Video: 2015 Mustang Whipple Dyno

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Tuned Twin-Screw

Lund Racing custom-tunes Lethal Performance’s Whipple-blown GT

By Steve Turner

More power is never enough, and too much power is just right. That might just be the motto of any modern Mustang enthusiast, but it’s definitely the credo of our friends at Lethal Performance. When we last hit the dyno at Power by the Hour with the company’s 2015 Mustang GT project car, it had just received one of the first Whipple Superchargers’ 2.9-liter supercharger kits for the latest Mustang GT.

With the out-of-the-box Whipple calibration, Lethal Performance’s 2015 Mustang GT produced 700.51 horsepower and 521.85 lb-ft of torque at the rear wheels on the Dynojet at Power by the Hour in Boynton Beach, Florida.
With the out-of-the-box Whipple calibration, Lethal Performance’s 2015 Mustang GT produced 700.51 horsepower and 521.85 lb-ft of torque at the rear wheels on the Dynojet at Power by the Hour in Boynton Beach, Florida.

With the new supercharger pushing 11 psi and the Whipple-supplied calibration in the TriCor PCM, the Lethal GT put down 700.51 horsepower and 521.85 lb-ft of torque. Compared it the baseline of 434.56 horsepower and 403.85 lb-ft of torque, the blower tacked on peak-to-peak gains of 265.89 horsepower and 118 lb-ft of torque.

Since that time, the Lethal camp turned the supercharged S550 over to the tuning gurus at Lund Racing. They were charged with squeezing even more performance out of the combo. Keep in mind this is a stock engine with bolt-on mods and a supercharger kit, so longevity means tuning a good fuel are critical.

Running VP MS109 fuel, the car laid down stout rear-wheel results of 805 horsepower and 618 lb-ft of torque on 14 pounds of boost. You can watch the dyno run right here…

The results are definitely impressive, but this is just the beginning for the Lethal 2015 Mustang GT. The company has plans for more boost and, eventually, a built engine to support huge power, so we can’t wait to see the outer limits of the S550 platform.

Since we last checked in with Lethal Performance’s supercharged 2015 Mustang GT, Ken Bjonnes of Lund Racing has worked his magic behind the keyboard to take its rear-wheel output up to 805 rear-wheel horsepower and 618 lb-ft of torque, which accounts for peak-to-peak gains of over 105 horsepower and 96 lb-ft of torque.
Since we last checked in with Lethal Performance’s supercharged 2015 Mustang GT, Ken Bjonnes of Lund Racing has worked his magic behind the keyboard to take its rear-wheel output up to 805 rear-wheel horsepower and 618 lb-ft of torque, which accounts for peak-to-peak gains of over 105 horsepower and 96 lb-ft of torque.

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