This is probably obvious but what is it about other carbs, like Webers, that makes them give horse power gains vs. stock? Is it that they have jets capable of higher fuel flow and higher CFM or is it the fuel+air mixing?
Here's my dilemma: you are not always flooring the throttle. Actually it is wasteful, right? There is a point where you get diminishing returns on acceleration even before the pedal gets to the metal. Which means that there's something about the engine displacement limiting you that is not accomplished by giving it more fuel and air. So how do the Webers and Holleys do it?
Let me wander a bit...get a little quantitative
-1 cubic foot is about (30cm)^3 = 27000cm3
-1 liter = 1000cm3
Therefore: 1CF = 27L
-Keihin carb is say 220-240CFM (based post read) = 5940-6480 L per min
-2 L liter engine draws only 1L air (fuel very minute) per revolution because intate + compression + compustion + exhaust is 2 revolutions per cylinder.
At 6000RPM, a 2L engine draws 6000 L air which is right at the the limits of the 220-240 CFM carb. But then in the 1000-4000RPM range its not like the carb is maxed out. If the engine can chomp it and wants more the carb can give it, right? You are welcome to tell me its not a perfect world and that operational limits dont dictate sub-limit efficiency of 100%. Of what though? Supplying transient demand (during acceleration)?.
Maybe I'm looking at it wrong. I know not everything is about numbers and limits. In that case what are the designs that enable HP and acceleration gains based on all the posts I saw. After all, what use are horses if you cant get better acceleration or better performance at any load bearing operation. Unless all you want is greater max speed. I know those are not oranges to oranges either due to other factors.
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