.484 purple shaft grind info.

This all came about because of another thread on cam selection.
I was told about information on how mopar cam's are measured differently @ 50 according to a bit of information called victory tech papers.

In fact i had this information printed out and never really looked at the first page of the printout to try and understand it because it was about the size of the cam @ 50. as I originally printed it out for the intake valve closing events.

These events are listed and are measured at .006 lift.

After reading over the victory tech papers I have come to the conclusion that the author did not mean that the mopar cams could not be compared to other cams but WHEN comparing a cam @ 50 lift it should only be done with a performance cam and not with a OEM CAM GRIND.
I think he means to say only use the @ 50 lift measurment for PERFORMANCE CAMS (MP)IE>>MOPAR PERFORMANCE
AND OR IN GENERAL --ANY PERFORMANCE CAMSHAFT.

I see the .484 mopar cam as having a 284 advertised duration as being correct.
The intake valve closes at 70 degrees ABDC in the victory information.

If you compare this to a 284 advertised comp cam XE284H it has a intake valve closing point of 68 ABDC

Comp cams are measured at .006

If you want to be more accurate then you use @ 50 lift.
The mopar cam is 241 @ 50 and the comp cam is 240 @ 50.

Comparing the both of them is the same.
One is a mopar cam and other one is from comp cams.

I SEE NO DIFFERENCE IN THIS INFORMATION.


Given the inside information from the company that grinds the .484 cam (that i remembered i had) and in looking into it further,i see that mopar cams are no different then any other cam at how they are COMPARED TO OTHER CAM COMPANY'S.