Street 360 W/.528" P.S. Cam

Hysteric said

More food for thought:

Vizard on 106* LSA vs 112* LSA in a BBC

All 9 pages of it: Here are the opening salvos'

Mike Jones:

"Pretend the story was written by someone you've never heard of.
How does it match what you've seen in the real world.

I've done many dyno tests were we change nothing but LSA, and then move each cam around to where it runs the best. I've come to different conclusions then David."

UDHarold:

"My opinion is that you should buy whatever Dave Vizard recommends, because you probably deserve it.......
Tell your cam man what LSA you want, and he will grind it for you.
This way, your car will run its' fastest.
However, I recommend everywhere from 107 to 118, just depending."

:rofl:

Click to expand...

Notice no quotes from Joe Sherman's Racing Engines.

Everyone seems to be arguing a strawman version of Vizards point.
Weaker heads per cid generally needs a tighter lsa.
His point for general aftermarket cams people tend to pick by duration so cam companies run a wider lsa to give a customer an generally acceptable street overlap.
He's generally saying for a given overlap a tighter lsa and less duration would probably give better results for the average street engine.

Not saying DV is the ultimate word on cams, engines etc.. but for novice he's basically the only voice out there and the average dude ain't gonna be led to far astray.