Fluidampr 840801 Engine Harmonic Balancer. TITLE: Fluidampr - 840801 - Harmonic Balancer - Fluidampr - Toyota - 1990-2005 - 1JZ / 2JZ I6 - Each. Finish: Black Zinc. Keyway: Single. Length: 2.096. Material: Steel. Bore Diameter: 1.3783. Safety Rating: SFI 18.1. Engine Balance: Internal. Degree Markings: Engraved. Outside Diameter: 8-1/2. Degree Marking Range: 31 Timing marks 2 degrees apart and one @180 degrees. Weight / Rotating Weight: 9.8 lbs / 6.5 lbs.
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 absorbersâ€, 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.
Additional Features Fits Select: 2001-2005 LEXUS IS 300 6 Cyl 3 L
1993-2005 LEXUS GS 300 6 Cyl 3 L
1994,1998 TOYOTA SUPRA SPORT ROOF 6 Cyl 3 L
1992-2000 LEXUS SC 300 6 Cyl 3 L
1993,1995 TOYOTA SUPRA 6 Cyl 3 L
1997 TOYOTA SUPRA SPORT ROOF LIMITED 6 Cyl 3 L
1996 TOYOTA SUPRA BASE/SPORT ROOF BASE 6 Cyl 3 L
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| Manufacturer part number |
570801 |
| Vehicle model |
Pontiac Grand Prix 1976|Lexus IS300 2001-2005|Lexus SC300 1992-2000|Toyota Supra 1993-1998 |
| Vehicle year |
1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
| Vehicle make |
Lexus|Toyota |
| Vehicle mount location |
Engine |
| Vehicle fitment type |
Universal |
| Automotive parts division |
Performance |
| Brand |
Fluidampr |
| Automotive specialty part type |
Engine Harmonic Balancer |
| Features |
Engraved |
| Material |
Steel |
| Finish |
Black |
| Dimensions |
10.5 x 10.5 x 4.5 in |
| Weight |
8.9 lb |
| Vehicle type |
Car |
| Compatible cars |
Lexus GS300 1993-2005|Lexus IS300 2001-2005|Lexus SC300 1992-2000|Toyota Supra 1993-1998 |
| Pack quantity |
1 |