Fluidampr Harmonic Fluid Dampers Made in U.S.A.
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 Products and Fluidampr FAQs:
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.
|
If your damper looks
like this... |
You need one of
these... |
 It's
important for the damper on your diesel engine
to function properly . If your damper looks like
this, you need to replace it before major damage
occurs. Stock elastomeric dampers have a short
life span and do not control torsional
vibrations at all RPM's. The rubber rings in
stock dampers deteriorate. Fluidampr offers a
superior performance that lasts. |
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. |
Crankshaft Deflection
Each time the air/fuel mixture inside
a cylinder is ignited, the combustion that results
creates a torque spike - an extremely rapid rise in
cylinder pressure. This pressure, applied to the top of
the piston, becomes the force that is applied to the
crankshaft through the connecting rod. Each torque spike
is like a hammer blow. In fact, it hits with sufficient
intensity that it not only causes the crankshaft to
turn, it actually deflects or twists it.
This
twisting action and the resulting rebound (as the crank
arm snaps back in the opposite direction) is known as
torsional harmonic vibration. If not adequately
controlled, torsional vibration causes rapid main
bearing and main journal wear and possible crankshaft
breakage.
Fortunately, harmonic vibration can be
controlled by a vibration damper - which is also called
a harmonic damper or erroneously a "harmonic balancer".
The main purpose of a "harmonic damper" is to control
harmonic vibration, not necessarily to balance the
engine's rotating assembly.
Although harmonics occur over a broad
range of engine speeds, rubber and elastomer-type
dampers are frequency sensitive - they are tuned only to
control harmonic vibrations that occur within a narrow
band of rpm. However, there is more than one area within
the operating range of a performance engine that
critical harmonic vibrations occur, therefore, elastomer
dampers may not be effective.
The resulting lack of vibration
control could prove to be very destructive. Rubber is
also a poor dissipator of heat, and dampers by their
nature create heat as they work to reduce vibration. As
the rubber gets hotter, it does not work as well.
Second, rubber breaks down when exposed to the elements.
Over time, the rubber strip can crack and begin to
deteriorate due to age and exposure. This can lead to
inertia ring slippage, damper failure, and uncontrolled
torsional vibration, which leads to costly parts
breakage.
Fluidampr
Facts
1.) Most stock dampers are actually
tuned absorbers and do not work when the the engine is
modified from the original set-up. 2.) The damper is not
a balancer. It's job is to control torsional vibrations.
3.) The silicone inside a Fluidampr will not expire and
is not effected by temperature change. 4.) An externally
balanced assembly should be balanced with only the
counterweight or stock damper installed.
Viscous Dampers
The best dampers on the market are
manufactured in the U.S.A. by Horschel Motorsports, an
ISO 9001:2000 certified facility. HM is continuing the
tradition that started in 1946, when the first viscous
damper was invented. Over 4 million viscous dampers have
been made for heavy duty diesel, drag car, stock car,
street machine, race boat and other high performance
engines. Looking into the future, Horschel Motorsports
promises to manufacture the best dampers available as
well as engineering new solutions for developing engine
technologies.
The Fluid in a Fluidampr
It has been rumored that the fluid in
a Fluidampr turns to gel over time. Here’s a news flash,
its gel when we pump it into the damper. That is how the
technology works. The silicone gel inside the damper
keeps the flywheel in place and functioning. So to put
all of the competitions claims to rest, it is a gel,
always and forever. Maybe we should have named them
Geldamprs.
Let’s Talk About Rubber
Other dampers on the market use rubber
or “elastomer” as the insulator for the internal
flywheel. Rubber deteriorates and wears down from
repeated movements. In layman’s terms, the more you work
it, the weaker it will get. The inertia ring that
balances an elastomeric damper becomes unstable when the
o-rings start to wear. Think of it this way, what does a
car wheel feel like when it looses one of its balancing
weights? How would a fan missing a blade function? A
damper with worn o-rings can unbalance a crankshaft and
destroy it.
The reason car manufactures install
elastomer dampers at the factory is not for performance
but for cost. The “rubber” dampers are cheaper and
easier to make.
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