Camshafts, idle quality, driveability and LSA-REAL WORLD EXP and OPINION
YR maybe I'm posing the wrong question. Would you explain what causes a rough idle ? J.Rob
Intake valve closing has a bigger affect on idle than does LSA.
If you read the article that IQ posted it says that right in the text.
As I said, the article has faults, such as using a 104 LSA on those heads. If I was shopping for a cam and someone spec'd that LSA, especially with a split duration, they'd have some serious explaining to do.
That engine with a 107-108 LSA and a single pattern cam would have whooped all comers, had a better idle than the 104 and just as much or more big end HP than all the others.
Again, it's about the combo, not just LSA.
Read the article. Closely. You find it supports my points to a fault.