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[ 4 posts ] |
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JBRracing
Driver
Joined: Jan 13, 2010 Posts: 158
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hey guys what is the measurement i can give the machine shop to get a 2.5L head milled down to the highest legal compression. I know there's a way to measure it and i want to be at the limit but want to make sure its still legal. Thanks.
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Wed Apr 09, 2014 6:00 am |
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rothenjim
Rookie Driver
Joined: Aug 17, 2010 Posts: 12
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Hey John, If I am correct the new PCA SP2 rules are limited by compression only, 10.6 for 2.5 L engines and 10.9 for 2.7 L engines. They only reference head thickness in SP1 rules.
Jim
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Wed Apr 09, 2014 6:54 am |
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JBRracing
Driver
Joined: Jan 13, 2010 Posts: 158
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My motor has 88 high compression pistons nothing else just wondering what to tell the machine shop I guess they will be able to figure it out somehow I just didn't want I in blind
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Wed Apr 09, 2014 8:08 am |
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Director
Moderator
Joined: Nov 05, 2009 Posts: 1634 Location: Isle of Palms, SC
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John: You may find some answers here: viewtopic.php?f=7&t=2070&start=40
_________________Dave Derecola National Director 944 Cup cup944@aol.com
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Thu Apr 10, 2014 5:13 pm |
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