Focusing on the “R” in the PRI show, ProCharger had their new supercharger gear drive units out in force, showcasing their use on a variety of racing engines, from an Ultra Street small-block Ford with an F-1X supercharger, all the way up to a Pro Mod BAE Hemi, with the big-boy F-3X-140 supercharger, making almost 3,500 horsepower.
“It’s a crankshaft mounted direct drive unit. It’s directly mounted to the crankshaft with bushings and couplers, and has a quick-change gearset internally in the unit, and has mounting options for all of our F-series race superchargers,” says ProCharger’s Sergio Shifman.
While Shifman admits that a gear drive unit by itself isn’t necessarily a new invention, the team at ProCharger have added features into their unit that aren’t found in other units on the market. “Our gear changes are a little simpler to perform than some of the others out there. You can change gears with the unit still mounted on the engine. That saves quite a bit of time, and can actually be done between rounds if necessary,” Shifman says.
Continuing their quest to make their gear drives more user-friendly, the engineers added both an accessory drive and method to turn the engine over, externally. “The accessory drive on the side of the unit allows you to mount a fuel pump, vacuum pump, oil pump, or even a magneto on the unit,” explains Shifman. “There’s also a provision on the backside of the gear drive unit to turn the engine over for valvetrain maintenance or any other engine maintenance that needs to be done.”