Stroker specific cams?
OK, just one more thing that influences LSA.... or maybe I should say changes things in a way that ends up with a wider LSA. Ditto for emissions... but I don't need to guess where your thoughts are on THAT! LOL
Having more gears always helps in a lot of way. Since turbo rally cars have to run restrictors, they moved to 6 and 7 speed trannies and had electronic paddle shifters at least 15 years ago. I rented a 2018 Ford Expedition last fall... 2.7L turbo with a 10 speed auto trans!
100% FACT. Less gears means you move the cam timing to flatten out the power curve, which opens up the LSA.
Funny story. I was in the local speed shop bench racing a couple of friends. Two other guys walk in to buy some spark plugs. I had talked to them many times at the track so we started talking. They were on their way back to the dyno. They had been on the dyno all day the day before and all of that day. They were almost done, but needed more plugs to finish up.
I asked what the engine did. I knew it was 500 plus inches, but not the exact displacement. This is 1987. Alcohol injected BBC. They said it went 990 at 7000, but they were going to knock it back to 880-900ish so they could put more area under the curve and move peak down.
I'm like why would you do that, after all that work to make power. He said one word...powerglide.
They had switched from a TH to a PG and figured two gears would be faster with less HP and a broader power curve.
I still say he was nuts, because we all know if you can get it hooked, three gears is faster than two.
Sadly, the guy who owned and drove the car killed himself in a single car drunk driving crash. I think they made about 5 shake down runs on it before he died.
Just pointing out that gears make cam timing changes that end up opening the LSA.
I also think about over head cams. You can move the cams where you want. And that moves the LSA, and changes the cam timing. One always follows the other.
