Part Number: 610901

Description: Fluidampr Harmonic Balancer

Keyway: Single

Mounting Hardware Incl.: No

Safety Rating: SFI 18.1

Finish: Black Zinc

Material: Steel

Degree Marking Range: 7 marks, 5 degrees apart

Pulley Finish: Black Zinc

Degree Markings: Yes

WT. in lbs.()=Rotating weight: 11 (7.4 Rwt)

Bore Dia. Min/Max: 1.1795 / 1.1805

Length: 3.131

Engine Balance: Internal

O.D.: 6-1/8" (6.125)

Degree Markings: Engraved

Outside Diameter: 6-1/8"

Pulley Finish: Black Hard Coat Anodized

Title: Fluidampr - 610901 - Harmonic Balancer - Fluidampr - Nissan Skyline R32 GTR - 1989-1994 RB26DET phase1

Weight / Rotating Weight: 11.0 lbs / 7.3 lbs

Depth: 3.131

Drive Belt Type: Serpentine

Inside Diameter: 1.18

Keyway Type: Single; (5mm)

Mounting Hole Quantity: 1

Pulley Groove Quantity: 4 rear, 4 middle, 4 front

Bolt and Washer Included: No

Fitment: 89-94 Nissan Skyline GTR R32

Details:

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.

Features and Benefits

• Broad RPM range protection.

• Reduce risk of crankshaft failure.

• Reduce wear on critical engine parts.

• Unleash lost torque & horsepower.

• No maintenance required.

• Superior durability.

• SFI 18.1 spec. Race proven for over 35 years.

• Made in USA.