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MS3 = what compression ratio?

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Old Mar 26, 2010 | 08:51 PM
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Default MS3 = what compression ratio?

I'm running the MS3 cam in my 02 WS6...any idea where my compression ratio is?
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Old Mar 26, 2010 | 10:12 PM
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Originally Posted by MetallicaMatt
I'm running the MS3 cam in my 02 WS6...any idea where my compression ratio is?
Same as it is stock.
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Old Mar 26, 2010 | 10:31 PM
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Cams don't change static compression.
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Old Mar 26, 2010 | 10:39 PM
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compression ratio has absolutely nothing to do with the valvetrain. A compression ratio is when BDC is compared to TDC. BDC in this case is a value of TDC i.e. x1:1 where 1 is the size of the space at TDC compared to the space at BDC which is denoted by x1 where 1 is the space at TDC and x is the coefficient of how many times bigger the space is at BDC. Valves do not change that. combustion chambers sizes, and stroke control that.

damn college is turning me into a nutcase.
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Old Mar 27, 2010 | 01:12 AM
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what are they stock? I never bothered to look it up.
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Old Mar 27, 2010 | 02:17 AM
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Originally Posted by MetallicaMatt
what are they stock? I never bothered to look it up.
http://www.smokemup.com/tech/ls1.php
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Old Mar 27, 2010 | 03:15 AM
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Originally Posted by MetallicaMatt
I'm running the MS3 cam in my 02 WS6...any idea where my compression ratio is?
whoa hold up...you have 2,000 something posts, a ws6 and a 730hp vette...but u didn't know that a cam has no effect on static compression?
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Old Mar 27, 2010 | 09:15 AM
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longer duration cams lower the cold cranking compression but not compression ratio.
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Old Mar 27, 2010 | 09:32 AM
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Originally Posted by brian_rs/ss
whoa hold up...you have 2,000 something posts, a ws6 and a 730hp vette...but u didn't know that a cam has no effect on static compression?
brain fart (plus I was looking at cranks)...posted it, left the house, then realized I was about to come home to a flame LOL
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Old Mar 27, 2010 | 11:29 AM
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You can change cranking compression/cylinder pressure with camshafts FWIW.
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