While conventional wisdom maintains that 1:1 is the “ideal” drive ratio at which to run on a dynamometer (usually top gear), doing so comes with a mighty big risk: tire destruction. With a 5-speed transmission with no overdrive gear, for instance, the wheels are turning a lot faster at peak RPM in fifth gear than they would at fourth.
That sort of abuse can turn a tire to confetti in a right hurry.
And that’s exactly what happens in the video above, which shows a dyno pull from a fifth-generation Ford Mustang with a 200-shot of nitrous. Everything starts off routine, with the Ford Mustang shifting through gears on the dyno platform up to peak RPM, when suddenly, under deceleration, the rear driver’s side tire explodes, taking half of the rear bumper cover with it.
The damages incurred by this unsuspecting Ford Mustang are ghastly, with the rear fender on the side of the detonation showing some serious injury. That’s apart from the more obvious to-do items now on this Ford Mustang owner’s list: replacing the tires, and inspecting the wheel rim.
We wish the owner the best of luck with regard to getting his pony car up and running again.