PDR Diesel Inc. The turbo diesel performance specialists!

Duramax Fluid Dampr 6.6L 6.6L Duramax
Torsional Vibrations or harmonics can destroy crankshafts and bearings. These vibrations rob horsepower and torque from the engine. Stock dampers utilize rubber or elastomer to control torsional vibrations. The rubbery material not only breaks down over time, but limits the capabilities for the damper.

Fluidampr® uses a viscous silicone fluid, internal inertia ring and a laser sealed housing. Thier precision machined assembly is the most effective way to control torsional twisting.

Each time the air/fuel mixture inside a cylinder is ignited, the combustion event creates a torque spike that is applied to the crankshaft through the pistons and rods. This torque spike is so severe that it not only turns the crankshaft, it actually twists the crankshaft ahead of its normal rotation and then the crankshaft rebounds. This twisting action is known as torsional vibration. When these torque spikes get into phase with the natural frequency of the crankshaft assembly in the engine, critical torsional harmonic vibrations occur that are destructive to the bearings and crankshaft.