Working to understand the Dodge cam functions, particularly when changing camshafts. Currently working with a 2013 Challenger RT with 5.7L A5 and Comp 274 camshaft with limiters. It looks like the limiters restrict movement to about half the factory range. So when I look at the camshaft functions (focus for now on the intake), the OEM had a VVT range of about 47-deg (145.5-98.5) with a park position (Int CL?) of 120-deg and a max advance all the way down to 85-deg from CL. Assuming that this Max Phase is more of an error threshold and the normal VVT occurs between the 145.5 and 98.5 positions.
(1) Does the Lock-pin position represent INT CL? Is so is this now 113-ish
(2) With the limiters does the Max/Min become something more like 125-ish/100-ish (+/- 12 from the 113)?
(3) In all of the tables should the VVT values be modified to be within this 125 to 100-ish range then?
(4) In the PT base should Max/Min should these be modified to be within half of that 47-deg range of motion?
I didn't look too closely at the phase design when installing the limiters to check the physical relationship between the cam and the limiter. Guess I just assumed it is limiting the range of motion equally either side of a reference position, being the intake CL.
Cam Data:
274/287 at .006
226/234 at .050
LSA 116
Int CL 113
Dodge Cam Functions.JPG
Thanks.