Seth-Hunter’s MMR Pro Street Mustang Tops 242 MPH In Joliet

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The Modular Mustang Racing team, with car owner Mark Luton and driver Greg Seth-Hunter, made the long trek (2,000 miles and change, or roughly 30-hours) drive from their Simi Valley, Calif. home base to the Route 66 Raceway near Chicago last weekend to tangle with some of the East coast’s finest Pro Street racers at the NMRA/NMCA Super Bowl of Street Legal Drag Racing. While their competitive presence alone was noteworthy in and of itself, many were tuned in to the performance and potential record-shattering capabilities of the MMR Ford Mustang, given the right conditions on what has always been known as one of the quickest quarter miles in the nation.

DSC_2536Less than two months ago, longtime Modular engine guru John Mihovetz reset the all-time elapsed time record with the production Ford engine, running 6.055 at 241 mph at the NMCA WEST Lucas Oil West Coast Shootout in Pomona, and at Joliet, that was the magic number that the fans, the media, and certainly the MMR gang were hoping to see from the bright red rocket. Unfortunately, the weekend’s prime qualifying session for the Pro Street racers, scheduled to go off under the lights on Friday evening, was bumped to Saturday morning, ending Seth-Hunters’ (and the rest of the racers in the class) best chance to throw down a number.

Luton and Seth-Hunter didn’t leave empty-handed however, as during that Saturday morning make-up session, the 330-cubic inch Mustang rocketed to a 6.094-second pass at 242.06 mph, eclipsing the previous mark of 241 mph set previously by both they and Mihovetz and coming up just .01-seconds short of their own 6.08 previous best.

The MMR Mustang crosses the scales at just over 2,500 pounds, and utilizes a GT500 factory alloy block upgraded with MMR’s proprietary Pro Mod sleeves. MMR heavily ports (but does not weld) the GT500 DOHC cylinder heads that are paired with MMR custom camshafts and valvetrain components. The whole combo is paired with two 88mm Garrett GTX4718R turbos.

Moving from reporting mode to commentary mode for just a second: MMR builds and sells turnkey crate engines just like the one in their Pro Street Mustang for around $38,000, which, going by different numbers commonly thrown around, is roughly a third of what a competitive Pro Stock motor would run you. Then consider that this combo is nearly half a second quicker and isn’t just based off a production engine, but literally is a production engine that fans can relate to. Need we say any more to prove our point?

About the author

Andrew Wolf

Andrew has been involved in motorsports from a very young age. Over the years, he has photographed several major auto racing events, sports, news journalism, portraiture, and everything in between. After working with the Power Automedia staff for some time on a freelance basis, Andrew joined the team in 2010.
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