LSA Question
I believe wider LSA belongs more on a street car for better idle quality, or a light car, or a car that is going to use a power adder.
narrower LSA cam
Street car for manners. Yes! Oh yes.
Super charging, etc… yes.
I don't think LSA comes down to some formula "discovered" by Vizard. Vizard has become a snake oil salesman, tarnishing his legacy with crap like the "128" formula.
Correlation is not the same as causation.
Vizards 128 formula takes into account basically one thing, average torque production on a dyno. That’s what I don’t like about it. Unfortunately in the real world we have so many other variables to take into consideration (fuel mileage, idle quality, off idle drivability, vacuum for power brakes, just to name a few) that must also be considered.
Mean 416,
Where is your dyno testing [ or anyone else's ] that disproves the 128 rule????????????
The thing I think everyone misses or forgets is the formula is designed around a Chevy 350 engine. I don’t think he is a snake oil salesman since he is t selling anything, just his books. You would do the same and anyone that says they would t push there own books is just a dead *** lier saying so just to get a rise out of someone.
After all…. Only a fool throws money away.
Here’s a question…
Does the formula change for the CID
Does the ………………………. For the make of the engine?
What about valve angle?
It seems most times I read this topic, this is ignored and not spoken about. If the formula works for a SBC, what about a SBC with altered valve angles? How about a SB MoPar? Or a W9?
Not only are the valve angles a changer, *I Think*, what about intake runner length? If the runner is longer, would you need to tighten up the LSA?
Just food for thought…..
IMO, if Dans future cars comes with a 318, I don’t think anyone would know the difference with a 112 vs a 110 or a 110 vs a 108 LSA. Honestly, for what Dan wants and is doing, an off the shelf cam on a 110 in a 318 would be just fine.
If he wants an “Idle” sound at idle or a smooth idle, he will let us know. At a 110, it’ll sound like a typical muscle car hot rod most build.