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Compression Test

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Old 01-15-2008, 04:57 PM
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Default Compression Test
Did a compression test yesterday....

D16Z6


120-----90------90-------120



30 psi difference = not good? You think I should boost this bitch anyways?
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Old 01-15-2008, 05:00 PM
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Yeah, thats a 25% difference, I think you'd want the cylinders within 10% of each other. Do some preventative maintenance first.
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Old 01-15-2008, 05:18 PM
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I was afraid someone would say that. I'll do a second test today...
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Old 01-15-2008, 05:27 PM
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You make too many threads. Half of them can be answered by downloading a shop manual stickied at the top of this forum.
 
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Old 01-15-2008, 06:23 PM
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Originally Posted by jagojon3
You make too many threads. Half of them can be answered by downloading a shop manual stickied at the top of this forum.
roger that
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Old 01-15-2008, 06:55 PM
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screw the percentage differences that motor is not in good shape at all. Normal for a d16z6 is 180-190 per cylinder


anything below 150 is a damaged motor somewhere
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Old 01-15-2008, 07:28 PM
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Default Re: Compression Test
Originally Posted by chris
screw the percentage differences that motor is not in good shape at all. Normal for a d16z6 is 180-190 per cylinder


anything below 150 is a damaged motor somewhere
+1 are you sure your gauge is somewhat reputable and you blocked the throttle open for 4-5 cranks? Also make sure all the plugs are out, lotta guys ---- this up.
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Old 01-15-2008, 08:32 PM
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Default Re: Compression Test
Originally Posted by chris
screw the percentage differences that motor is not in good shape at all. Normal for a d16z6 is 180-190 per cylinder


anything below 150 is a damaged motor somewhere
Wow yeah, I have an Ls/Vtec, I didn't know what a Z6 is supposed to have but I think I'm somewhere in the 210-220 range across all cylinders.
That sucks.
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Old 01-15-2008, 09:30 PM
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d series should be 180+
b vtec=200+
b non vtec=180+



those are healthy motors that wil enjoy raping and warming up off the rev.
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Old 01-15-2008, 10:08 PM
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Default Re: Compression Test
Originally Posted by JoshMO
Did a compression test yesterday....

D16Z6


120-----90------90-------120



You think I should boost this bitch anyways?
Ship Shape.....Boost that bitch hard


Goddamn last time I saw compression #'s that low I was pulling peices of the spark plugs out of the tops of the pistons.
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