GTech as a testing device

[Davis]

You can do better with a timing circuit and VSS data, but for simplistic
uses, the GTech is ok..  I found it NOT to be useful on my car because
my 700R4 is setup to shift hard and the 1->2 and 2->3 shifts would
always throw it off.  (IE, on one 12.9 at 106 run, the GTech reported
a 12.6 at 126!!  because the car really hooked on the 1-2 shift and
launched it.. 8-)

"D. Barry Stubbs" wrote:

> Any comments on the validity of the GTech as a testing device?  As I
> understand, the absolute numbers may be off, but relative performance
> can be measured with decent accuracy.
>
> In the long run, seems cheaper and quicker than track time and dyno
> runs, and a wee bit more accurate than a stopwatch.

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