Fluidampr Viscous Crank Pulley (ALL 1.8T)


Why your engine needs a damper: Each time the air/fuel mixture inside a cylinder is ignited, the combustion that occurs creates a torque spike that is applied to the crankshaft through the piston and rod. 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 and forces get into phase with the natural frequency, critical torsional harmonic vibrations occur and can be seriously destructive to the bearings and the crankshaft. Dampers are designed to control those destructive vibrations.

Fluidampr 1.8T

Rubber VS Silicone Fluid: Critical harmonic vibrations occur numerous times in a engine’s operating range. Stock rubber and elastomer-type dampers are frequency sensitive “tuned absorbers”, and work at only one critical frequency. In the case of a stock rubber damper, it is tuned for a factory engine’s critical harmonic vibrations. If you change the mass of pistons, rods, or the crankshaft, you change the natural frequency of the crankshaft assembly; therefore, the stock damper is no longer tuned to the new frequency of vibration, and you may be headed for early failure of expensive engine components. Dampers also create heat while they work, and rubber is a poor dissipator of heat. This heat and the exposure to the elements deteriorates rubber, causing it to crack and change durometer, which then leads to inertia ring slippage, damper failure, uncontrolled torsional vibration, and costly engine parts breakage.

Add to Cart:

  • Model: 551201
  • Shipping Weight: 9lbs
  • Manufactured by: Fluidampr

Customer Reviews:

Displaying 1 to 2 (of 2 reviews)

by Rodney Lawrence
Date Added: 11/17/2013
I installed this damper on a high rev 2.1L stroker build. The pulley completely eliminated flywheel chatter at idle. It also helps smooth out revs a bit. Install is straightforward and it is a very high quality piece.

Rating: 5 of 5 Stars! [5 of 5 Stars!]

by Steve Vouyiouklis
Date Added: 07/16/2012
This may not seem like the first place to spend your money on but I'm thankful I did. Having the fluidampr on my car helped smooth out idle, chatter, and pull smoothly through the powerband. It will most definitely help with high revving motors that will be seeing track duty as well as your daily driver. Well worth the money!

Rating: 4 of 5 Stars! [4 of 5 Stars!]

Displaying 1 to 2 (of 2 reviews)



This product was added to our catalog on Wednesday 24 August, 2011.

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