340 Vs 360

318willrun said

only about 85 % (on average) of what is brought into the cylinder is ACTUALLY burned. The 340 does about 15-20 % more cfm's at 5000 rpm's. Hmmmmmmmmmmm.?????......... So if a 340 is actually only consuming 84%, and a person can get the 318 to burn 98 %, given the fact that heads, cam, intake/carb and exhaust are equal, then the 318 does NOT need to "twist higher". You see, on the dyno, cfm's are measured, efficiency is NOT!!!!!! That's why gross horsepower went away and net came into play. Never mind, I should start a thread called "new light"..... and maybe I will..... hmmmm

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Stoichiometric ratio allows 100% of oxygen to be burned during combustion.

A dyno doesn't measure CFM, it measures torque output and RPM (and horsepower as a result)

CFM is a measurement of airflow, often used to estimate volumetric efficiency.

Gross horsepower is a measurement of horsepower with no ancillaries such as water pump, oil pump, radiator fan, power steering pump etc.

Net horsepower is the engine's output as it would realistically be to the transmission in an actual car, with all of the above power-sapping necessities connected

Everything being equal, (proportionate to displacement) A larger motor will always produce more overall torque than a smaller motor. This is scientific fact and cannot be refuted.