Recent content by MESIMPSON

  1. M

    Why Does the Torque Curve Drop Off at Low RPM in a Typical Piston Engine?

    Good Stuff Marcusl. I was guessing it’s probably a combination of things. One thing I was wondering is whether the average volume of the combustion chamber has something to do with combustion completeness (efficiency). Assuming combustion occurs in the same time interval for a given fuel...
  2. M

    Why Does the Torque Curve Drop Off at Low RPM in a Typical Piston Engine?

    I’ve been searching for an answer to this question on the web for 3 hours. Thought I would find it quickly, but, noooooo. I’m trying to understand why crankshaft torque falls off at low RPM in normally aspirated piston engines. I think I understand the high end of the torque curve OK. At...