Jef Groff professional stunt man in the film industry for the past 10 years here in Southern California, where he developed a love for drifting among stunting motorcycles. One great guy who has such passion and dedication both on and
The Kato Racing LS7 project began just like any other e46 M3 that rolled into Castro Motorsport to become a racecar. The factory S54 engine and 6 speed transmission was not enough for the competition Kato aimed for. Once it fell
https://www.stanceworks.com/2014/07/no-need-to-grow-up-the-castro-motorsport-480-horsepower-turbocharged-e34-wagon/ Engine: 2.8 Liter M52B28 Vanos Transmission: ZF310 5 speed transmission from a ’95 E36 M3 Shifter: AKG Short Shifter Kit Flywheel/Clutch: F1 Racing Stage 3 lightweight flywheel & clutch kit Differential: 2.93:1 Limited Slip custom built with 40%
Engine: 3.0L S50 Inline 6 conversion from a ’95 E36 M3
Transmission: ZF310 5 speed transmission from a ’95 E36 M3
Shifter: Ralco short throw shift kit
Flywheel/Clutch: F1 Racing Stage 1 lightweight flywheel & clutch kit
Differential: 2.93:1 Limited Slip from an ’88 E30 325es
Bushings: Replaced all bushings with Ireland Engineering polyurethane units
Suspension: Ground Control Coil-over conversion: 650# front / 800# rear
Sway Bars: Ireland Engineering 22mm front/ 19mm rear swaybars
Steering: ’95 E36 M3 Quick ratio steering rack
Engine Modifications: Castro Motorsport 2 piece fiberglass air intake box, Custom dual 2.25″ mandrel bent high-flow performance exhaust system built by Castro Motorsport, Custom performance dyno tune
Brakes: Factory E30 M3 spec, with new Brembo blank rotors, Pagid performance brake pads, Ireland Engineering stainless steel brake lines and Ate Super Blue racing brake fluid
Wheels: Staggered offset 17×8.5 BBS CH
Tires: 235/40/17 Federal 595