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compression test results

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Old Dec 30, 2003 | 09:29 PM
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Default compression test results

Well I had one done on my forged ls6 with je pistons with -2cc reliefs

Heads milled .050 59cc chambers

About 4 1/2k miles on engine

170 on 6 and 165 on 2 cyclinders

My question is about the numbers, Is the -2cc reliefs causing my compression to be lower and if so by how much? I see most with this setup minus the pistons like 190ish? I also have a tr230 if that matters.
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Old Dec 30, 2003 | 09:32 PM
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Ummm.... Why don't you just call Don and ask him, do you think he's stupid or something?
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Old Dec 30, 2003 | 09:35 PM
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Originally Posted by Joe DIESO
Ummm.... Why don't you just call Don and ask him, do you think he's stupid or something?
I hate you...your dead. This is more of an informative thread. I know my compression is good....I think Dons busy working right now.
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Old Jan 1, 2004 | 12:47 PM
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ttt anyone?
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Old Jan 1, 2004 | 12:51 PM
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Originally Posted by Joe DIESO
Ummm.... Why don't you just call Don and ask him, do you think he's stupid or something?

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Old Jan 1, 2004 | 12:57 PM
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The cam will affect static compression.
Was the motor warm ? How many miles on the motor?
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Old Jan 1, 2004 | 03:26 PM
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Originally Posted by wrencher
The cam will affect static compression.
Was the motor warm ? How many miles on the motor?
4 1/2k on motor, test was done right
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Old Jan 2, 2004 | 01:33 PM
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Hi,
I estimate about –0.29CR for 2cc notches from 0CC’s.
Your setup is + 0.74 over stock 66.67 head, 0 CC’s with same deck & gasket.
If you went from an early gasket to a late gasket it would be –0.22CR.
Didn’t JE raise the deck? Is the cam setup retarded?
Good luck,
Steve
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Old Jan 2, 2004 | 09:02 PM
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Originally Posted by SNW Vette
Hi,
I estimate about –0.29CR for 2cc notches from 0CC’s.
Your setup is + 0.74 over stock 66.67 head, 0 CC’s with same deck & gasket.
If you went from an early gasket to a late gasket it would be –0.22CR.
Didn’t JE raise the deck? Is the cam setup retarded?
Good luck,
Steve
cam was installed straight up, no retard. I bought the 3.905 je pistons
Attached Thumbnails compression test results-forged-ls6.jpg  
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Old Jan 5, 2004 | 07:59 PM
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does the pic help? snw vette?
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