With the current S550 Ford Mustang on its way out, the Blue Oval has given us all we could wish for, from the independent rear suspension the new platform introduced in 2014 to the supercharged, dual-clutch, track-ready Shelby GT500. Somewhere on the list we find the new-for-2021MY Mach 1, which replaced the GT350 while mixing some of its parts with GT500 and Mustang GT bits. And while the Mach 1 was to remain naturally aspirated, tuners like Hennessey beg to differ, hence the supercharged iteration that brought us here.
Skipping the flat-plane crankshaft of the GT350’s 5.2L V8, the Mach 1 comes with a pumped-up iteration of the GT’s 5.0L Coyote, which delivers 480 HP (a 20-pony upgrade).
Well, this blower-tastic iteration from the Texan developer brings the party to 800 horsepower, mathing the Hellcat Redeye on a car that’s considerably friendlier to the scales.
What about the soundtrack of the supercharged Mustang Mach 1?
The aural part of the experience tends to be more subjective than the rest of it. However, in the piece of footage at the bottom of the page, Hennessey delivers a proper soundcheck, so you can draw your own conclusion on how the forced induction has changed the voice of the Coyote.
The Lone Star State developer explains this package is simialr to the one offered for the Mustang GT.
This means we’re dealing with a Stage Two blower, an air-to-water intercooler, upgraded injectors and a high-flow air induction system. The exact numbers for the GT pack are 808 hp at 7,200 rpm and 677 lb-ft of twist.
As for how this translates into velocity, the GT needs 3.3s for the 0-60 mph (96 km/h) sprint and can cover the quarter-mile in 10.7 seconds and needs. Top speed? In excess of 200 mph (322 km/h).
There’s no mention of a transmission upgrade and while the Mach 1 can be had with the six-speed manual or the ten-speed automatic, the example in the vid below comes with a clutch.
Of course, some will always prefer the classic Mach 1 to the contemporary pony, with this 1969 example—that was the first year of production for the special—showing us a brilliant place to kick off a restoration/restomodding project.