does anyone have or has anyone used a G-Tech Pro Competition computer? This little gadjet runs for $249.95 and no one on the web sells if for less. The little thing looks really cool and does a lot but before I drop those kinds of dinero's, I want to make sure it's worth it.

Here's the link to the manufacturer's web site.
http://www.gtechpro.com

Here's a retailer's page.
http://www.fastwrx.com/gtecprocom.html

Thanks!

Tim.

2003.5 G35 Sedan
Stillen Intake!
Hyper Grounding Kit!
Lowered! (soon)
Also MB ML350!

 

I have seen friends use them but with no"real data" to back up the claims it seems empty. They get close to the mags and sometimes its right on but...."no real data"

03.5 Sedan/B. Silver/Prem/Winter/Aero/Tint/Rims
69 Chevelle Hard Top BB/4.11's/Posi

 

They will have to base line at the track and then go from there to validate the accuracy. Anyone.....?[img]/w3timages/icons/smile.gif[/img]

Thougth about it myself but have not made the commitment...

 

i would think that if you used it to compare readings against itself, it would be useful. if it is a quality gadget, results should be repeatable with little variance, environmental factors notwithstanding.

seems it would be a quick and dirty way for someone to measure performance results from mods. if the mods and g-tech both work as claimed, you should see an improvement between runs.

if you and a couple of buddys mod cars, everybody should pitch in and buy one. then you can all take readings.

g35doman
'03.5 5AS, BS/G, Leather, Sport, 32%, Klasse

 

You've got a point, there should be a change.

03.5 Sedan/B. Silver/Prem/Winter/Aero/Tint/Rims
69 Chevelle Hard Top BB/4.11's/Posi

 

I have their previous device....The G-Tech pro....It is fairly accurate...At least on the old 130 horse Nissan. Nailed it everytime.

On automatic cars it is more accurate than the harder shifting manuals.....

The whole device is based on accelerometers. You input the weight of the car--This is the most critical aspect of makign the device the most accurate.

Weigh the car with the same amount of stuff in it--including gas and you will get the most consistent measurements.

I used it a few times at the track and it was pretty close to the track times that spit out of the ticket. Figure on +/- 1 tenth in the quarter.....





<p>
hehehehehehehehehehe

 

I own one, but haven't had many opportunities to use it. It's ballpark accurate, but definitely not truly accurate. I got times a couple tenths faster than what I got at the track, and a horsepower rating way the hell off (it began with a "1"). Word of mouth is that it's accurate against itself. I.e. it might be 2 tenths faster, but those 2 tenths are fairly consistent. You do, however, need to do things like mount it in the same place and angle it in the same direction every time if you want consistent results, which is a pain because the suction cup is GIGANTIC and you'll want to tilt the thing around in order to read it afterward. My big complaint right now is that they STILL haven't released the software for downloading results, which was promised 6 months ago and a big selling point to me.

If I could do it again, I'd buy an AP22 instead. See how it compares here:

AP22

-Jack
Obsidian/graphite '03 Coupe premium nav

 

Thanks for the link. I am very interested now. I thought that on G techs were out there-I should go shopping,huh.

03.5 Sedan/B. Silver/Prem/Winter/Aero/Tint/Rims
69 Chevelle Hard Top BB/4.11's/Posi

 

I should add that that comparison is to the older GTech Pro, not the GTech Pro Competition. The Competition model does have some of those other things, like the g-force and reaction time measurements.

-Jack
Obsidian/graphite '03 Coupe premium nav

 

Good info here so far guys. Keep it up and give me more feedback! I looked at that AP22 model and it appears as if it would provide the data I'm looking for, just not in a sleek looking techo-type package with a cool LCD and such? I'm not sure that downloadinbg data is what I want. Lookiing for something that can measure HP, TQ, speed at distances, simulate a drag start, etc. Something like one of you said, benchmarking against my own mods. If I got one, my thought is to make a mount for it above the radio a/c stack so I can put it in the same spot every time. To hell with that monsterous suction cup. Or, does that whacky thing play a role in the sensitivity of the unit?

More advise please! More, more, more!

Thanks, Tim!

2003.5 G35 Sedan
Stillen Intake!
Hyper Grounding Kit!
Lowered! (soon)
Also MB ML350!

 

Wherever you mount it, the unit itself needs to be removable, because you need to periodically tilt it around to calibrate its axes (or whatever the plural of "axis" is). Especially when the temperature changes.

My concerns with mounting it in or around the dash are that extra vibration and noises through the calculations off. The vibrations probably throw off the gyros a little, and the unit determines your RPMs from the decibel level in your car, which are used in the calculations of torque and horsepower and the neat little graphs. Keep in mind that we can take apart the dash without even unscrewing anything, for the most part, so its not exactly tightly held together. The huge windshield mount probably reduces those types of interference as much as possible. But it definitely prevents me from using it more often, since it's very obvious and easily confused for a radar detector. Takes up quite a bit of my road vision too. So yeah, maybe you give up some accuracy in order to have the extra convenience.

Regarding the screen, assuming you're going to use it primarily very late at night like I do, you need to have it very close to you in order to read any of the little details on it. Mounting it in the center of the windshield isn't nearly close enough (although that's recommended for accuracy). On the other hand, the other units might be even worse. I may have read somewhere that the AC22 isn't backlit. Still, you have more freedom locating the AC22 because it doesn't need a power cord.

Finally, don't be so sure you don't want the downloading feature. The GTech presently stores 5 runs at a time. The screen is tiny, and its impossible to compare two runs side-by-side. Plus you need to have the car running and the unit plugged in to power it. If you're going to use it to compare mods, I'd think it'd be much more useful to have them on a PC, where you can compare graphs side by side at your leisure. I'm trying to come up with a small, in-car PC install for this purpose, but GTech's refusal to release any sort of stopgap downloading software has completely frustrated that. What's especially irritating is that the previous version of the unit's internal "firmware" allowed a limited amount of that, but when I updated the internal firmware it took that ability away. Never buy a product that sells you the "free updates/upgrades" garbage, that's the first development cost they throw out the window when they realize it's not going to make them any more money.

-Jack
Obsidian/graphite '03 Coupe premium nav