I just bought me a Gtech Pro SS-model. One of these:
http://www.gtechpro.com/ss.html
Has anyone tried these on a track, how accurate they are? I remember the older models were optimistic with terminal speeds.
I did 4 test runs, just to try out the meter. I used the original pitch correction value of 2.0. My car is DSG GTI, 17" wheels, 3-doors, launch control and fuel tank was almost empty.
1st run (short sprint just for test, traction was bad):
0-60mph 6.25s
60ft 2.432s
2nd run (short sprint, again bad traction):
0-60mph 6.27s
60ft 2.404s
3rd run (S-mode shifted to 2nd way too soon when trying to control throttle, so crappy run):
0-60mph 6.46s
60ft 2.424s
1/4-mile 14.854s @ 95.28mph
4th run (put it in manual-mode, first gear went now pretty much perfect):
0-60mph 5.88s
60ft 2.333s
1/4-mile 14.417s @ 96.55mph