Detroit 2013: Mazda6 Grand-Am Racecar

By John Beltz Snyder

January 14, 2013

Mazda has its diesel-powered Grand-Am racecar, raced by SpeedSource engineering, on the show floor at the 2013 North American International Auto Show in Detroit. We found it particularly cool-looking, so we snapped some shots of it.
Next to it was an informational placard, which offered up the following information about the car:


Mazda6 Grand-Am Road Racing Series Rolex GX Championship Racecar

Jonathan Bomarito, Sylvian Tremblay
SpeedSource Engineering (Coral Springs, Folrida)
- Skyactiv-D 2.2-liter clean diesel engine
- 380 horsepower / 450 pound-feet of torque @ 5200 rpm
- Four-cylinder, dual compound turbo with encrypted ECU including: rev limiter, pit speed limiter, fuel trim
- SpeedSource / Riley Technologies steel tube frame built to GA standards with 14.5-gallon fuel cell
- Vehicle Weight: 2450 pounds
- Six-speed sequential Emco transaxle with no-lift shift
- Double wishbones, Dynamic Suspension spring damper units
- Multiple spring rate options front and rear
- Mazdaspeed carbon fiber body
- Rear wing with carbon fiber end plates
- Cockpit-adjustable bias
- Alcon calipers, vented, steel
Cockpit Safety
- Sparco carbon fiber seat
- Front: 11”w x 18”d
- Rear: 12”w x 18”d
- BBS single-piece wheels
- Continental racing tires
- Front width: 74 inches
- Rear width: 74 inches
- Wheelbase: 111.4 inches
SpeedSource Engineering Quick Facts:
- 2008 and 2010 Rolex 24 at Daytona GT Class Champion
- 2010 Grand-Am Road Racing Rolex GT Team Champions (SpeedSource Engineering)
- 2010 Grand-Am Road Racing Rolex GT Rookie of the Year (Jonathan Bomarito)