How accurate is the Gtech?
The Gtech Pro Competition is extremely accurate and repeatable. We routinely take 12 new Gtechs at random and subject them to testing in a controlled environment that eliminates variables such as pitch, mounting system problems, etc. Typically, all 12 Gtechs measure the same 1/4 mile time for a 1-g run, plus or minus five thousandths of a second. For horsepower measurements, we have observed accuracy and repeatability in the range of 1-3 percent. The accuracy and repeatability of your results can be influenced by many factors, such as vehicle pitch, road surface, environment, mounting system, driving style, etc.
