This time of year we get a lot of questions about tuning up carburetors.  Most engine building and fellow racers will ask about tuning indicators to help change the tune-up.  EGT (exhau…

JR Race Car is currently the manufacturer for the Hercules Chassis, Shockwave Clutches. As an engine builder, JR Race Car has made the ZR, and ZR-4 and Titan Engines (with roller lifter technolo…

In 1992, JR Race Car began manufacturing parts for the newly accepted NHRA Junior Drag Racing. JR Race Car initially offered components such as turn key Jr dragster chassis, engines, clutches and…

The CVT clutch system is a simple system. The clutch balances the engine RPM with the jack shaft RPM, that is it. All the clutch does is keep the balance between engine and jack shaft.Starting f…