C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

g-tech, any good?

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Old Apr 18, 2006 | 08:16 PM
  #1  
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Default g-tech, any good?

i know its probably not dead on, but has anyone dealt with the g-tech, either SS or RR? Just wondering if it was worth the money for the results it gives you, does it give you any kind of basis for whether you are headed the right way or not with mods/tweaking? Not sure if I wanna drop $300 on it right now, but if it actually is helpful, and i wont have to continuously go to a dyno to see whats going on with the car, then it might be worth the investment. just want you guys input on it, ive been "educated" on here before and it has saved me a good bit of money in the past.


i searched for this on the forum, but i didnt see any straight up reviews of it. if there is a thread please just send me a link.
thanks

CJ
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Old Apr 18, 2006 | 08:43 PM
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I know I posted some street and track reviews on it here on the forum in the past, but basically it is a nice and fun toy.. Nothing else.

On the street it is all over the place, very innacurate due to wheelspin, etc..

On teh track with a perfect launch, it was within 1 tenth accurate on et, but almost 5mph too fast for the MPH..

I've tested the older pro model and the newer competition models..
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Old Apr 18, 2006 | 10:34 PM
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I have to agree. I just bought the g-tech ss and its fun. In order to get somewhat accurate results everything needs to be set perfectly from what I'm understanding about it. Since I've gotten it I've been through the manual several times and still learning about it. It does run all over the place though with normal driving. I'm not to sure the hp/tq are all that accurate. Hell it told me I had 404 net hp! Wish I did! But theres no way. I think the times are pretty close. When playing with it from 0-60 ft, I had gotten three different times: first was 1.76, second 2.32, and third was 2.09. I'm pretty sure that those are fairly close give or take. Its ends up just being another toy to play with but fun at least for now
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Old Apr 18, 2006 | 10:46 PM
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buy the SS,its faily accurate.

my 84 runs 14.6@93.xx on both track and street using the GTEC SS.

my 70' pontiac runs 12.15@115mph on the GTEC SS.....i hope its accurate so i don't get pissed at the track this summer!
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Old Apr 18, 2006 | 11:09 PM
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Nice toy but it's a lot cheaper to spend $15 for a test n tune at the track and get real results...
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Old Apr 19, 2006 | 12:24 AM
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I compared my 60' times at the track to the gtech pro's 0-60 and found no relationship.

I'd compare ETs, but the local track here is just 1/8th mile.
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Old Apr 19, 2006 | 02:28 AM
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My brother made in car videos of the g-tech in his 97 camaro ss ON the track. I remember the et and mph quite clearly although its been 5 years because we've repeated it to many many people.

Actual ET 13.97 Actual MPH 101

Gtech ET 13.98 Gtech MPH 103

*now ive heard that some tracks uses the last 30 feet and averages your time to cross both beams to get mph. If thats true then the mph is in fact almost dead on. IMO no road is perfectly level like the track, and real roads all have a slight curve in it that might affect data to the gtech.

Most importantly i believe the Gtech IS a great tuning tool. as long as you are using the same stretch of road to compare results.
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Old Apr 19, 2006 | 03:46 PM
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I have one of those $40 models that I bought years ago. Fun toy, I used it a few times, and now it measures the speed of the dust in my closet pretty accurately.
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Old Apr 19, 2006 | 04:18 PM
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Originally Posted by GIJoe
I have one of those $40 models that I bought years ago. Fun toy, I used it a few times, and now it measures the speed of the dust in my closet pretty accurately.
Want to sell it?
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Old Apr 19, 2006 | 04:32 PM
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awesome, thanks for the replies you guys. i can always count on the forum to have tried it/fixed it/destroyed it.



CJ
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Old Apr 19, 2006 | 04:52 PM
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Great fun dash and conversation toy... if you have the spare bucks ... have one as a toy only
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Old Apr 19, 2006 | 06:53 PM
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I have the Escort G timer. It gives consistent results. With it I was able to realize after a tranny rebuild (A4) I had no 1st gear as my times were off by over a second.
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Old Apr 19, 2006 | 07:10 PM
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Old Apr 19, 2006 | 09:30 PM
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Try one of Racepak's G2Extreme's. A bit more money
but a lot of capability in the default package and very
extensible/scalable.

www.g2extreme.com

.
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Old Apr 20, 2006 | 04:18 AM
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Originally Posted by CentralCoaster
I compared my 60' times at the track to the gtech pro's 0-60 and found no relationship.
In what way? Where number more or less than your actual times?

I can't get 60ft time under 2.3xx sec with g-tech and I did consistent
1.9xx - 2.0xx times on track.
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Old Apr 20, 2006 | 01:02 PM
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On my G-Tech, the trap speed was always consistently +6 mph too high. The ET was about 0.1-0.6 optimistic side by side compared with the drag strip ET in the 1/8 mile.

The day I first used it on my Vette, I didn't believe it when it said I ran a 8.0 @ 90 mph and did a 12.30 @ 113 mph, 2.6 60' time.
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Old Apr 20, 2006 | 01:32 PM
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I hear they aren't as accurate with cars that don't have tight suspension. I know my 96 squats a lot with hard acceleration and especially with quick upshifts.
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