Cam Experts: Lobe Separation Angle?
Sure it matters. It doesn't matter "near as much" though for a 100% street car. You start getting into dual purpose and race only stuff, then is when the biggest differences occur.
If it’s a 100% street car then why not use an OE cam.
I’ve posted this before but I’ll do it again.
The 110 LSA became the defacto LSA for a couple of reasons.
The number one being it’s easier to fit a 110 LSA on the cores. You get below 108 or over 112 and you cut the number of useable cores by more than half.
Claiming any LSA works across all engine families is just nonsense.
If you want factory performance use factory parts.
If you can’t deal with a tight LSA because it can’t be made to idle that means the end user needs to learn to tune.
As I said earlier even Pro Stock would use much tighter LSA’s but they do not because the power gains from the tighter LSA’s do not make up for the loss of combustion efficiency that happens when you need deep valve notches in the pistons for the tighter LSA, and probably the additional dome on the piston to get the compression ratio back up from the deeper notches.
Lots of guys love to use Pro Stock as an example of wide LSA’s and big power but they’d be incorrect as to why it’s done.
Edit: I forgot to say again that compression ratio (both calculated and effective) is critical to not only LSA but to all cam timing events. Low compression and wide LSA’s don’t play well together.