Camshaft Question

[Mopar151]

3. Best bet is the cam catalog - I prefer Comp or Crane

Unless you're doing this with good simulation software (I use Engine Analyzer Pro), the best thing to do is figure it out by narrative - Basically, look through the listings for your engine, and pick a series of cams that matches your application. then narrow it down within the series by RPM range and cruise RPM. Then "degree it in" using the EXACT procedure on the cam card, because it may differ depending on the lobe profile, even from the same manufacturer. And be sure that your head(s) are set up with sufficent travel to accomidate the cam's lift - this is EZ with near-stock stuff, and a little spooky if things get radical.

I've tried fiddling around with lobe center and cam advance/ retard (same as intake c/l, just a different means of stating it) to fine tune combinations, and, most of the time, the mfr. reccomendations are on the money if you are using the cam as intended.

If you have more questions, PM me. I do full-on modeling and optomization for your combo for $$, and I use a LOT of data I've compiled, as well as the fmaster lobe catalogs if necessary.

One of my combinations in action:

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