Understanding BMEP  @Mac’s Motor City Garage

Understanding BMEP @Mac’s Motor City Garage

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BMEP—that’s short for Brake Mean Effective Pressure—is an important yardstick in engine development. Here’s Jason Fenske of Engineering Explained to sort it out for us.

There is more than one way, naturally, to consider the potential work we can perform when we combust fuel and air in the cylinders of a piston engine. One familiar method includes measuring the torque produced at the crankshaft, as we do on the dynamometer, which we can then state as pound-feet (English) or newton-meters (SI) units of rotational force.

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