IND Distribution recently put the new G82-gen BMW M4 on the dyno, pre-break-in, to see how much power the standard 3.0 liter twin-turbocharged I6 actually makes. From the factory, BMW claims the regular-flavor M4 makes 473 horsepower and 406 lb-ft of torque. After the dyno test, the M4 makes 464.92 horsepower at 6,780 rpm, and 408.55 lb-ft of torque at 4,530 rpm.
Of course, those numbers are smaller than the stock claimed figures but the IND dyno-tested figures are wheel-power and wheel-torque figures. To figure out how much power the engine actually makes, you must then add about 15-percent to those dyno figures, to account for drivetrain loss. With that 15-percent added, the BMW M4’s engine actually makes 547 horsepower and 480 lb-ft.
Remember, this is also on a pre-break-in car, meaning the engine hasn’t even reached its break-in mileage yet. So its power is likely to go up a bit, as the engine gets a few miles on it.
Any soon-to-be BMW M3/BMW M4 owners should be very happy right now, learning that their car actually has quite a bit more power than the brand claims. Of course, the same goes for every Mercedes-AMG and Audi Sport product, so it’s not as if BMW M4 owners now know they have more power than their rivals’ cars. It’s still cool to know, though.
[Source: IND Distribution]