03-19-2010, 06:19 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Quote:
Originally Posted by ERA Chas
First I'll deal with you Howdy then I'll help dc get his covers off. You are making another intellectual exercise out of a 450HP combination. 
The ICL of 105 is crank degrees. The LSA of 106 Is cam degrees which = 212 degrees of crank rotation. Thus-212-105=107. Installing the cam +2 (crank) degrees means the cam is 1(cam) degree advanced.
I left my Euclidean hat at the haberdasher-but I know that's some pu$$y cams you guys got. And dc is bleeding off a lot of cylinder pressure with 106 LSA-those valves are open a long time together-especially with .501 net lift. A 110 LSA would sharpen-up the bottom end, especially with stock med-risers. It must be noisy but doesn't breathe.
dc- use RightStuff on the cover to gasket and brown axle grease on the gasket to head. It will not leak. Use a 1" wide paint scraper or spackle knife to get between the goo you have now and the head to remove the covers. Clean all surfaces carefully.
Take your time and you'll enjoy the work. If stuck, you could always ask Karnak to explain the Pythagorean Theorem-AGAIN!  |
Partial credit. For full credit, I was looking for this:
Exhaust Duration = 48+14+180 = 242
Exhaust Center Line = (242/2)-14 = 107
Intake Duration = 16+46+180 = 242
Intake Center Line = (242/2)-16 = 105
Lobe Separation Angle = (107+105)/2 = 106 |
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