Dyno results recently have show that the new McLaren added to the production stable is possibly sandbagging its’ power output. McLaren makes their power output for their cars a little less confusing than their competitors with using the power figure of the engine in the naming of the vehicle. The McLaren 720S engine is a 4.0-liter twin-turbo v8 that makes 720 metric horsepower at the crankshaft.Source:The Drive
The McLaren 720S with a 720 metric horsepower figure blows by the competition of the Ferrari 488 GTB and Lamborghini Huracan. BoostAddicts strapped down a McLaren 720S to a dyno fixure, what the shop found was that the McLaren laid down 700 horsepower to the rear wheel driver British vehicle.Source:AutoCar
700 horsepower at the wheels is very impressive but when you do the math for drivetrain loss which is normally calculated at 10-15%. If the McLaren was making 710-720 horsepower at the crank than the 720S should make roughly 600-640 at the wheels, but we are seeing numbers closer to 700 at the wheels.
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