Did a compression test today
 

Well i did a compression test today on my 91 crxsi w/b16 and the results are
180-175-190-180....im planning to turbo it in the near future and, i already started buying stuff for it (intercooler/boostgauge/DIYlogmanifold) so im wondering if my engine is worth turboing right now or should i wait and rebuild it...

and 1 more ? when i was removing the spark plugs caps there was a lil bit of oil on them so i was thinking that maybe the valve cover gaskit was leaking?

so any help would be nice thanks...

Re: Did a compression test today
 

the numbers are consistent enough to boost.
dont worry about it.
but, did you test it with the throttle open?

you need the spark plug tube grommets/gakets

Re: Did a compression test today
 

no i just pulled all the plugs and screwed in the tester and tried to crank it...
why would you want the throttle open?

Re: Did a compression test today
 

Ummm, so the cylinders get a full charge of air... :1 Those numbers are low for a B16 but close enough to boost. Just replace the VC gasket and the spark plug grommets, it's $20.

Re: Did a compression test today
 

yeah those look good enough to boost. i did a comp test on my "high" compression gsr not too long ago. the compression is around 11.7:1 and the head is milled .040 so i was told it should be around 230-250psi in each. my results were 160- 173- 184- 197. thought it was funny how they were all diferant and ho wit went up in compression as i went down.


boost that bitch.

Re: Did a compression test today
 

try again...
this time pull the ecu fuse and hold the throttle wide open.
you will get better more acurate numbers.

Re: Did a compression test today
 

ok i will try that 2morrow also what is the optimum numbers that you would get for a healthy engine?

Re: Did a compression test today
 

If I'm not mistaken a B16 should be 200-210 ?? But since it's old I wouldn't expect it to be over 200, how many miles on it.

Re: Did a compression test today
 

well i think the motor has around 10000miles and 20000 miles on the car itself.... the older guy that i bought from him said when he got the motor it had any where from 40-60 thousands miles and i have had it for 3 years..

Re: Did a compression test today
 

yes. it's necessary and dont forget to warm up before do it ur engine.

my crashed VTI with B16A2 did gives something like this..195-200-195-205 .. :6