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G-Tech Meter

rdgfx3

Well-known member
Joined
Jul 25, 2001
Messages
202
Location
Rowlett,TX.
Corvette
2008 Silver Coupe
Does anybody (besides me,of course)have a G-Tech?
I get ridiculous readings on mine sometimes that make me wonder just how accurate that thing is.

As small as it is,how the hell can it be accurate?:confused

I usually get acceptable,though optimistic,readings,but I just discovered that according to the G-Tech,my L-98 has 718 horsepower.That's up from my last reading of 288.

Man,ya take that frisbee off and tap into all sorts of power:)

Sorry I haven't posted that pic yet,but I have been:drink
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,236
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
You got a lot of horsepower from that engine Richard, and you didn't even remove the frisbee or chrome the banana relay pin? How'd ya do it? :L

I don't have a G-Tech, but somebody here had a thread going on theirs a while back. I'm sure somebody will pipe up soon. Hang in there. ;)

BTW, the ARE supposed to be fairly accurate.

_ken
 

TODD L GRIFFITH

Well-known member
Joined
Jul 12, 2001
Messages
1,120
Location
Middleboro, MA
Corvette
99' MR Coupe, 04' Silverado 03' ZO6 Sold
g-tech pro

I have a g-tech pro and it seems to work fine. You need to be on a level surface to get the best results. You can also use a horsepower calculator and plug your elapsed times and vehicle weight into to see if the numbers you are generating are in the ballpark.
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
I've got one as well; haven't used it on the Vette yet but it got reasonable numbers on the other cars I've used it on. Gotta make sure the weight is accurate.

Size matters not... accelerometers can be very tiny.
[RICHR]
 

Hib Halverson

Technical Writer for Internet & Print Media
Joined
Jan 10, 2001
Messages
13,452
Location
CenCoast CA
Corvette
71 04 12 19
My choice for self-contained, vehicle dynamics testers is the Vericom VC2000, however, there are many people who use the g-Tech and, admittedly, it cost quite a bit less than a Vericom.

I've heard other anecdotal accounts of such innaccuracies in g-Tech data. It was explained to me once that the g-Tech's mounting is not as stiff as it should be and, occasionally, the motion of the car at launch causes inaccurate readings because shock loads cause the mounting to flex a bit.

Self-contained, accelerometer based devices need a very rigid mounting system to prevent inaccuracies due to the mounting system itself from being introduced to the data.

One of the reasons I like the Vericom is its four-point mounting.
 

misterKTM

Well-known member
Joined
Nov 22, 2001
Messages
76
Location
colton, oregon, usa
Corvette
'93 Black 6 Speed
how much do these devices cost ? I might be interested in getting one - its gotta be cheaper than going to the track all the time to see if a mod has helped or hinderd.
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
misterKTM said:
how much do these devices cost ? I might be interested in getting one - its gotta be cheaper than going to the track all the time to see if a mod has helped or hinderd.

$149 plus shipping straight from the manufacturer. Also check eBay - I picked mine up for about $99.

The other poster was correct - mounting stiffness does make a big difference...
[RICHR]
 

vms4evr

Well-known member
Joined
Jul 18, 2001
Messages
466
Location
Durham, NC
Corvette
2002 Flat Black Z06
How about the Race-Technology AP22. $250. Doesn't look too shabby with the listed features compared to G-Tech and way cheaper than a Vericom.
Graham
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
Wow... even the AC-22 at $190 looks pretty sweet. The UI is *much* nicer than that of the GTech, which is my biggest complaint about it. Thanks - I'd never heard of this unit. Wonder how its accuracy is in real-world usage.
[RICHR]
 

MoeJr

Well-known member
Joined
Jun 7, 2002
Messages
797
Location
Londonderry NH USA
Corvette
Vetteless
I have a GTech and it works great. is usually .1 sec slower than actual ET and 3-4 mph high.:D
 

jstkrsn

Well-known member
Joined
Jun 3, 2002
Messages
59
Location
Parrish, FL, USA
Corvette
1992 LT1 White Conv.
I have an AP22. It works great. The times posted are a little higher. I only checked at the track once.

----------- Track --------------------------------AP-22
60ft -- 2.208 s ------------------- 2.37 s --- 30.3 mph
330ft -- 6.056 s ------------------- 6.22 s --- 61.8 mph
1/8 -- 9.202 s -- 78.84 mph ---- 9.39 s ---79.7 mph
1/4 -- 14.11 s -- 99.37 mph ---- 14.35 s ---99.0 mph

This was at Carlsbad Raceway, Calif. 7/28/02

I liked it because you can check 0-30, 40, 50, 60 whatever times.
 

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