Testing Techniques and Protocols
BACKGROUND AND BASIC
TECHNIQUES
Nature
of the Additive
GTA Fuel Enhancer is a 100% hydrocarbon liquid containing a high molecular weight
polymer. This polymer when mixed with gasoline or diesel changes the physics of
air-fuel mixing. The elastic response of the polymer forces gasoline and diesel
fuel, when mixed with air, to form uniformly sized droplets (see Sauter Mean
Diameter Test). These uniform particles burn more efficiently and cleanly.
Special
Note on Mixing Devices
DO NOT USE HIGH-SPEED MECHANICAL MIXERS TO CREATE TEST SOLUTIONS.
Such devices will shear the long molecules of the active ingredient, and reduce
or even nullify the effects of the additive. Even though mechanical devices may
damage the polymer, field tests of more than sixty vehicles have not indicated
that automobile or truck fuel pumps reduce the effectiveness of the additive.
Stability
of a Solution
Once the additive
has dissolved in gasoline or diesel fuel, it will remain in solution
indefinitely. The polymer, which is the active ingredient, will remain dissolved
even below the freezing point of the fuel.
Creating
a Homogeneous Solution
The high molecular
weight polymer, which is very cohesive, will sink to the bottom of a container
of fuel if not properly mixed. One must, therefore, understand how to create a
homogenous solution to assure proper testing. To do so, observe the mixing of
the concentrate by pouring about ten drops of it into a quarter of gasoline (one
liter) in a transparent container. Watch it sink to the bottom. Then cap the
container, and gently rock it back and forth. The mass of polymer should break
up, and dissipate evenly throughout the gasoline. This demonstration will
indicate the degree of agitation needed to create a homogenous solution. Shaking
will not damage the polymer. To mix the concentrate with diesel, agitate the
fuel as you would for gasoline.
CONCENTRATION
LEVELS
Four-Stroke
Engine Testing
If the engine is
small (such as one used for a motorcycle) and the protocol is short, five
gallons (18.94 ltr) of fuel should suffice for two dynamometer tests. A
homogeneous additive solution for the first test can be conveniently prepared by
using a syringe (without a needle). A syringe works well for accurately
measuring volumes down to half a fluid ounce (14.80 ml). Use a syringe to mix a
container of fuel: 0.5 fl. oz. (14.80 ml) to five gallons. Please note that a
test should use exacting measurements, but the polymer is effective over a wide
range to ratios.
Run a dynamometer twice
using untreated fuel recommended by the engine manufacturer. YOU MUST TAKE
UNTREATED FUEL MEASUREMENTS BEFORE USING THE ADDITIVE. IT WILL TAKE A
CONSIDERABLE AMOUNT OF RUNNING WITH UNTREATED FUEL TO PURGE AN ENGINE OF ALL THE
BENEFICIAL EFFECTS OF THE PRODUCT. TEST THE EFFICIENCY AND EMISSIONS OF AN ENGINE
BEFORE USING THE ADDITIVE.
Run a dynamometer twice with
0.5 fl. oz. (14.80 ml) of additive to five gallons (18.94 ltr) of gasoline. The
two runs mitigate the effect of run-specific anomalies, and increase the chance
of reproducing test results.
Diesel
Direct-Injection Engine Testing
After the control
tests, use 0.33 fl. oz. (9.87 ml) of additive to five gallons (18.94 ltr) of
diesel.
Diesel
Indirect-Injection Engine Testing
About a dozen indirect injection diesel cabs in London used using the
additive for several weeks. The engines in the new cabs only performed better
after diluting the solution to about 0.25 fl. oz per five gallons (7.40ml/ 18.94
ltr). Follow the same procedures used for testing gasoline, but after the
control test, start at 0.25 fl. oz.(7.40 ml) of additive to five gallons (18.94
ltr) of diesel and work up to 0.33 fl. oz. (9.87ml).
Two-Stroke
Gasoline Engine Testing
Mix the recommended
amount of 2-stroke oil with the type of gas prescribed by the engine
manufacturer. For higher-end engines such as those used in motocross motorcycles
and personal watercraft, use at least 25% more 2-stroke oil when using GTA Fuel
Enhancer. It causes an engine to burn more of its fuel thus leaving less
lubrication near the exhaust port. Use the same proportions of additive-to-fuel
that you would for a 4-stroke engine (0.5 fl oz. per five gallons or 14.80
ml/18.94 ltr).
DYNAMOMETER PROTOCOL
The product demonstrates its
greatest effectiveness during throttle transition, the time between a change in
throttle position and the re-balancing of the air/fuel mixture and RPM levels. A
good part of this improvement can be attributed to the fact that the additive reduces
wall wetting (see hyperlinks), which permits more fuel to stay suspended in air
as in enters the cylinder. GTA encourages you to design a protocol to examine
this feature of GTA Fuel Enhancer.
GTA Fuel Enhancer will also improve
horsepower and efficiency at lower RPM levels especially under high load. The
additive will reduce emissions to varying degrees at all RPM levels, but will
contribute little to horsepower at the high RPM range.
With these features in mind, tailor your tests to examine the best performing areas of GTA Fuel Enhancer. At a minimum, time-resolved torque and throttle position data should be obtained. It would also be useful to compare associated exhaust emissions data.
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