Does this prove David Vizard's 128 lsa formula ?
273,
I don't know how many examples you need. Watch the Cattle Dog video again. DV has dyno examples in his books & also in tests done for magazine articles. He has consistently said that cams are generally being ground on LSAs that are too wide.
I would say Jon Kaase took his advice, winning the EMC with a cam that had a 98* LSA, 92* ICL. I suspect what made DV think/look at tighter LSAs was the Morris Mini engine, with which he has had a lot of experience. Even the stock low performance cam for those was on 107.5* LSA, & performance versions were even tighter. Those little engines punched above their weight...
Below is a test that was done loooooooooooong before 128 came to be a conversation piece, identical cams, 106,108,110 LSA tested.
273,
I don't know how many examples you need. Watch the Cattle Dog video again. DV has dyno examples in his books & also in tests done for magazine articles. He has consistently said that cams are generally being ground on LSAs that are too wide.
I would say Jon Kaase took his advice, winning the EMC with a cam that had a 98* LSA, 92* ICL. I suspect what made DV think/look at tighter LSAs was the Morris Mini engine, with which he has had a lot of experience. Even the stock low performance cam for those was on 107.5* LSA, & performance versions were even tighter. Those little engines punched above their weight...
Below is a test that was done loooooooooooong before 128 came to be a conversation piece, identical cams, 106,108,110 LSA tested.