Compression test numbers for d-series?

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02-28-2009, 03:09 PM

Silvertc

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Compression test numbers for d-series?

Hey guys, i just bought a d-series to throw in my beater. Anyone know what the compression numbers should be when doing the test? How many Psi? thanks

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02-28-2009, 03:21 PM

bigD

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Re: Compression test numbers for d-series?

more important is that they are all about the same psi, but last z6 I did was around 180

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02-28-2009, 05:46 PM

Since 1983

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Re: Compression test numbers for d-series?

I am pretty sure anything in the neighborhood of 190 is right

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02-28-2009, 08:32 PM

Jimster480

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Re: Compression test numbers for d-series?

depends on what d series you get. the compression numbers will reflect the CR of the motor and different D series have different #'s

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02-28-2009, 08:35 PM

Meoshe

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Re: Compression test numbers for d-series?

Leakdown will yield the true health of the motor. I just did a compression test and it checked out all the way across. Leakdown is what found the hg was bad in #1 cylinder.

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03-01-2009, 05:21 AM

Jimster480

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Re: Compression test numbers for d-series?

Quote:

Originally Posted by Meoshe

Leakdown will yield the true health of the motor. I just did a compression test and it checked out all the way across. Leakdown is what found the hg was bad in #1 cylinder.

how do u do a leakdown test? and how can u get great compression across the board and then have a bad HG in cylinder 1? You would have compression loss in that cylinder...

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