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Marren Motor Sports continues to offer race car preparation services at their new Oxford, Connecticut facility. Available services include:
Competition Engine Building
Ralph Porter, who races in SCCA’s Showroom Stock C class, relies on a Marren Motor Sports Mini Cooper S engine for competition use. His Mini (#32, shown above) used a Marren Motor Sports engine to win the SCCA Central Division Championship and to place second in the 2006 June Sprints. A long-time customer, Ralph also used a Marren Motor Sports engine in his Dodge Neon to win the 2001 and 2003 June Sprints. Ralph is a consistent top 10 finisher in national competition and has an impressive track record in SCCA competition. The top Mini Cooper S is being transformed into a Grand American ST-class racer.
Shown here is one of our race-winning Neon SOHC R/T engines. Marren Motor Sports engines dominated SCCA’s Neon Challenge and were used by almost half of the participants. This winning streak has continued in other SCCA classes, including SSB, SSC, T2, and others.
Richard Cullen’s Mini Cooper S leads the way during an SCCA Showroom Stock C race. Richard relies on Marren Motor Sports engines and technical support.
Dyno Testing and Engine Management Tuning
This Spec Racer Ford picked up an additional 3 HP after switching to a set of Marren Fuel Injection blueprinted injectors. Top Spec Racer Ford prep shops rely on Marren Fuel Injection’s services to provide consistent air/fuel ratios and make good torque. The Marren Motor Sports dyno, made by Mainline Dynomometer in Australia, has been configured with additional data acquisition channels, laboratory-grade air/fuel ratio monitoring, and ECU monitoring capabilities.
Race Car Construction and Preparation
This picture shows four Mini Cooper S racers being prepared by Marren Motor Sports. The two center Minis compete in SCCA Showroom Stock C with Marren Motor Sport engines, while the two outermost vehicles are being transformed into Grand American ST racers.
Fuel System Engineering
With 685 methanol-fueled horsepower on tap, Barry Goodyear’s open-wheel hill climb car (above) can accelerate to 100 mph from a standing start in just over 3 seconds. Marren Fuel Injection provided the fuel injectors and fuel pump, as well as technical assistance with engine management tuning.
Paul Dallenbach, the driver for the #98 Pike’s Peak racer (above), has a single ten minute window to reach the top of Pike’s Peak each year. Reliability is crucial, which is why he and car owner/builder Leonard Arnold chose Marren Fuel Injection to provide an intake manifold and technical support.
Al and Scott Wilson’s Colorado Outlaw racer gets sideways thanks to a set of matched fuel injectors from Marren Fuel Injection. The mini-sprint uses a Suzuki GSXR-1000 engine running on methanol, which makes injector choice a critical decision.
With the exception of the turbos and the throttle body, every piece of the induction system in this photo was designed and built by Marren Motor Sports. This 355 CID small block Chevrolet was fitted with twin turbochargers, twin ducted intercoolers, and a custom-built short-runner intake manifold. Marren Motor Sports also installed and tuned the Accel DFI engine management system to produce over 650 HP and 700 lb/ft of torque on pump gasoline. The vehicle that received this engine, a 1984 Pontiac Firebird, was completely redesigned to handle the additional performance. A ZF transmission from a Corvette and a custom Ford 9” rear axle with a Detroit Locker differential were incorporated, and a fuel system capable of supplying 800 horsepower was installed. With the exception of the custom-stitched leather interior, all work was done in-house by Marren Motor Sports.
This 1978 Porsche 911 Turbo, equipped with a MoTeC engine management system, suffered from lackluster performance and was almost undrivable. Marren Fuel Injection disassembled and rebuilt the fuel delivery system using braided stainless AN lines, and built a custom set of billet aluminum fuel rails to feed the 468 HP Boxer engine. After tuning, the Porsche was once again capable of blistering performance with excellent manners around town.
When Paul Sagun wanted to break the 300hp mark with his turbocharged Suzuki Hayabusa, he turned to Marren Fuel Injection for injector research. Marren Fuel Injection determined the optimum injector size for Paul’s project, allowing him to make 303hp at almost 11,000 RPM.
Research and Development
The SAE Clean Snowmobile Challenge is an engineering exercise in which students from various universities compete to modify a snowmobile for decreased emissions while maintaining or improving its performance. Marren Fuel Injection assisted members of the Minnesota State University, Mankato Clean Snowmobile team with injector test data as well as components for the project. The Minnesota State University team uses semi-direct fuel injection on a two stroke engine, an innovative design that displays their ingenuity.
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