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Old 10-19-2005, 09:54 PM
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What does it mean when it says 112+2 or different numbers
Old 10-19-2005, 10:07 PM
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The 112 is the LSA (Lobe Seperation Angle) and the +2 is the amount of advance ground into the cam.

Last edited by Azrael; 10-19-2005 at 10:49 PM.
Old 10-19-2005, 10:32 PM
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So for example if you have a 112 lobe seperation, u can degree it to maybe a 114
Old 10-19-2005, 10:34 PM
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No, LSA and timing are two different things.
Read the cam sticky, and you'll see the difference
Old 10-19-2005, 10:43 PM
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i meant timing, my bad
Old 10-19-2005, 10:46 PM
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Actually the advance lowers where the power band will be at the cost of some top end. To find out the advance or retard you need to subtract the Intake Center Line of the cam from the Lobe Seperation Angle... So if the ICL is 110 and the LSA is 112 then that would be a +2 advance.

Retard does the opposite and moves the powerband up. With an adjustable timing chain you can advance or retard the cam with the preground advance and/or retard taken into account. Thus advancing it 2 degrees would give you a total of 4 degrees of advance on a +2 cam. That effectively adjusts the ICL...
Old 10-20-2005, 05:43 AM
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Originally Posted by Azrael
Actually the advance lowers where the power band will be at the cost of some top end. To find out the advance or retard you need to subtract the Intake Center Line of the cam from the Lobe Seperation Angle... So if the ICL is 110 and the LSA is 112 then that would be a +2 advance.

Retard does the opposite and moves the powerband up. With an adjustable timing chain you can advance or retard the cam with the preground advance and/or retard taken into account. Thus advancing it 2 degrees would give you a total of 4 degrees of advance on a +2 cam. That effectively adjusts the ICL...
Great explanation brother! Thanks!!!
Dave




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