For those who may be interested....
I have attached an updated sheet - 11-20-2016.
At the bottom of the sheet I have compared the cam profiles that look to produce the best torque and HP numbers for my target build….more TORQUE between 2500 and 3500 RPM.
As you can see the factory stock cam profile is VERY impressive when adding a Doug Thorley header and free-flow exhaust.
I added two Comp Cam profiles. The Comp Cam 252S is a very interesting profile and has been installed by two guys that gave me feedback on their experience and butt dyno impressions – one was a 22RE the other was 22R engines.
My decision to install the 261C engbldr cam, first, in this rebuild is based in part on the Performance Trends numbers on this comparison. I plan to tune and chassis dyno my truck around 5,000 miles. Based on the dyno test results, I will decide the next camshaft to install and chassis dyno test.
Please keep in mind these number are for a 20R, but they should parallel the 22R and 22RE engines.
Gnarls.
