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John Zappia won the Goldenstates but bent rods on two separate runs. Ahead of the Westernationals, the team has been refining the Fuchs Monaro's tune-up for reliability while Zappia works on improving his reaction times.

Speedmaster's 2016 milestones included expanding to 100,000 SKUs, winning two SEMA Global Media Awards, and securing a ninth consecutive ANDRA Top Doorslammer Championship.

John Zappia took top qualifier at the SA Summer Nationals with a 4.996 at 205.01 mph, extending his ANDRA Top Doorslammer Championship lead to 237 points with four rounds remaining.

John Zappia swept the Alice Springs Desert Nationals with top qualifying, event victory, and new track records, moving to the top of the ANDRA Top Doorslammer Championship standings on 184 points.

John Zappia clean-swept the Top Doorslammer category at the Alice Springs Desert Nationals, resetting both the track speed and elapsed time records on his way to the event victory over Ben Bray.

John Zappia reset the Hidden Valley Drag Strip track record with a 5.750-second pass in Round 1, but tyre shake in the semi-final ended his run at the opening round of the ANDRA Top Doorslammer Championship in Darwin.

At the 2016 City of Ipswich Winternationals, Speedmaster-backed teams Zappia Racing and Spinozzi Racing competed through engine failures and mechanical setbacks across the final championship round of the 400 Thunder season.

John Zappia secured the first-ever 400 Thunder Pro Slammer Championship at the 2016 Winternationals despite engine failures, a broken blower belt, and two complete engine changes across a grueling weekend at Willowbank Raceway.

John Zappia enters the 2016 City of Ipswich Winternationals as the top qualifier in seven of the last nine events. With both championship titles already in hand, the focus shifts to chasing the five-six barrier.

John Zappia clinched two championships in a single season: his ninth consecutive ANDRA Top Doorslammer title and the inaugural 400 Thunder Pro-Slammer Championship. The Speedmaster-supported driver now turns his attention to the Winternationals at Willowbank.

Clutch setup in professional drag racing is a mathematical exercise in managing three variables: engine power, clutch load, and available traction. Spinozzi Racing crew chief Michael Marriott explains the engineering behind base pressure, centrifugal force, and the between-rounds process that keeps a Pro Stock car consistent.

John Zappia, nine-time consecutive ANDRA Top Doorslammer Champion and Speedmaster-supported racer, breaks down the 2015/2016 season - from track records in Adelaide to the mechanical failures that tested his team's resolve.

Zappia Racing enters the final round of the 2015/2016 ANDRA Top Doorslammer Championship at Adelaide International Raceway with a commanding points lead. After a season marked by records and hard losses, the team is focused on closing out a ninth consecutive title.

John Zappia heads to the Australian Nationals at Calder Park leading the 2015/2016 ANDRA Top Doorslammer Championship. The event marks the first Nationals at the venue in fifteen years, with Zappia aiming to be the first Top Doorslammer team to run a five-second pass there.

Eight-time ANDRA Top Doorslammer champion John Zappia completed a flawless 2014-2015 season with a new national record of 5.639 seconds, defeating Ben Bray in the final at the FUCHS Winternationals.

John Zappia secured the FUCHS Winternationals Top Doorslammer title at Willowbank Raceway, qualifying first with three consecutive 5.7-second passes and taking the final with a 5.833 at 252.90 mph in the Speedmaster Monaro.

Reigning ANDRA Top Doorslammer champion John Zappia qualified second with a 5.928 and set the meeting's top speed of 249.3 mph at the Pro Showdown opening round in Perth. Component issues ended his elimination run, but the pace is set heading into the Westernationals.

Speedmaster announces its partnership with John Zappia, Australia's dominant Top Doorslammer competitor. The collaboration brings Procomp Electronics technology to Zappia's racing program.