Fluidampr Fluidampr Harmonic Balancer AUDI S4


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Part #: 651211
Notes: Fluidampr Harmonic Balancer
MSRP: $490.85
Your Price: $374.50
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Specs

Bore Dia. Min/Max 1.225
Degree Markings Yes
Engine Balance Internal
Finish Black Zinc Chromate
Keyway Single
Length 1.73
Material Steel
Mounting Hardware Incl. No
O.D. 6-5/8" (6.625)
Safety Rating SFI 18.1
WT. in lbs.()=Rotating weight 7.1 (4.1 Rwt)

All Fitments

AUDI
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1990 - 1994 100 ALL V6 2.8 ALL ALL ALL 12v
1993 - 1995 90 ALL ALL ALL ALL ALL ALL 12v
1993 - 1995 90 QUATTRO ALL ALL ALL ALL ALL ALL 12v
1995 - 1997 A4 ALL V6 2.8 ALL ALL ALL 12v
1997 - 2001 A4 ALL V6 2.8 ALL ALL ALL 30v
2001 - 2005 A4 ALL V6 2.8 ALL ALL ALL 30v
1995 - 1996 A6 ALL ALL ALL ALL ALL ALL 12v
1996 - 1997 A6 ALL ALL ALL ALL ALL ALL 30v
1997 - 2001 A6 ALL ALL ALL ALL ALL ALL 30v
2001 - 2005 A6 ALL ALL 3.0 ALL ALL ALL 30v
1995 - 2005 A6 QUATTRO ALL V6 2.7 T ALL ALL
1999 - 2005 ALLROAD QUATTRO ALL V6 2.7 T ALL ALL
1993 - 1999 CABRIOLET ALL ALL ALL ALL ALL ALL 12v
1998 - 2002 S4 ALL ALL ALL ALL ALL ALL
VOLKSWAGEN
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1997 - 2005 PASSAT ALL V6 2.8 ALL ALL ALL 30v

Product Description

Fluidampr Engine Dampers are designed to control destructive vibrations which are transfered thru the crankshaft.

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.

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.

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