HuntMarsh

how do you guys measure the speed of your cars?
i know there are a bunch of little electronic gadgets out there that do this, but what particular products you use and do you suggest them?

got new tires and trying to see how much i'm thrown off, so don't give me a retarded answer and say "speedometer"[:'(]

haha, thanks.

samseed101

I'm one of the lucky ones. I just get on the highway and have a cop follow me while on the phone with him. I test my speedo at 45, 55, 65 and see how close it is throughout that range.

89 fox

dang...beat me to it!!! seriously....either get someone to ride onside of you or get your hands on a GPS

88BlueGT

Your best bet is to have someone ride next to you... and try to pick a newer car, not another fox body because most likely he is prob off too! lol

86 5.0L

if you just got new tires, input those dimensions here;

http://tchracing.com/tech/gearcalc.php

94gtcoupe

GPS FTW, but a car thats only a few years old is good too, don't use another sports car ot a truck, because most of the time the tires are different sizes than what came on it