Dont want to start a flame war here,just some opinions.I own a G-tec,and if set up accuractly,smooth road,etc all that stuff,id say its within+- .1-.2,but have seen a good bump knock off .5 sec LOL.I concider them a really neet toyfor cking mods,but I (opinion here)dont believe in quoting them as (true ets)very close and all,but i kinda quit listining when someone starts bragging Gtec times ,and has no real timeslip.There are just too many variables that can drasticallly change the et.Just my opinion,there seems to be quite a bit of this ,ET's with incredably high MPH,unknown 60 ft times ETC

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86 z28 zz4 ssm lift bars ,3.73 simesed runners and a traction deficient 13.707@101.02,on a 2.16 60 ft on 295/50/15 junk street rubber ,best MPH run 13.82@102.7,69 AMX,390 4 speed sticky tires and other stuff..12.94@102.3

 

i fully agree with you, the g-tech is a good tool, but by no means would i say my car runs this and that in the 1/4 with just a g-tech time and no actaul track results. they are pretty acurate but i wouldnt build everything around it and belive it all the time.

 

you must also remember the g-tech begins counting your e.t. when the car starts to move, hence no reaction time. i would add about 8 tenths of a second to any g-tech time to account for this.

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1986 IROC-Z
305 LG4 w/ TH700-R4
Edelbrock TES headers & Y-pipe
3in Edelbrock cat-back
K&N air filter
Direct wired fan
TransGo shift kit

 

I took mine to the track and found my ET to be about 2 tenths quicker with the G-Tech.

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1991 5.7L Z28
14.43 @ 96.16 MPH

 

True, but when I say that my car runs a 12.5 at the track I sure don't add the R/T to the ET. Also, I've never seen a timeslip that added R/T to the ET.

Chris

 

reaction time IS not factored into ET at any track. if it is...they are wrong.

I believe the systems most tracks use have a laser that starts the counter the second the laser is crossed, which is at the begining line and another laser at the end of the track. This example could be wrong but I am positive reaction time is not included into the ET.

 

You're right, you can sit at the line for a minute and it's not counted.


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2 Tickets to game= $250
Gas= $20
Sitting 20ft. from MJ= Priceless
'86 IROC T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK HEADERS Hooker CatBack
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

 

I G-tech CAN be fairly accurate with e.t. BUT it needs to be perfectly leveled, and you need to run it on a FLAT, LEVEL road. If you run on the same stretch of road every time it can be useful tool for comparison. In my opinion posting G-tech times in your sig. is a little bit crazy but I understand that there isnt exactly a track close to everyone.

Peace

 

Unless you've got a timeslip to prove it your claims mean nothing. G-Tech times get no respect from me.

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1989 Mustang LX 5.0 Coupe
13.29@106.66 - needs more gear and converter

1992 Mustang LX 5.0 Convertible
14.23 @ 95.82 - 100% bone stock motor

1993 LX 2.3L Hatchback - "The Ride to VCU"

Moderator Stangtec.com, SN95.com

Co-Founder, Tri Cities Mustang Club
Amelia and Nic's Twin Terrors

 

LOL who would try to get respect with a GTech time? I use a Gtech time in my signature because I like to poke fun at one of my own cars. I'm sure as hell not going to go spend $25-30 to run my V6 Firebird, my S10, my convertible, or my Grand am on the strip. Especially since my local strip has been on crack for the last two years. So if I want to use a Gtech to guage the performance of one of my cars, BFD, its not like any number posted anywhere really means anything. So what if I say I have a time slip, I could scan it and replace the numbers with a nice unbelieveable ET and MPH.

Gtech's are for fun, thats it. A buddy of mine got one and we ran everyones beaters with it, and a couple of our normal cars. Truth told, my Formula ran two tenths slower on the GTech then it did on the track, only difference was more tire wear and two 200lb passengers.

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Drew
predatorman@hotmail.com
83 Camaro 5.0L *1995-98*
87 Iroc 5.7L
91 Formula 5.7L 14.3@98mph
91 RS Convertible 5.0L
91 Firebird 3.1L 17.00@82mph *Gtech*
92 S10 2.8L
98 Grand Am GT 3100
Parts for sale

 

Then why don't G-Tech times count, it seems to me they are very accurate, nothing else comes close. So what if they are a +- .2 . Personally, though one should run the car a few times and throw out the high and low, that's what the directions say I believe.

 

There better than the stopwatch method a couple of kids used in high school. They are accurate for what the cost and what they are. It's not like someone has a 1/4 in there back yard! Also even if it is wrong if the smae car stock runs a 15.6 on the g-tech and then adds mods and runs a 15.2 on the same g-tech you can still tell your mods made a difference with it.

 

If two cars were tested on the same stretch of road you could make an acurate comparison, but thats what stoplights are for .

 

I only use mine to make runs on the same stretch of road when I do mods. It is good for that, but beyond that, I would never post it as 1/4 numbers without pointing out it was g-tech, as WE ALL know the inherent limitations with the devices by now.

 

I like it.

 

Great topic guys keep it up!!!!!

 

This is like a Street Racing and Drag Racing post in 1 since your running the 1/4 mile on the street!! I'll just leave it here.

 

always pick the lane with the bump!!!!!!LOL

 

I like it although I hardly use it anymore. I think it's fairly accurate time wise with the speed being kinda high but I've read that's because it measures your speed at the exact end of the 1/4 and a track uses the last 60 ft of the track to get your speed.

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2000 NHRA Edition T/A
Pewter Metallic
A4 3.23 Gear w/GSC's
Whisper lid, MAF Ends, Ram Air Kit, Exhaust C/O
Nitrous Express 150hp kit
60ft:1.94 na
1/8th:8.381@86.03 na
1/4:12.963@108.44 na
1/8th:7.87@94.30 n20
1/4:11.99@120.08 n20

1989 IROC-Z 5.7 Dual Cat
Auto w/3.27 gears
Jet Stage 2 chip
Modified Air Box&MAF
AFPR&Air Foil