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  • Member For: 21y 2m 1d
  • Location: Bossley Park, NSW
  Turbo6man said:
If you're skeptical (or can't spell), go learn some physics or get a technical buletin from G-Tech to understand how it's done.

you spelt bulletin wrong dude.....

:nono:

A. :nono:

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  • Dark Knight Mafia Member No. - 666
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  • Member For: 22y 2m 5d
  • Location: Toowoomba
  Trough Lolly said:
  Benny said:
I have a G-Tech Pro Competition and the power, torque readings can be quite accurate when the right vehicle weight is entered. I weighed my car on a weigh bridge before doing runs and I was quite suprised at the results.

im still scepticle..

fair enuf u weighed your car.. say it was 1500kg. fair enough.

BUT my poitn still stands if u change the diff ratio to a shorter gearing the acceleration is still going to be stonger and faster than the stock diff.. therefor making the power figures to be greater than they should be..

its to easy to fool if it just runs of g-forces..

It measure power being put to the road in a real situation, as far as I know you still have to do a quarter mile to get a proper reading from it, so if you shortened the diff, and do a quicker 1/4 mile, you probably got more power to the road and that's what it reads. If I could find my user manual I would post what it says about it all.

Dazza.

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  ktford said:
14.5 quite acceptable for a stockie at "the bank"

Scotty

Thanks Scotty, I was a little bummed since I have read some stockies are running very low 14's, but 14.5 is what a stock WRX was running last night so I was a little happier with it then, Willowbank seems to be a slower track IMO than WSID, must be because of the uphill/downhill thing. It was pretty hot when I did tha run, 30 degrees and when it cooled down the engine was hotter, so it made no difference.

Dazza.

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  Turbo6man said:
  Trough Lolly said:
  Benny said:
I have a G-Tech Pro Competition and the power, torque readings can be quite accurate when the right vehicle weight is entered. I weighed my car on a weigh bridge before doing runs and I was quite suprised at the results.

im still scepticle..

fair enuf u weighed your car.. say it was 1500kg. fair enough.

BUT my poitn still stands if u change the diff ratio to a shorter gearing the acceleration is still going to be stonger and faster than the stock diff.. therefor making the power figures to be greater than they should be..

its to easy to fool if it just runs of g-forces..

Diff ratios, wheel sizes, gear ratios have zero input to the G-Tech's calculations. It uses the force of accelleration measured over time - simple, no more no less. If you enter correct weight it can also calculate power. As has been said, it is a true or "real time" measurement of the force/power applied to the wheels and the power readings will be lower than what a dyno will show because it takes into account ALL outside variables acting upon the vehicle at the time of the "run".

If you're skeptical (or can't spell), go learn some physics or get a technical buletin from G-Tech to understand how it's done. And, as for accuracy it is more in the order of 1% not 10%. BUT - like any instrument it is only as good as the operator and errors can easily creep in if not used exactly according to the "book".

What turbo6man said is basically what it says in the manual, considering the accuracy of the timing of the G-Tech, I believe the power function will be accurate also, the problem is backing this up on a dyno, since there is bigger variances there.

Dazza.

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Does anyone have the latest version of the Gtech? Seems a lot more refined at least in design than the older 1994 version which is mostly available on ebay. RR.jpg

  • Dark Knight Mafia Member No. - 666
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  ducatijb said:
2 or 3/10's in drag racing is a bloody long way...believe me :gooff::crybaby:

Sorry I'm on the sceptics side :lol:

look at the first 2 runs though, there is a difference of .0085 & 0.058 respectivley, if anyone is going to willowbank on the 19th of Jan (I know its ages away) I will happily bring it and let you see for yourself.

Dazza.

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  Geeseman said:
Hi Dazza,

Is yours the one above or the older unit (black)?

Mines the older black one, looks prehistoric compared to that one, but I figured it was pointless to spend so much money on the new fancy one when I only want it to mess around with 0-100 and 1/4 mile times.

Dazza.

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  poida97 said:
  Turbo6man said:

If you're skeptical (or can't spell), go learn some physics or get a technical buletin from G-Tech to understand how it's done.

you spelt bulletin wrong dude.....

:tonguepoke:

Edited by jordak

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