b16a compression

[AllMotorB16a]

hey there as it says ive done a compression test on my b16a with roughly 120'000 on the clock runs a jun tune ecu with no limiter (i know its stupid but saving for a hondata) but ive got 175 flat across all 4 cylinders is this normal for a b16a with these kms? burns a little bit of oil but still nothing that a normal vtec wouldn't burn... so yeah and insitewould be great still new to the vtec game

[CRXDEL501]

thats not too bad. i think they should have 185 across all four.

[curtis265]

175's pretty healthy

[AllMotorB16a]

thank you for the reply's

[Super-DA9]

how many cranks did you do for each cylinder? I normally let it turn over until it reaches its maximum compression. (needle stops going up)

[AllMotorB16a]

how many cranks did you do for each cylinder? I normally let it turn over until it reaches its maximum compression. (needle stops going up)

umm about 5-6 cranks did the test twice to be sure and came up 175 across all 4 again!~ cheers for the reply

[EG52NV]

Sometimes calibration of compression tools maybe off compared to another compression tool rule of thumb is if you got even compression results across all 4 cyls with using the same compression tool than you should be good.

[infurNOS]

rule of thumb is usually no more than 10 psi variance between cylinders.

If you want to test your rings because of your oil problem i suggest putting a drop of oil in the plug holes to see if the compression goes down, that usually indicates bad rings.

Your figures are fine, well done! :d

[curtis265]

rule of thumb is usually no more than 10 psi variance between cylinders.

If you want to test your rings because of your oil problem i suggest putting a drop of oil in the plug holes to see if the compression goes down, that usually indicates bad rings.

Your figures are fine, well done! :d

don't u mean up?

and it's teaspoon

[dougie_504]

Figures are fine, even is great which is the key. Mine are 215-210-215-220 at 99,000KMs

[infurNOS]

don't u mean up?

and it's teaspoon

Yes up i mean, thanks for finding my typo