I took my G-Tech out tonight and made a couple of runs. My only mods are one chamber Flowmasters and a Superchip(R7).

My best time was 13.47 at 109.7mph.

If anyone else has had a chance to make some runs with their G-Tech, please post your times.

HANKFAN

 

I g-teched 0-60 at 5.62, on a different run, 1/4 mile, 13.39@115, but I think the weight was set to my friend's 2700 lb. Type R. I think the 0-60 is accurate though.

No chip, stock airbox, with straights (then)

[This message has been edited by Tundra (edited 10-01-2000).]

 

G-Tech 5.6 0to60, 13.62 @105 1/4 mile.
I don't know if this is accurate though, my 1/8 mile times are in the 9.168 to 9.231 range at Jax. Raceway on spinning F1's which according to the conversion calculation I have, should be equal to 14.3 to 14.4 in the 1/4 mile.

Sudsfixer



PS Tundra, You only need to input weight for HP calculation

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Silver 00
A.R.E., Valentine One, G-Tech, Pioneer TS-A6865
stock 9.168 @77.45 1/8 mile
Lpjjr@aol.com

 

I have had a g-tech for almost a year now and have made many runs with it.My best 0-60
time is 4.61 and 1/4 time is 12.95 all with stock f1`s.I took this g-tech to the track
several times and made at least 5 passes with it on not one time was it worse than a full tenth off in the quarter.My best times were in cool weather and on good pavement that I felt I could hook best on!

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Cobra Ram Air Hood
Johnny Lightning Ram Air
JBA Headers
Pro M 80 Mass Air
SVO Oval bore T.B
PHP Chip
Stock F1`s

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Best E.T 1/4 13.13
Best MPH 1/4 105.38
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I dont have a GTEch but the guys I race 1/4 mile with that run in the 12's dont run 108 mph terminal speeds.

I admit I dont know how a accellerometer can tell when you travel 1/4 mile. Even if it were connected to your Speedo it wouldnt be correct due to slip.

New technology hard to believe..

Doug

 

No times yet but this is from the site.
"G-TECH/Pro measures your speed and distance traveled by integrating acceleration over time. Basically, if you know how fast you are accelerating for a certain time period you'll know how much your speed has changed after that time period. So, if you start of from zero speed then you'll know what your speed is after every time period. These time periods are very small (2.5 milliseconds) and that's how G-TECH/Pro maintains its accuracy.

Distance is measured in the same fashion, if you know how fast you are going for a certain time period you will know what is the distance traveled during that time period"

It's just equations. Did you take Physics silver 2k?

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C. Marshall
"Fusion"
There is no spoon.

 

I have a vericom performance computer (have had it about 3 years and have had it on several vehicles at several tracks both 1/8 and 1/4 mile. It is always .35 to.40 slower than the track (due to rollout) and reads right at 1 mph too much. It is extremely repeatable. I had it on the windshield last night at the track and on my 8.83 at 79.8 (track timeslip) the 0 to 60 was 5.79. I have gone a best of 5. 83 0 to 60 on the street.

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You see higher mph figures with the G-Tech because it only measures your speed at 1/4 mi, whereas at the dragstrip, the MPH displayed on your time slip is an average of your MPH 66 ft from the finish line and the actual speed at the finish line.
I've never used one, personally, but as far as I can tell, they tend to be a little on the quick side when it comes to 1/4 mi ET vs what you run at the track. But then again, to a bracket racer, a tenth of a second is an eternity.

 

Fusion take it easy on the personal shots.

A good physicist will explain the variables and assumptions his papers are based on. Unfortunately marketing a $150 device based on its possible failings wont get the maker very many buyers.

The G -tech Only measures acceleration, not speed or HP or Torque or anything else. All other numbers are calculated based on static assumptions that G tech doesnt release.

Explain to me in equations how the G tech knows how far you went ??
Explain to me in a different equation how it knows how fast you were going when you passed what it calculates is a 1/4 mile.
How does the cascade of assumptions account for the spike in G forces on gear shifts ?? Will it say I went faster if I use my old Superchip that shifted like a sledgehammer ?? Does it somehow factor in wind resistance as well ??? A 20 mph hour tail wind will not affect the accelerometer or will it Fusion you tell me……

It makes a calculation based on weight of the vehicle and the G forces sensed by the accelerometer. I wonder what fudge factor they put in the equation for the give of the suction cup or for that matter the give of the windshield to the g forces.

My point is that it is that just like different dynos and different Drag strips they all have issues that the intelligent observer will realize when making comparisons. I could see some value in comparing your truck before and after a mod, but to try to compare a G Tech ¼ mile trap speed to a slip from a sanctioned track is crazy. The same way comparing times at the Texas MotorPlex and the Drag strip at Hallsville makes no sense since the weather and the track conditions are vastly different.

Doug

 

Silver_2000: There's no magic or fudge factors, just calcultions based on G-forces and time, spikes included(those "spikes" jumped me a 1/2 car on every shift against a Z-28, so yeah, they are part of the calculation).

------------------
Red '00 Lightning,
Power Surge Performance enhanced,
Sound effects provided by Flowmaster,
13.532@102.14

 

4D

The spike helped against the Z28 and that is great. But you have no idea what they did to the Gtech calculations. And you cant make any assumptions that because it helped in a street race that it changed anything in the GTech.

Look all over the Net - One comment after another about the issues with the G tech, High terminal speed calculations, HP calculations off, etc etc

If you ever bring your truck down to Texas I will put $100 bucks against you doing 108 MPH in the Quarter on a track with a 13.X second ET.

To me the G Tech is a tool/toy. It is probobly fun to play with. The real test is a side by side race. Either on the street or the strip. But at this point I can tell that people think I am pissing on thier Wheaties by having a discussion about it so my participation will stop here.

Doug

[This message has been edited by Silver_2000_! (edited 10-02-2000).]

 

If you want over 500rwhp, tell the Gtech you weigh like 7000lbs or something, this truck is AWESOME!!!

 

Silver_2000:There is still no magic or fudge involved. The spike is the same as the rest of the calculation:thrust over a time period, just a larger amount over a shorter time. I have been all over the net and am aware of the high MPH readings of it(read kristi99's explanation). I'm also aware that as a tool(which is what I bought it for) it does it's job well and I have made no other claims for its use.

------------------
Red '00 Lightning,
Power Surge Performance enhanced,
Sound effects provided by Flowmaster,
13.532@102.14