Originally Posted by +fireamx
I have no actual experience with a G-tech pro. But in my observations they tend to be slightly optimistic. With that I mean, when ever I hear somebody quote a 1/4 mile time for their car clocked by a G-tect device, it usually sounds a little faster than it should be.
Most people don't set them up right. Getting a realistic weight setting is imperative, as is the RPM matching.
Mine was -.01 vs. the clocks at Milan dragway.