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Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.
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Diamond Eye Performance
Thoroughbred Sku #: FLU9407DGDAMPERS
$461.16 - $516.80
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A new Fluidampr on your diesel truck will not only protect your engine from
destructive torsional vibrations but will also increase TORQUE & HORSEPOWER.
High performance diesel engines running chips and programmers are exceptionally
vulnerable to torsional vibrations. Save your crank & more by installing
a new Fluidampr today.
Fluidampr® Performance Diesel dampers offer the best protection against
torsional vibrations. Performance tuned or stock, your diesel engine will run
more efficiently with a viscous Fluidampr® installed.
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.
Our precision machined assembly is the most effective way to control torsional
Fluidampr® has tested on both stock and performance tuned diesel pick-ups.
Dyno tests have shown consistent increases in horsepower and torque in the three
What Is A Harmonic Balancer, aka Crankshaft Damper?
A harmonic balancer reduces destructive crankshaft torsional vibration, which
is the end-to-end twisting/rebound motion, that is naturally generated during
each power stroke. A harmonic balancer contributes to greater valve train and
timing efficiency, plus reduces wear of critical engine components such as main
bearings, oil pump and the crankshaft itself.
A harmonic balancer often incorporates the main drive pulley and by appearance
is often overlooked as having no essential function to the life of the engine.
If the drive pulley is incorporated with the harmonic balancer, removing or
changing it to a lightweight design, or using a low quality product MAY BE THE
SINGLE BIGGEST COSTLY MISTAKE YOU CAN DO TO YOUR ENGINE.
Why Do I Need A Performance Harmonic Balancer, aka Crankshaft Damper
Performance parts that increase torque, such as intake, exhaust, cams, and ECM
changes typically cause an increase in torsional vibration magnitude, but keep
frequency the same. Evidence that your stock harmonic balancer is not performing
adequately will be cracked, bulging or missing rubber between the hub and outer
ring. This is caused by excessive heat retention, over stretching and age. A
common failure will be the outer ring separating from the hub causing damage
inside the engine bay. Most race sanctioning bodies require a SFI 18.1 spec
damper as a safety caution.
Performance parts related to the rotating assembly, such as rods, pistons,
crank, flywheel/flexplate usually changes both torsional vibration magnitude
and frequency. A stock harmonic balancer typically is only tuned for a 50hz
peak variance. Move beyond its parameters and it may leave your critical engine
components unprotected when torsional vibration is at its peak.
Due to the countless combinations of performance upgrades the simplest and more
effective solution is to install a Fluidampr performance damper. By design,
Fluidampr protects across a broad frequency and can become more effective as
magnitude increases. The earlier a Fluidamper performance damper is installed,
the more you’ll benefit from the protection, performance and durability
in the long run.
How Does A Fluidampr Damper Work?
Unlike a stock elastomer harmonic balancer, Fluidampr performance dampers protect
across a broad frequency range and can become more effective as magnitude increases
throughout your RPM range. Each Fluidampr performance damper is designed for
the engine application it is intended for.
Fluidampr performance dampers consist of a free rotating inertia ring inside
a laser sealed outer housing within tight tolerance of each other. Both the
inertia ring and the outer housing are computer balanced to exceed OEM specifications
during manufacturing. Between the two, an area referred to as the shear gap
is pressure injected with viscous silicone. This specialized silicone maintains
stability across an extreme temperature range and provides superior heat dissipation.
As soon as your engine fires torsional vibration is present. To damp its destructive
effects, the outer housing turns at engine RPM, while the inner inertia ring
immediately self-centers and is free to be 'shocked’ by each torsional
vibration event. As the inner inertia ring moves in-and-out of RPM with the
outer housing, the shearing force through the silicone transforms the vibration
to heat, which rapidly dissipates through the housing. Since the mass of the
inertia ring is engulfed in a thin film of silicone and not directly connected
to the crank, it can be calculated that only 2/3 of the total Fluidampr weight
is rotating at RPM. For example, a 7.9lb Fluidampr for a Chevy LS1 only feels
5.3lbs at rpm.
The Fluidampr design originated from top race engine builders requesting Vibratech
TVD (formally Houdialle and parent company to Fluidampr) to bring its viscous
damper technology engineered for long-life, high power diesel applications to
professional motorsports in the early-1980s to replace failing elastomer designs.
Viscous torsional dampers are used today as original equipment on select luxury
sportscars, light-duty diesel trucks and even military spec engines. Meanwhile,
nearly all high power engines that move our economy depend on a viscous damper
for superior protection, performance and durability.
Fluidampr controls torsional vibrations up to 80% better than a stock
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.
Each Fluidampr is manufactured to meet or exceed OEM specifications.