StopTech Equals Quality
StopTech is a serious company that puts
great emphasis on quality materials and suppliers. The high standard of
our parts and manufacturing processes are part of what makes StopTech
brakes the best value in the market today.
StopTech's ST-40 and ST-60 calipers are
fully forged for optimal strength and light weight. All caliper finish
machining (such as piston bores sized correctly for the application) and
assembly/testing is done in our Southern California facility. StopTech
tests every single finished caliper to 2800 psi using brake fluid on a
special test bench designed by StopTech engineers.
AeroRotors are made using StopTech's
patented vane design and our proprietary cast iron formula, which was
specified with durability in mind. StopTech has had several sets of
rotors run entire 24 hour races on winning cars. StopTech did extensive
testing before settling on our final top-secret formula. To test rotor
durability, we rented the California Speedway and ran a heavily weighted
down car with StopTech rotors on one side and a competitor's rotors on
the other. In this test, StopTech rotors were approximately twice as
durable as the competitive rotor.
Hats and Brackets
StopTech's hats and brackets are made
with a special type of billet aluminum that was designed for the
AeroSpace industry in the United States. The German TÜV were so
impressed with the durability of these parts during testing that they
replicated the bracket and repeated the test with a steel imitation of
our part. The steel version failed early.
Hats and brackets are machined to ISO
standards at StopTech's manufacturing facility in Torrance, California,
using the latest CNC machines that feature active tooling.
Stainless Steel Brake Lines
StopTech makes our own stainless steel
brake lines in Southern California. StopTech is a DOT (U.S. Department
of Transportation) registered supplier of Stainless Steel Brake Lines.
Line material and fittings are all made from the highest quality parts
available. Lines feature a clear abrasion-resistant cover for maximum
protection against chaffing. Necessary quality control procedures are in
place to ensure lines are the correct length, etc. Every fully assembled
StopTech Stainless Steel Brake Line is tested to a pressure of 4,500
Quality Assurance of Parts
All parts are bench tested prior to
shipment. Each caliper is 100% pressure tested to 2,500 PSI. Every brake
line is 100% pressure tested to 4,500 PSI. Every assembled two-piece
rotor is tested for runout. Hats and brackets are made by StopTech to
exacting standards on our own CNC machines. Since StopTech has complete
control over our entire design and manufacturing process, we are able to
deliver completely integrated kits with a very high standard of quality.
StopTech was the first aftermarket brake
upgrade company to offer Balanced Brake Upgrades and is the only company
offering optimized kits for over 277 applications. To our knowledge, no
other brake upgrade manufacturer takes these design and test steps.
Highly Structured Test Process of New Applications Ensures Optimum
After measuring a car for physical
dimensions and calculating the correct piston sizes, StopTech builds a
prototype kit and takes it out to the track. StopTech first tests the
stock brakes, then tests the exact same car outfitted with a newly
designed StopTech Big Brake Kit. StopTech performs the following series
of stops, measuring deceleration, stopping distance and rotor
temperature for each stop:
1. Series of stops with increasing speed:
- 10 Stops from 60mph
- 6 Stops from 80mph
- 4 Stops from 100mph
2. 1 high speed stop with ABS disabled to
see if the front or rear brakes lock up prematurely.
3. Modified J-Turn test to determine how
the brakes interact with ABS and traction control. This sophisticated
test is used by engineers who design ABS systems.
J-Turn test set-up:
A skid pad is laid out with cones and
very carefully measured calibration points are market with dots of
paint. A car is driven through the course to determine the maximum speed
possible with constant radius turns. At maximum speed, the driver locks
the brakes and comes to a stop. Using a computer, the delta between
departure angle and intended direction is measured, taking into account
car wheelbase and track. If the delta is outside a narrow range, the
kit’s piston sizes must be adjusted.
For more information on our track
testing, please see the below article written by a reseller who attended
one of our test days:
StopTech 350Z Brake Testing
State of the art Equipment Used for Track Testing
The Stalker Radar System
accurately measures stopping
distances and deceleration.
On-board data acquisition systems
accurately measure brake system
parameters during on-track testing.
High quality contact pyrometers
are used to directly measure