I know, nothing beats a real dragstrip or dyno, but, the G-tech Pro is one cool toy. It gives a readout of horsepower and torque, which they state is net, as in minus the power loss of rolling and air resistance. So the numbers shown are lower than any real dyno.

Tried it out on my '90 Mustang GT, which has been massaged a bit and dynoed on a Dynojet recently. On the Dynojet it made 275 whp, and 307 ft/lbs of torque. On the G-tech the best run shows 241.6 whp and 262.4 ft/lbs. Down about 13% on horsepower from the dyno, and the curves when plotted on the PC software that comes with the G-tech run very closely to the ones from the Dynojet.

I tried it on the Evo this morning... how does 271.5 whp and 243.7 ft/lbs sound? Assuming a similiar differences, that'd make about 306 whp on a Dynojet... even benchracing that still gives me a nice warm feeling all over.

 

Pretty cool....

 

nice man!

 

Very cool! What do you guys think about this one?


http://www.beltronics.com/fx.html

 

I looked at the Bell and also the new Escort accelerometers, but both charge extra for the data download cords for PC use. For the same price the G-Tech Pro comes with everything. Plus I had an old G-tech, and it worked halfway decent, so it made sense to stick with what I know when ordering a $250 toy.

 

Have you tested the 1/4 mile times or anything else on it?

 

Never been to the track... at least not the straight line version. Lots of autocross as well as one open track event so far. So nope, no solid number to number comparo other than the dyno sample. I had compared the old version to my track times on my former race car ('94 Mustang GT, 408cid, ATI Procharger, etc) and it was within a few tenths of ET, but read high on MPH (about 5-7% over dragstrip speed)

It does explain how I was able to basically drive by several M3s at the open track event, and hang with the N/A Porsches.

 

FYI....the G-Tech 'trap speed' is actually the instantaneous speed at the end of the quarter....whereas at a real track, the trap speed is actually the average of the last 100' or 60' or something, I forget. Anyway, some of you i'm sure know this....just thought i'd add that.

 

I have a g-tech pro comp also; it's a great ttool I was wondering what gear you used to do your hp/torque curves. I did some in 2nd but have heard that third gives better readings.

As for drag mph, don't they average the entry and exit points for your last 60' (or something like that)? I don't know the details, but read something about it on another thread.

 

i've got an older gtech.... We took a few baselines on my friends rsx with it, and they were bang on with what they should be... These things are great!