bschubarg
Well-Known Member
- Joined
- Jun 13, 2005
- Messages
- 283
- Reaction score
- 108
The current 318 standard bore with ported #302s has the Comp Cams 20-212-2 Flat Tappet.
Lobe Sep: 110*
268*/268* Adv.
218*218* @.050
.454/.454 Lift
59* degrees overlap.
Best cylinder pressure is 130 psi.
Using the Wallace Calc I get a V/P of 98..... Horrible.
New Cam:
Custom Roller 111.5 Lobe Separation
214*/214* @ .050
.474/.474 Lift
38.8* degrees overlap
Wallace V/P Dynamic Calc resolves V/P to 131.... better.
But this is all just on paper. I know how the Comp Cams run in my '87 Chrysler Fifth.
After install this weekend I will give you my impressions of the new custom Roller with 30+ V/P Index.
Ought to be interesting.
Lobe Sep: 110*
268*/268* Adv.
218*218* @.050
.454/.454 Lift
59* degrees overlap.
Best cylinder pressure is 130 psi.
Using the Wallace Calc I get a V/P of 98..... Horrible.
New Cam:
Custom Roller 111.5 Lobe Separation
214*/214* @ .050
.474/.474 Lift
38.8* degrees overlap
Wallace V/P Dynamic Calc resolves V/P to 131.... better.
But this is all just on paper. I know how the Comp Cams run in my '87 Chrysler Fifth.
After install this weekend I will give you my impressions of the new custom Roller with 30+ V/P Index.
Ought to be interesting.