The MRA Riley was named for Moothart Racing (Denny Moothart, the team driver/owner) and Bob Riley, the designer. It is the prototype from which the Protofab series of SuperVee cars evolved. There were a total of eight Protofab cars built. This prototype was fabricated by Gary Pratt and raced in the 1979 SCCA Robert Bosch/VW Gold Cup professional series by Dennis Moothart. The car is full monocoque and is historically significant in that it was the very first all american built ground effects car. The engine is a 1.7 liter VW motor that only has two hours running time since a complete rebuild. The rebuild included all new valves, springs, and guides on the head. New pistons, wrist pins, connecting rods, and the forged crank was turned and balanced. Ignition points have been replaced with a Hall Effect Transducer. Wiring, gaskets, and hoses have all been replaced. The Kugelfischer mechanical fuel injection is original and in excellent condition. The Koni shocks were sent to Koni in Kentucky for rebuild. This car is competitive with the Ralt RT5 and is race ready.
This was the prototype car for the Protofab series of 8 SuperVees built for the SCCA Robert Bosch/VW Supervee Gold Cup series. This car raced the 1979 season where it entered only five of eight races and still finished sixth in the series. The first three placing cars ran all eight races. the next two cars both ran seven of eight races. With Dennis Moothart driving, the car finished 6th at Charlotte, 15th at Mossport, 8th at Michigan Intl., 4th at Brainerd, and 3rd at Watkins Glen in 1979.
Recent Competition History
6th place for the 1979 SCCA Robert Bosch/VW Gold Cup Series while running only 5 of the 8 scheduled races. It placed 3rd at Watkins Glen that year.