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Torsion bars provide the vital suspension
link between the surface of a race track and a car's chassis.
Torsion bars have as much to do with the car's response as do
its tires, so their quality and consistency are essential to
a good performing car. The quality of material, workmanship,
heat treatment and finish all have an effect on the performance
of the torsion bar. Schroeder uses only aircraft quality high
alloy steel to achieve the finest bar possible, and machines
their torsion bars with state of the art CNC equipment. Only
Schroeder torsion bars are machined in one continuous pass from
end to end in order to prevent irregularities. Then they are
polished, heat treated to exact specifications, then polished
again to assure no surface imperfections exist which could cause
a stress point or crack to originate. The bars are then coated
with a protective film and shipped in plastic screw-lock tubes
for protection and easy identification.
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There
are significant differences between gundrilled, and solid torsion
bars other than their weight. The hole in the center of gundrilled
torsion bars creates two surfaces instead of one, allowing the
bar to react differently than a solid bar to deflection. Gundrilled
torsion bars have a faster spring rate than a solid torsion bar,
which means they rebound, or spring back, quicker. The center
diameter of a hollow torsion bar is adjusted to achieve the same
spring rate as a solid bar. Therefore, no chassis adjustments
need to be made when switching from solid to hollow bars. Schroeder
gundrilled, and solid torsion bars all start the same way, as
aircraft quality high alloy steel stock, and the gundrilled bars
are drilled out using the same high performance equipment used
to machine the barrels of fine rifles. Track conditions and chassis
characteristics determine which type of bar is the best choice
for your particular application. |
A frequently
asked question from our torsion bar customers is, "How long
should a torsion bar last?". The answer lies in how close
to the material's yield point the bar is used. The closer the
stress exerted on the bar is to the yield point of the material,
the shorter the life of the bar. Consistently take a bar past
its yield point and the life starts to go out of the bar. A high
quality bar will not lose it's spring rate, it simply will not
be as responsive as it is designed to be. An analogy would be
to compare torsion bars to valve springs that test OK but the
engine will not perform at its peak. All Schroeder torsion bars
are manufactured of the finest materials and to the closest tolerances
to insure unsurpassed durability and reliability under racing
conditions. |
| Schroeder
Racing Products offers custom torsion bars machined to exact client
specifications in order to function in any specific application.
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Quick
Star bars have a larger hole which causes the bar to react even
quicker than our standard gundrilled bar. They are also gundrilled
to ensure a consistent performance. Quick Star bars are for use
in specialized applications such as a smooth, dry-slick track. |
Schroeder
Racing Products has provided the finest Steering and Suspension
components for over 40 years to champions of many major racing
events, including: The Belleville Midget Nationals, Turkey Night,
Eldora 4 Crown, USAC Midget National Championships, Silver Crown
Championships,The New Zealand National Midget Championship, The
Mini-Sprint Nationals, The Daytona 500 and The Brickyard 400. |
