Lingenfelter C6 ZR1 14% Overdrive Balancer

This harmonic balancer kit will increase boost by raising the RPM of your supercharger by overdriving it from the harmonic balancer. This kit does not replace the driven supercharger pulley on the supercharger snout. 

The installation will require ECM programming to adjust ECM overboost limits. The overdrive harmonic balancer used alone will overdrive the supercharger 14%. The balancer can also be used in conjunction with the Lingenfelter 2.60 inch diameter supercharger driven pulley upgrade kit for higher boost levels of 14-15 lbs but would require higher octane fuel. 

This balancer upgrade overdrives the speed of the power steering pump and the water pump on the LS9 engine because they are all driven from the same pulley and is not recommended for road racing or sustained high rpm applications. For these applications LPE recommends the 2.60 diameter supercharger driven pulley upgrade kit L250090309 that will overdrive the supercharger 19%. 

Parts included in kit:
- Lingenfelter ATI overdrive harmonic - balancer hub powder coated black - 11 rib 
- Balancer hub has a keyway to accept the factory crank key
- Installation kit includes new crankshaft bolt and friction washer* 
*Torque bolt to 35 lbs ft + 140 degrees