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STREET LEGAL STEEDA FORD MUSTANG: 8 SECOND QUARTER MILE WINNER AT MOD NATIONALS

Just Don’t Call It A Sleeper

Steeda Performance V8 Ford Mustang GT S550 Coyote Muscle Car Mod Nationals Winner
Image via Steeda Performance.

What happens when you try to build the world’s fastest naturally aspirated Ford Mustang GT? It blows up, that’s what happens. Just ask Steeda.

Way back in 2018, the Georgia-based speed shop decided to try and build the fastest naturally aspirated S550 Mustang GT, AKA the Steeda Silver Bullet. The car’s Coyote 5.0L V8 and ten-speed automatic transmission were the starting point for the project. In stock form, Steeda’s 2018 Mustang GT could cover the quarter-mile in 12 seconds.

From there, the engine was completely torn down. The team threw a ridiculous list of parts at the car, like a ported Cobra Jet intake, ported Air Flow Solutions cylinder heads, Stage 3 camshafts from Comp Cams, VMP throttle body, a Steeda Cold Air Intake, and American Racing long tube headers.

S550 Ford Mustang Silver Bullet S550 Steeda Performance Supercharged Coyote V8
Image via Steeda Performance.

Other drivetrain work included a new 10R80 10-speed transmission built by Midnight Performance with a Circle D torque converter and McLeod heavy-duty clutches. There’s a QA1 carbon-fiber driveshaft, Ford Performance severe-duty half shafts, and Ford Factory 3.15 rear gears as well.

Steeda also upgraded the suspension, steering rack, brakes, sway bar, shock mounts, bushings, links, and more. Steeda claims the car crushed the 60-foot like a big-blower car. There was weight savings from carbon fiber body panels and new wheels and tires. When all was said and done the 2018 Mustang hustled the quarter-mile in 9.76 seconds at 143 mph, a record that still stands to this day.

But that’s when things went awry.

As Scott Boda explains in the video below, the Steeda team tried mixing some fuel, and then blew an injector. And the event made the pistons look like the bottom of a worn out frying pan. While we’re sure that Steeda could have worked out the kinks, customer input had the company pursue a different direction.

and that meant forced induction.

Edelbrock got in touch with Steeda to apply the company’s new Mustang GT E-Force Stage 2 Street Supercharger Kit onto the street-legal dragster. After modifying the 2019 Coyote short block in the same manner as the car’s original engine, the team also added a 3-inch supercharger pulley, a 7-gallon trunk-mounted water tank for the supercharger, along with an upgraded torque converter optimized for supercharged applications.

Last weekend the Steeda Silver Bullet Ford Mustang set a new best time of 8.69 seconds at 157 mph. which is absolutely bonkers that Steeda could shave off a second in the ET, not to mention gaining an additional 14 mph in the speed trap.

This S550 Ford Mustang hooks and books now, but by far the most ridiculous part of it all, is that the car is still effectively street legal. To prove its effectiveness, Steeda took first place at the 2021 Mod Nationals in the Modular True Street Class this past weekend. Winning a whopping $1,300!

Written by Michael Accardi

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