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The Superlite caliper series has set the standard
for many years in short track, late model, modified and open wheel
competition. It has also enjoyed prominence in a variety of road-race,
off-road, rally and sport driving applications. The Forged Billet
Superlite (FSL) is the newest innovation to this series from Wilwood.
New and adaptive technologies have been applied providing substantial
improvements in strength, fluid volume displacement, and overall
performance.
The most noteworthy feature of this new caliper
design is the forging. Each body is stress-flow forged from premium
grade aluminum alloy billets. Stress-flow forging re-aligns the metal's
internal grain structure to flow within the contour of the caliper body.
This process eliminates the stresses and interruptions to the internal
grain structure that occur when machining a straight block billet.
Simply stated, there is no better way to build a stronger aluminum
caliper body.
The FSL body design is a highly efficient product of
computer generated solid modeling and stress analysis technology. Each
caliper features closed end bridges with a radial transition to the
piston body housings. The elimination of machined steps and sharp
shoulders in this critical area provides a measurable increase in
overall body strength and resistance to deflection under load. Center
bridge bolts replace cotter pins to provide additional support and allow
quick access with positive brake pad retention. Clamping force,
structural deflection, and volume displacement tests have proven the
superior strength and efficiency of the FSL. On-track testing has proven
driver satisfaction. The bottom line is better stopping power with less
pedal travel.
The superior strength of this innovative new caliper
is combined with proven performance features from other Wilwood designs.
Each caliper is equipped with Wilwood's replaceable SRS stainless steel
bridge plates. SRS plates eliminate the bridge wear caused by pad
gouging and extend the service life of the caliper body. The
spring-loading action of the SRS plates also eliminates pad rattle and
dampens the vibration harmonics that contribute to squeal under braking.
Other standard Wilwood features include high-temperature, square faced
o-ring seals for positive sealing, controlled piston retraction, and
long service life in high heat conditions. Stainless steel pistons are
used to resist corrosion and retard heat transfer from the pads. Fluid
tubes are vibration dampened to resist stress fractures and reduce
damage caused by track debris. Two-piece bleed screw assemblies provide
long, reliable service life and are easily replace if necessary.
Forged Billet Superlite calipers are a direct
replacement for all Wilwood Superlite and similar competitive brand
calipers with 3.50" centered mounting tabs. Calipers are available
in the popular 1.75" and 1.38" piston sizes for .81",
1.10" and 1.25" rotor widths. FSL calipers use the same 7420
type bridge bolt brake pad used in all Superlite 6 piston calipers. The
full range of PolyMatrix pad compounds is available to match brake
response and heat range to any application.
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