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Hi-Performance Coated
Rod Bearings for 3.2 & 3.6
Porsche 911 Engines
 Race Series Performance
Engine Bearings
The unique combination of design,
metallurgy and engineering come
together to deliver what drivers expect
from high performance Trimetal engine
bearings.
- High strength overlay plate with
reduced thickness for improved fatigue
properties.
- Hardened steel backs on all rod
bearings to improve the support of the
bearing lining and assist with bearing
retention in housing.
- Increased crush for improved bearing
retention.
- Elimination of flash plating on the back
of the bearing to improve heat transfer
through the bearing sand to maximize the grip between the bearings and its
housing.
- Increased eccentricity to compensate
for bore distortion at high rpm and to
assist in the formation of
hydrodynamic oil films.
Calico Coated Bearings
- Reduce Engine Failure
- Extends Bearing Life
- Reduces Oil Temperature
- Increases Horsepower and Efficiency
- Saves Time and Money
Set of bearings for six rods: $549.96
112333 Standard Size: $91.66/Rod
112332 .0005 in. Thicker than Standard: $91.66/Rod
(Bearing shells can be mixed)
See Installation Instructions (PDF)
for Parts 112332 & 112333.
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 Chain Tensioner
Guards for Pressure-
Fed Tensioners
Prevent total tensioner collapse and
expensive engine repair. Kit includes
Tensioner Guards for both sides.
143230: $42.80
 Installation Tools for
Chain Tensioner Guards
Includes all specialty tools needed to
install Tension Guards. 143240: $77.00
See Installation Instructions (PDF)
for Part 143230.
 930 Turbo Boost
Surge Filter 1976-1989
Violent engine surges during quick gear
changes are annoying and dangerous. If
your turbo has been shimmed for more
boost, sudden pressure surges within
the manifold may cause intermittent fuel
cutoff. In turn, this leads to violent
engine vibration and an alarming drop in
power. In the past, some people "solved"
the problem by grounding the cutoff
control wire. But this defeats the safety
protection of the overboost system and
can lead to destruction. The solution is
not to bypass but control the cutoff
switch. We’ve measured the amplitude
and timing of these surges and built a
filter that controls pressure spikes,
resulting in smooth power and more
driving fun.
176100: $142.50
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