my compression test
another member of this forum (briguy) was having a similar issue where he wasn't making power in upper rpm's. his problem ended up being spark blow-out, fixed with the kenny bell boost-a-pump.
It's a good thought but SmallTuner I believe is using a Haltech and a boost-a-spark will likely show no improvement with a Haltech. I've tried it.
Last edited by rcdash; Jul 16, 2009 at 09:42 AM.
i find it very odd that every cylinder drop the same amount of psi, that means that if the rods bent then everyone of them had the same degree of bend or if a intake/exhaust valve was leaking then it would have to have the same amount of leakage on every cylinder...........i think thats highly unlikely and almost close to impossible...........as far as overheating......are you getting any air in your coolant system? is the car boiling coolant in your overflow tank?.......how is your oil, any moisture in it?..........and how much moisture is coming out of the exhaust?..........i wouldn't be so quick to ripp apart the engine until i was completely sure thats what i had to do.....but that's just my .02
I agree.... all cylinders at 90 psi.... hmm. Try a different compression gauge. It is impossible to hurt all the cylinders the same amount!! If that truly is the compression, Id check things like cam timing. Something that can affect all the cylinders equally!
still there is somthing not right.
befor i did my compression test, there was a noise comming from the VTC pully (dirver side).
allso the radiator is full of dirt
.its like sand with brown color all over the water passages

specially in the overflowtank.
and i allways found this if i open the radiator cap after a hard run
i find it very odd that every cylinder drop the same amount of psi, that means that if the rods bent then everyone of them had the same degree of bend or if a intake/exhaust valve was leaking then it would have to have the same amount of leakage on every cylinder...........i think thats highly unlikely and almost close to impossible...........as far as overheating......are you getting any air in your coolant system? is the car boiling coolant in your overflow tank?.......how is your oil, any moisture in it?..........and how much moisture is coming out of the exhaust?..........i wouldn't be so quick to ripp apart the engine until i was completely sure thats what i had to do.....but that's just my .02


the engine oil is normal, no water or any other thing.
and about the air, yes im gitting air in my coolant system.
even if i bleed it.
and like i said the radiator is full of brown water, dirt or oil

here is a pic i got it today
the compression just hit 135 psi with the same guage i used befor.
old compression was arund 85.
Joined: Mar 2007
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From: Dallas/NewYork/Michigan/Korea
What...that's fluid? What's going on there? And huge power dropped?
Have you check other things as well?(timing, plugs etc...)
135 psi sounds better than 85 psi tho.
Have you check other things as well?(timing, plugs etc...)
135 psi sounds better than 85 psi tho.
about the timing, i rotate the engine and have No. 1 cylinder piston in TDC.
then i opend the rocker cover to check the timing noses intake and exhaust in Bank1.
they look just the same as the manual pic, but to make sure, i have to remove the tming chain cover to see the meeting marks.
i have a feeling that this motor was having an overheating problems that i dont know about, and this is what makes all the Cylinders dropd the compressin.
looks like a piston to cylinder bore clearance problem.
ow really ?
thats what u get from DARTON SLEEVES and a uesd broken block
the engine was just a rock from the first day i run it, but then after months things started to be bad.
im gona buy a new block. no more darton sleeves for me.
thats what u get from DARTON SLEEVES and a uesd broken block

the engine was just a rock from the first day i run it, but then after months things started to be bad.
im gona buy a new block. no more darton sleeves for me.



eheheh man that radiator fluid is s**t
