So I work as a dynomometer technician, and basically spend my day answering questions completely unrelated to the dyno (I wired fuel injectors from a dodge into this Hyundai and now it wont work, what's wrong with my dyno?). Some of these people amaze me at the fact that they are known names in the industry.
I just spoke with a man who has no clue what torque is. Literally. No. Clue. So much so that he was unclear on the fact that the cars engine produced torque (yes I am freaking serious!).
"So if you apply 300 lb/ft of torque to my engine at 3000 rpm vs. 300 lb/ft at 6000 rpm, that's like half the force because the engine is spinning twice as fast, right?"
- I attempted to explain that the dyno measures torque, but does not produce a specific amount of torque to be applied to the engine. I also attempted to explain that the torque is being produced BY the engine and then translated through a transmission, driveshaft, differential, axle, and finally wheels and tires before we read the output.
"Yea, but, if it says 300 lb/ft at 6000 rpm that's really half of what it is making at 3000 rpm right?"
- I attempted to explain that the measurement of torque being lb/ft is a constant unit of measurement, much like 1 foot is always 12 inches, 1 lb/ft is always 1 lb/ft whether its at 100 rpm or 1,000,000 rpm.
"Okay so if I were to like freeze a second of time and measure that torque number against a different second of time they should match?"
- Wow, okay, pure genius here. No, No they should not. An attempt at explaining how many variables (amount of air, fuel, piston shape, head shape, valve size, lift duration, cam profile, etc etc.) can effect a torque curve pretty much got the answer of, "oh...okay. Thanks"
Yea, how do you have a job?