>
> Unless I'm mistaken, every time a cam is ground, the lobe height would be
> less (the diameter of the lobe decreases), the profile also decreasing. I
> assume it can be ground until the cam no longer meets the specs. This would
> indicate that your "new" cam has been ground more times than your "old" cam
> - proving once again that 'new' & 'old' are relative terms, especially in
> the LBC realm.
>
Ok, according to Ken's very helpful explaination of how to go from
camshaft measurements to valve lift, I took the measurements again and
arrived at valve lift values of:
Spec Old New
Exhaust 0.364 0.370 0.402
Intake 0.364 0.370 0.413
So the old cam is basically in spec (I'm attributing the .006 difference
to measurement errors), and the new cam gives significantly more lift (about
9% on Exhaust and 11% on intake). Now, how can I measure duration of the
valves?
----
Jeremy DuBois jer@thlogic.com
Manager, Info Systems http://www.thlogic.com/~jer/
Thermalogic Corporation '60 TR3A, '74 MGB, '76 Spit
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