Cycle Rama CR-575 Cams...TDC Lift Correction
Previous reported numbers------ .270 Intake TDC .180 Exhaust TDC (two seven zero / one eight zero)
Correct numbers are------ .156 Intake TDC .109 Exhaust TDC (one five six / one zero nine)
In defense of Wes Brown (designer of the cam) he was issuing the TDC lifts as given to him by Andrews Products (manufacturer of the cam). A few phone calls and some digging by Andrews, Andrews was very helpful and found where the problem was...incorrect hand written and verbal numbers. AP manned up and took the responsibility here. Chit happens. The "at-the-cam" data was pulled from the AP data base and the correct TDC lifts were derived.
The other cam specs remain the same:
Intake 15/35 .575Lift 230Dur 100LC
Exhaust 49/07 .560 Lift 236Dur 111LC
OVLP 22
A good thing is, no one bent a valve due to "under"-stated TDC lifts.
And, the Cycle Rama CR-575 was/is more user friendly in builds than previously thought with the initially reported TDC numbers.
Great cam Wes.
WFOLarry, thanks for encouraging this inquiry.