Sneak Peek: Dino Crescentini’s StopTech Porsche 911 GT3

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Serviceability is key at all levels of racing, and that shows in this vehicle’s preparation.  AN fittings connect nearly every line, mil-spec connectors are used to facilitate service, as well as provide extra reliability, and safety wire and paint exist throughout the vehicle.  GMG Racing takes its preparation seriously, and any track time that is reduced by a simple electrical connection failure, or fluid leak from a sub-par fitting is absolutely unacceptable. 

 

GMG Racing StopTech Porsche 911 Mil-spec connector Race car

This mil-spec “cannon plug” connector allows the engine harness to be completely disconnected from the chassis by twisting only 2 collars, greatly simplifying service should the team need to remove the engine.

Under Dino’s car are World Challenge spec Pirelli PZero racing slicks, with 275/645-18 front and 315/675-18 rear steamrollers mounted on BBS 18×10 and 18×12 forged center lock racing wheels.  Damping is provided by Öhlin TTX46MT struts up front and TTX40 shocks out back.  These TTX dampers are 4-way adjustable, zero displacement through-rod dampers.  Through-rod dampers like the TTX40/TTX46MT have no shaft displacement when the suspension is moving because the shaft extends all the way through the damper’s body, resulting in zero gas force on the shaft.  Eibach ERS race springs, ranging between 700 to 1100 lb/inch front and 800 to 1200 lb/inch rear hold the car up, depending on track surface and driver preference.  Aero work is limited by the rules to a simple, yet effective carbon fiber front splitter by GMG and World Challenge spec rear wing.  The GMG splitter is made of carbon fiber with honey comb construction for light weight and superior strength.  The front under tray also features integrated brake duct channels, which force feed air to the back of the StopTech brakes.

 

GMG Racing StopTech Porsche 911 GT3 Pirelli PZero racing slick BBS wheel World Challenge
World Challenge spec Pirelli PZero racing slicks, with 275/645-18 front and 315/675-18 rear steamrollers mounted on BBS 18×10 and 18×12 forged center lock racing wheels.  StopTech brakes nearly fill the 18″ wheels entirely.

 

GMG Racing StopTech Porsche 911 GT3 World Challenge Ohlins TTX40 TTX46MT racing shock

Öhlins TTX4MT struts allow for 4 way independent adjustability and the through-rod design of these dampers means zero shaft displacement, resulting in no gas force exerted on the shaft.  Front spring rates range from 700lb/in to 1100lb/in and the rear ranges between 800lb/in to 1200lb/in.

 

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