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Automobile Enthusiasts

In reply to the discussion: Camshaft Question [View all]

Mopar151

(10,316 posts)
3. Best bet is the cam catalog - I prefer Comp or Crane
Thu Nov 21, 2013, 07:30 PM
Nov 2013

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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Recommendations

0 members have recommended this reply (displayed in chronological order):

Camshaft Question [View all] 8 track mind Oct 2013 OP
Greater lobe separation is less overlap.... HooptieWagon Oct 2013 #1
I remember a nickname for high-performance camshafts ConcernedCanuk Nov 2013 #2
Best bet is the cam catalog - I prefer Comp or Crane Mopar151 Nov 2013 #3
Wow! 8 track mind Nov 2013 #4
Those cam lobes are so mild that Comp only grinds them on special order Mopar151 Nov 2013 #5
have you ever 8 track mind Nov 2013 #6
I nave not - only Engine Analyzer Mopar151 Nov 2013 #7
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