if your numbers are consistent across the board it means your engine has even wear. </TD></TR></TABLE>

exactly.

And hopefully the guy cranked it 6 times @ WOT.