Camshafts, idle quality, driveability and LSA-REAL WORLD EXP and OPINION

I agree with all of this, even the bowel movement part. Definitely passionate about that.

Other than that, I'm still stumped that people think LSA is the make or break datum point of cam design. Comp says that a narrow LSA decreases overlap. Now that I write that, I may have that wrong. Comp says so much **** that's backwards I can't keep it straight.

I'll have to read the post that roccodart provided. I will say that while I personally like Chase Knight, we have never had an agreement of cam timing. Especially on blown alcohol stuff. So I'll have to see what he said.



I'm still waiting for two things.

1. I want it explained to me how I can get a 900 RPM idle out of a cam with 255*'s duration at .050 and still have enough vacuum to run power brakes. I don't let it idle that low, but I can.

B. If two cams have the same duration at .050 lift, does it know if it's a HFT, HRT, SFT or SRT? To me, at .050 is at .050 and seat to seat is seat to seat timing. Once the clearance is taken up, the lifter has no idea.
I'm glad you took the BM comment for what it was, a desperate attempt at humor.

As far as your #1 question, it's because you run a fair amount of static CR. It helps the vacuum and idle, but on pump fuel it gives me the willys unless the tune is perfect. Most guys cant, don't, or won't get it there.

#2, it doesn't know or care.