Is More Flow Better, Is The Smallest Intake Port That Flows The Most The Best
Is the cylinder still filling as the piston passes BDC and returns to TDC? Does that column of air and fuel have inertia and does it still continue to fill the cylinder until the valve closes?
I would think the column of air would be like a freight train hard to get going but once going hard to stop, if having problems filling as valve begins to close wouldn't that be the port choking it in some way ?
All these things you need to think about if you want to build power. Here's a thought what happens with you put a much bigger head with a much bigger valve and a big manifold and a big carb on that same piston speed and demand generated? Ever thought about that?
Yes I have Sir :) the way I see things is I and most others is stuck with what's available ootb or stock heads in mainly stock form and to most street manners are generally important in various degrees, so for most people the question is what heads will allow me to accomplish my goals with the smallest cam within reason.
Eg. Say 360 hp 360 Is it a stock set of 302 with CR and duration cranked up or milder cammed eddy's which is the more streetable package ? Would it be better if we could optimize the port shape size per application yes of course, everything is a series of compromises, velocity is import but only one peice of the puzzle.
Bet more people have killed a lot of power over worrying about it and being ultra conservative in carb intake heads etc.. choices.
Vacuum plays a big part in vaporizing the fuel so you can burn it so does all that increase in size help that or worsen that?
Increase over optimal ? And it's only optimal by putting some kind of restriction / goal like eg. 360 hp, cause say I have a zero decked 360 short block with say a xe285hl cam do I care about vaporizing the fuel when I go from stock 302 to trick flows when I just gained 100 + hp ? So if the goal is to build the best most efficient engine at a certain hp and or e.t. Etc.. I'm sure it does.
Does the distillation temp of the fuel you use matter?
No idea
Now go and look at this engine and think about how the smaller carb ran the quickest, Idled the leanest while making 4.5 inches of vacuum at the top end.
How to Pick the Best Carburetor for a Street/Strip Car
There's more to making power than just airflow other wise the bigger carbs would have run quicker. Head Porters always talk about the air they never discuss the fuel.
And for a different combo could of went the other way unfortunately lot things need to be tested and tuned if you want to dial your combo in to perfection. Same with stall gears intake cams might have to try a couple.
