CAM PERFORMANCE QUESTION

clementine said

Agreed, after reading many 'cam choice' threads on here, I have not seen many 'square' ish cam choices. I still am wrapping my head around cam science, especially overlap and centerline.

…..does this come apart and go back together easily and quickly?'

Click to expand...

Yes, take your time pulling everything apart. It is easy.

On the cam “science” stuff.. make it easy on yourself by understanding that basics and work in from there. Duration is operating RPM
Overlap is how rowdy a cam can sound. It is the time when both valves are open.
Centerline is where the top of the cams lobe is lifting the valve at its highest in relation in degrees.

“Square” cams, are just fine if the head flow has a good balance or ratio between the intake and exhaust ports. split duration cams helped the weaker exhaust port breath out the bad. A longer exhaust duration also extends the RPM range of the cam. It can also dampen the effectiveness of the low rpm range of the cam. This can also be just a small part of that issue as the head, intake & carb could also play a roll.

If you have a good flowing head as far as the valve is being lifted on both sides, a single pattern cam is just fine. Do a search on cam testing dyno runs.

IIRC, MoPar Muscle mag did one with around 8 or 9 different cams using the MP Purple line as there base to test from.