Now I know everyone has looked at the gtech and said to hell with that, its not acurate and isnt really what I need anyways. The new gtech is much much better, but still $300. I found a site based in England that has some data logger/road dyno units for pretty cheap. The only thing that these dont have that a dyno does is a wideband o2 sensor, but they have inputs for on in the better models, so if you had on of those, you could have a basically complete dyno on your car. The base model one is like a basic dyno, it has you make a run, then logs the data for you. You can then dowload it to your computer in graph form. This program looks to be much more accurate than the gtech because there are way more user definable parameters. Its also cheap as hell. The base one is 85 pounds (137$ or so) and the nice model is 120lbs or 194$. There is also a data logger for track use that records more and has additional features available. Heres a link to their site: http://www.microsmith.co.uk/perf.htm I will probably be ordering one of these units soon, Ill post my results.
Later,
Chris

What do you guys think? Will it be no better than a gtech or does it look like this one would work pretty well?

 

It certainly has more features than the regular G-Tech Pro. But I think the G-Tech Pro Competition beats this one, in terms of features.

Plus, this one seems to need some wiring done, unlike the G-Tech.

Just be sure it works with rotaries. This doesn't sound like our cars:

The only variable needed to get the G-Tech working right, is exact vehicle weight. This one seems to require a lot of input...maybe that will make it more accurate.