Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

compression question?????

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Old 04-23-2005, 02:58 AM
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compression question?????

I'm installing my PFI turbo on my 95 soon,so I ran a compression test and here's the #'s on a 110K mile,#1 seem to be low.What do your think?Is it still OK to boost with a good dyno tune on 6-8psi?I already got an xtra motor laying around my friend's shop,LOL!Going to test the compression again tommorow,cause I just clean the intake plenum and injector with the B&G product.Thanx for your help,any advise what to look out to or to watch for?

#1=175 the one in the front to the pass side.
#2=192
#3=192
#4=203
#5=196
#6=202
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Old 04-23-2005, 05:44 AM
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202 or 302 for #6? if its really 302 then something is definately wrong, probably with the way you read the gauge lol.
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Old 04-23-2005, 09:18 AM
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The difference from cylinder to cylinder is what you wanna look for. The more of a number difference the worse. #5 and #6 are really bad if thats what the guage really read. #1 and #2 are kinda bad too but not as bad

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Old 04-23-2005, 09:21 AM
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Originally Posted by Nealoc187
202 or 302 for #6? if its really 302 then something is definately wrong, probably with the way you read the gauge lol.
Sorry my sleepy hand type the 3 instead of 2.

Already edited it.
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