The all new G-TECH/Pro Performance Meter is a cutting
edge tuning tool designed to make a professional test driver out of you.
It measures all performance characteristics of your car in a matter of
minutes with absolutely no installation or wiring (Can be hardwired if
desired). It will give you all the answers you always wanted before and
after your modifications.
How does it work?
Acceleration: At the heart of G-TECH/Pro is a precision
3-axis accelerometer, a sensor that measures acceleration also known as
G-Force. G-Force is what's keeping you in your seat and if it wasn't for
that seat you would be accelerating to the ground at 1 G (32 feet per
second per second). Acceleration is measured in Gs and is one of the key
things the G-TECH/Pro COMPETITION is measuring. You can see this when
you position the unit horizontally, it will show 0.00G's on the X acceleration
bar. If you position it vertically it will show 1.00G's.
Speed: The G-Tech measures your speed and distance travelled
by integrating forward (the forward direction is chosen automatically)
acceleration over time. Basically, if you know how fast you are accelerating
for a certain time period you'll know how much your speed changed after
that time period. So if you start off from zero speed then you'll know
what your speed is after every time period. These time periods are very
small (a few thousandths of a second) and that's how G-Tech maintains
its accuracy. However, if you don't start from zero speed your measurement
won't be correct because you won't have a good reference point. Consequently,
it's very important to start all of your measurements from an absolute
standstill.
Distance: Distance is measured in the same fashion,
if you know how fast you are going for a certain time period you will
know what is the distance travelled during that time period.
Horsepower: The G-Tech measures horsepower though the
formula: speed times acceleration times the weight of the vehicle. The
more accurate the vehicle weight you enter, the better your measurement.
The G-Tech measures delivered horsepower, sometimes also called Rear Wheel
Horsepower. This horsepower includes the loss of power through the drivetrain
which is usually 10-15%. Rear Wheel Horsepower is what most people are
interested in because that is what they experience when driving. The use
of Flywheel Horsepower measurement is often used in advertising, but not
very realistic when it comes to accelerating your vehicle.
The horsepower that G-Tech measures also includes vehicle aerodynamic
drag. This means that if you tape over your headlights and grill, remove
rear view mirrors and windshield wipers to reduce your drag, you will
measure a Horsepower increase even though you didn't make any changes
to the engine. After adding an aftermarket spoiler you will likely find
a decrease in measured horsepower, since you increased the drag losses
on your vehicle.
RPM: Engine RPMs are sensed directly from the cigarette
lighter voltage. No installation required at all with this true plug and
play feature. The unique RPM feature is used for anything from realtime
torque measurements to shiftlights.
What can it do?
The new G-TECH/Pro Performance Meter COMPETITION is a very sophisticated,
cutting edge automotive tuning instrument. Weather you want simple RPM
recording or complete Data-Acquisition. As an automotive enthusiast you
will find recording acceleration runs and analysing shift points, delivered
horsepower and reaction times extremely valuable. Just imagine, having
all that power of knowledge right there under your fingertips any time
you want it, that's the new G-TECH/Pro COMPETITION. So, no more confusion
after making modifications now simply get the results "before and after".
Measurements:
Reaction-Time
0-60ft time
0-330ft time
0-60mph time
1/8mile E.T and speed
1000ft time
1/4 mile E.T. and speed
Horsepower
Torque
RPMs
Braking distance
Handling G's
Accelerating and Braking Gs
RPM vs Time Graph
HP & Torque vs RPM Graph
Speed vs Time Graph
Speed vs Distance
Gs vs Time Graph
How accurate is it?
There are several significant improvements over the original G-TECH/Pro
Performance Meter that have been implemented in the new COMPETITION model.
First of all, there are 3 accelerometers and they are fully temperature
compensated. This in itself is a huge improvement in accuracy. Secondly
there is a very sophisticated new calibration algorithm that allows much
higher precision. Also the system now has 32 times higher resolution which
speaks for itself. New Noise-Correction algorithms have improved overall
accuracy as well. With all of these valuable features the accuracy
is now within 5/100 second. With the consistency at 5/1000 of a second!
Absolute Horsepower and Torque measurement are within 3% and consistency
within .5%!