Quote:
Originally Posted by Old300D
That's the only way you can get a good reading other than going to the dragstrip or putting your car on a dyno. Give it a good weight rating, and you will get good results everytime. Nothing magic about it, just an accelerometer and a crystal oscillator that calculates derivatives to give you speed and time to distance. With a weight you can get a good estimate of power to the ground. I've used one for years.
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Some are better than others, and the newer ones are pretty decent. I have the RaceTech AP-22 but I don't know where to buy it, since cb-racing.com apparently dropped it. (?) Avoid the old, original G-Tech Pro unit... too limited and too open to erroneous results if the in-car setup was less than perfect. I'd look for an AP-22 if you can find one... it's VERY configurable. And once dialed in, the data reported was within 1% accuracy at the dragstrip, compared to the official timing lights. Hard to beat that for a dash-top box!
