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4age to 7age Questions
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10-09-2010, 08:16 PM
Post: #6
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not sure what CR you want to run... but a 10.3 4A piston in a 7A(stroke is 85 vs 77) the CR is well above 11 to 1, maybe close to 12 to 1.
Quote:Check Sam's calcs, they are pretty useful!!! without the math.... I don't trust the calculations... IE, my example above... with the chamber volume inaccuracies I'd look into using either a TVIS piston(9.4 to 1), OR a later 4AGZE piston(8.9 to 1) might just be perfect when fitted to a 7A with 8mm more stroke. I'd check a CR calculator and try to calculate which 4AG piston(77mm stroke) will work best in a 7A with 85mm stroke Dan - You can |  .... OR you can ask for help!!!OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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| Messages In This Thread |
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4age to 7age Questions - Libbor - 09-10-2010, 12:39 PM
[] - corolla4agze - 10-08-2010, 05:37 PM
[] - oldeskewltoy - 10-09-2010 08:16 PM
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