Transmission Re-Programming Shift
TransGo Kits instantly re-program automatic
transmissions for high performance and durability.
re-calibrate the transmission to shift far more efficiently.
In terms of
performance and durability for an automatic transmission, the most important
improvement that can be made is to re-program the Control Assemblies. These assemblies
regulate the functions of the entire transmission; 95% of shift
performance comes from programming. Installing a Trans-Go Re-programming
Kit will instantly improve the whole personality of your GM, FORD CHRYSLER and
transmissions coming off the assembly lines in Detroit and Japan are truly
masterpieces of engineering. But engineers have been asked to program the
shifting for smoothness and comfort. Also, consumer attitude surveys show that
drivers believe a soft, smooth shift is easier on the transmission. Actually,
just the reverse is true.
To add comfort, Automotive designers have had to
subtract a considerable amount of efficiency and durability. They have achieved
comfort by extending the time duration of every shift. Not only does power slip
away during this extended shift, but all friction surfaces receive excessive
wear because they are asked to work overtime.
The stock automatic
takes longer to complete each shift. Points A to B,
Figure 1 show only mild acceleration. During this period only a partial power
condition exists because the friction elements are slipping.
This extended slipping time prevents the inertial energy from being
efficiently utilized. It is lost in the form of heat on the clutches and bands,
instead of being utilized for forward motion. Continually operating a stock
automatic at full throttle will cause early friction element failure.
To get high performance and improved durability in an automatic, we must
improve the way it executes every shift.
re-programming achieves durability and performance.
So if you are
willing to accept a faster shift, which will subtract some comfort, you can
restore full performance and durability. This is exactly what
a Trans-Go Re-Programming Kit does for you. It makes each shift faster and more
efficient. As a result, durability of the transmission is immediately
Re-Programming Goal:Make the shift faster without
The problem now
becomes clear that what we need is re-programming that will precisely control
the complicated chain of events that occur during every shift and do it in a
far briefer span of time.
This is exactly what Trans-Go has accomplished. Trans-Go kits cut slipping
time by more than 70% (even more in the Competition version) and at the same
time improve the quality of the shifting action itself. Figs 1 and 2 show the
The automatic with
a re-programming kit installed now shifts fast enough to take advantage of
inertial energy from rotating mass, including the inertial energy from the
transmission itself. Notice also the higher speed recorded (C) as the curve
leaves the chart. In driving this conversion at full throttle a sudden forward
lurch can be felt when it shifts, very similar to a power-shifted 4-speed.
You get better
control and back to low at any speed.
Trans-Go kits give
you more complete gear control of your transmission. Most kits offer Shift
Command, a special feature of our re-programming that allows you to shift back
to low at any speed! Trans-Go kits also retain fully automatic shifting in the
As the elapsed time
of shifting is decreased, the life of the transmission friction materials is
Installing a Trans-Go Re-Programming kit will at least double the life of
the friction materials in the transmission. In many heavy duty applications, a
Trans-Go kit has made the difference between a few months service without
repair and several years.
The shorter shift time allows the friction elements and gears far less time
to wear themselves out. The useful life of the
friction elements in a transmission is directly related to the amount of
slipping that is allowed to occur during shifts.
Slipping converts useful energy to heat on the surface of the clutches and
bands. This heat transforms the friction material to ash, which polishes its
mating element, causing further slipping, heat and deterioration of the
The gears receive less wear, too. A slow shift causes them to be partially
engaged for a longer period during the gear changing process, resulting in
unnecessary heat, wear and power loss.
ARE QUICK SHIFTS
ALL THAT MATTER?
Not by a
We have seen what can be gained in durability and performance with quicker
shifts. Overlap is also extremely important. Overlap is a condition caused by
applying a gear before the previous gear has been released.
as seen in the Fig. 3 converts engine horsepower into damaging heat and causes
clutch wear, band wear, shift delays, short oil life, and increased fuel usage.
includes an excessive amount of overlap.
This is done purely
for smoothness. Overlap causes delayed shifts. Overlap is the main cause of
shift delay, or hesitation when shifting manually.
Excessive Overlap is eliminated with Trans-Go Re-Programming. The difference
is felt immediately and there are substantial increases in performance,
durability and fuel economy.
APPLICATION LISTING FOR
REPROGRAMMING KITS, SHIFT KITS AND OTHER TRANSGO PRODUCTS
PERFORMANCE SHIFT KITS
FOR THE HOME MECHANIC AND DO-IT-YOURSELFER
Take a Closer Look at Transgo
EXCHANGE CO is located at 1803 NE MLKing Blvd.,
Portland, OR 97212. Ph. 503-284-0768, 800-776-1191 Fax 503-280-1655 E-mail firstname.lastname@example.org
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