MAHLE Motorsport Releases Spec-Mazda MX-5 Miata Forged Piston

Those who race in any spec series are doing so for one major reason: reduced costs to campaign a race car. Spec Mazda MX-5 Miata racing is one of the most inexpensive series out there and is based on the reliable NC chassis in production from 2006 to 2015. Mazda Motorsports identified a need in the spec-racing market and partnered with MAHLE Motorsport to develop a forged piston, that will boost the reliability game and keep racers from an unexpected DNF on the race track. 

MAHLE Motorsport collaborated with Mazda Motorsports to develop forged pistons to meet the national rules and spec parts criteria for the 2006-2015 Mazda MX-5 Miata in SCCA and NASA.

MAHLE is a worldwide leader in developing racing pistons. Its catalog ranges from OEM-spec to wild, uncorked products for race cars measured in the thousands of horsepower. MAHLE worked closely with Mazda Motorsports to develop a piston to outperform everything else but is still able to meet the national rules and spec parts criteria for the 2006-2015 Mazda MX-5 Miata race cars.

The piston is a MAHLE proprietary design, which uses special materials and coatings to give racers the edge they need in a very closely matched competition. The new Spec Mazda MX-5 Miata piston is forged from 4032 alloy, meaning it’s far stronger and can be pushed harder than a cast piston. The MAHLE piston also features a GRAFAL anti-friction skirt coating to reduce drag and any wearing on the cylinder bore to maintain compression over time. A phosphate dry-film lubricant has been added to pin bores to prevent galling as well as the ring grooves preventing micro-welding. The forged piston also features a machined crown for the very tight tolerances of motorsports applications, all co-developed and approved by Mazda Motorsports for competition.

“We were able to build a piston with MAHLE that we feel will have unmatched performance and durability and meet our pillars for the Miata MX-5 spec race program to be affordable, reliable, tech-able, and fun-to-drive,” states Josh Smith, Mazda Motorsports technical specialist, Motorsports, Mazda North American Operations.

The new MAHLE Motorsport piston for Spec Mazda MX-5 Miata is approved for use in all existing spec events in SCCA and NASA (ST5). The piston features specific markings that allow race tech inspectors to identify this competition-approved part quickly and easily. With more spec events planned for 2020 in American Endurance Racing, ChampCar, and World Racing League, this piston couldn’t have been released at a better time.

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About the author

Dave Pankew

Dave has been a gearhead forever and bought his first car at only 15. Since then he has owned, built and raced over 60 cars, turning his obsession into a career becoming Editor-in-Chief of a tuner magazine nearly 20 years ago.
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