I have asked this question to many people, including a GM emissions engineer, no one has been able to give me a satisfactory answer. (GM engineer " No...yes...I don't know." [one breath]).
The answer to this question will determine how I build the engine for my
67(402;4spd).
My theory is that if an engine is built to provide peak torque at a certain RPM, (say 3500) the peak will always occur at the same RPM, irregardless of throttle angle, though output will change.
The only real proof I have of this is changing carb CFM on my desktop dyno program, but doing so still assumes full throttle operation.
If my theory is correct, a person could build a very serious engine and get killer milage, provided that torque output at a very small throttle angle, is sufficient to keep the car at a steady speed. (75 MPH, assume no wind). I hope someone can give me some insight, thanks, Mike.
The answer to this question will determine how I build the engine for my
67(402;4spd).
My theory is that if an engine is built to provide peak torque at a certain RPM, (say 3500) the peak will always occur at the same RPM, irregardless of throttle angle, though output will change.
The only real proof I have of this is changing carb CFM on my desktop dyno program, but doing so still assumes full throttle operation.
If my theory is correct, a person could build a very serious engine and get killer milage, provided that torque output at a very small throttle angle, is sufficient to keep the car at a steady speed. (75 MPH, assume no wind). I hope someone can give me some insight, thanks, Mike.
