No Free Lunch, hp cid torque gearing

I want to show how these are interrelated, this ain't meant to be best way and is obviously theoretical, in the real world there's so many variables so here most everything is assumed to be same VE% and efficiency.

First off need to define hp, most here seem to think torque and hp do two different things torque is basically the output of one revolution and hp is all the revolutions added up. Hp is the combined ability of torque and rpm, why is rpm equal to torque cause if one engine is doing 500 lbs-ft per Rev and second is doing 250 lbs-ft per rev but doing twice the revs. Both are doing the same work it just takes the second two revs in the
same instance of time as the first engine. Torque over time does everything aka drive accelerate tow etc.. and we call that hp.

Most engines we use for our cars efficiency is very similar so the fuel and air required per hp is fairly narrow in range. So no matter the static displacement aka 340 426 440 etc.. The engines have to displace a similar amount of air "cfm" dynamically (running) for same hp. So in other words for a given hp all engines have to displace the same amount of air no matter there static displacement. So say 400hp is about 550 cfm No matter what static displace it will have turn a certain rpm to displace 550 cfm (rpm x Cid /3456 =cfm) ve% efficiency etc. will effect rpm eg. 318 @ 6000 rpm or a 440 @ 4300 rpm.

Torque is basically a single power stroke so the more the displacement more
torque per stroke. Most seem to think longer stroke in same displace will produce more torque, true it will have a greater multiplying effect but it will have a smaller piston which has less surface area therefore less downward force to be multiplied. Also Torque per Cid is also happens in a very narrow range 1:1 - 1.45:1 lbs-ft per Cid if average guy can do 1.15-1.25:1 your doing pretty good.

So, so far it takes a certain amount fuel and air within a narrow range and a engine will have to dynamically "rpm" displace the air which will make lbs-ft:cid per rev in a somewhat narrow range and ve% and Cr having a lot to do with that.

Next is gearing, if geared for max performance or proportional compromised, torque to the ground should be similar between engine of different sizes with similar hp it's torque per Cid ratio matters not overall torque numbers especially when comparing vastly different displacement.

Obviously In the real world there's so many varying factors, but there's no free lunch if an engine makes more hp has to be from being more efficient and or more fuel and air. For any given hp if done right displacement torque gearing should cancel each other out for the most part at least that's how I see it.