Determining Compression Ratio
07-22-2003, 11:40 PM
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Determining Compression Ratio I'm trying to determine what the compression ratio would be. I have the 2002 LQ9 6.0 H.O. Vortec engine.. It's 10.0:1 stock. The stock heads have 71.06cc chambers. The heads I'm going to put on it currently have 70cc chambers. I'm running a stock length LS1 pushrod which is 7.40".. What is the max I could have milled off and run a 7.35" pushrod? I would also like to determine the C/R at this point..
How much would I have to mill the 70cc chambered head to reach say 10.5:1, 10.8:1, 11.0:1..
Bore & stroke:
(in / mm) 4.00 x 3.62 / 101.6 x 92
Clearance volume at TDC
Clearance volume at BDC
Compression Ratio
(Clearance volume at TDC) / (Clearance volume at BDC) = CR
Thoughts?
How much would I have to mill the 70cc chambered head to reach say 10.5:1, 10.8:1, 11.0:1..
Bore & stroke:
(in / mm) 4.00 x 3.62 / 101.6 x 92
Clearance volume at TDC
- Combustion chamber volume in cc
- Head gasket volume in cc
- Deck height volume in cc
Clearance volume at BDC
- Combustion chamber volume in cc
- Head gasket volume in cc
- Deck height volume in cc
- Cylinder volume in cc
Compression Ratio
(Clearance volume at TDC) / (Clearance volume at BDC) = CR
Thoughts?
07-23-2003, 12:35 PM
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