ReaperHWK

I just got my 100% stock 2006 GTO this summer; wanted to baseline it's performance before I change anything. Track is hard to get to and closing any weekend.

Back in the day I used to have a GTECH that attached to the dash for 0-60 and 1/4 mile times. It used an accelerator for this. I know phones have this now, are there any apps that I can just load on my phone that can do these measurements?

Or do I still have to buy a $300 stand alone unit(which I won't, I'll wait for spring and do the track)?

JoeNova

Phone GPS units only update about once per second, so the apps shouldn't be used to predict track times.

CattleAc

iTrader: (7)

They're not $300, but these work well. (I know it's not a phone app)

Dragy box