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Camshaft Lift?

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Old Apr 9, 2008 | 10:42 PM
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MemphisVette
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Default Camshaft Lift?

As a general rule, if I were to have 2 cams at 110 lsa and the only difference was the lift, 560 compared to 620, (all else held constant) what would be the diff. in drivability and power band?
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Old Apr 10, 2008 | 01:05 AM
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Originally Posted by MemphisVette
As a general rule, if I were to have 2 cams at 110 lsa and the only difference was the lift, 560 compared to 620, (all else held constant) what would be the diff. in drivability and power band?
Duration and to a small extent LSA is what sets the power band.
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Old Apr 10, 2008 | 08:52 AM
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Likely if the duration etc at say .050 is the same, the .620 cam is going to naturally have a LOT more aggressive opening ramps to get valve open that far in the same amount of time. The power will be much better. It will likely have shorter adv duration since lobes are *faster* and will possibly drive better. BUT...if the adv and .050 numbers really are the same, the lift won't affect driveability at all...but power will be much improved.

Effective overlap will be a little more with the .620 with the 110 LSA constant...but not too noticable otherwise.


Lift is always good. No downsides.


JIM
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