When I bought the car last June.

Cyl. 1 (227) Cyl. 2 (230) Cyl. 3 (231) Cyl. 4 (235)


This past Sunday - boosted since April.

Cyl. 1 (220) Cyl 2 (220) Cyl. 3 (220) Cyl. 4 (225)


I can't remember if I was consistent between starts , ie. 6 or 7 revolutions..

 

hmmm, my car has been a solid 240 every time across the board before and after. this weekend i will check again, <knock on wood> and hopefully still there.


yours are still very strong

 

How many time do you crank it?

I held the clutch in, the gas and the button and counted to 6.

 

hmm, honestly i dont remember, been awhile since i did the oh **** i hope its still good test.

 

mine was 250 on all 4 when i first got it, havent done one again.

I usually crank it till the needle stops going up

 

That could be, I can't see the guage from the drivers seat and I was doing it myself so I didn't have that luxury.

 

Mine were all the same on before test.. 250 or 260psi in each IIRC

Need to do an after test

 

after test

230, 210, 210, 210

My first test on 5/28 was 240 psi in each.. so 5 months (2 FI months) and it dropped that much. SHIT!
this is no good... Im gonna buy a leakdown tester & see whats up.. and start saving for a new motor

 

Just wandering what equipment you use to perform these tests?? (basically which compression tool)... I bought one but it wasn't long enough to reach down and connect with the threads, plus the threads were dodgy!! So took it back straight away!

 

don't worry about the actual PSI on the gauge as environmental changes can influence the results rather drastically. You should be more concerned on the percent change between the cylinders. What i've also found is that even though you can have good compression, it doesn't mean that your leak down results are automatically good.