Just tested my EFII XR6 5 speed using a G-Tech to time its 0-100km/h and then its quarter mile.
1st try I didn;t watch for the 0-100km/h time, but for the quarter it said I got 14.94 secs @ 95.8 MP/H or 155 km/h
Second Try I got 7.25 sec for the 0-100km/h and 15.42 secs for the quarter. The first launch was so much better than the second, too much wheelspin.
Has anyone used one before and how accurate are they. in the instruction manual it claimed to be almost as accurate as professional equipment. Now my car is stock except for a T-series induction snorkel. I was wondering what other owners of XR6s have got for timed quarters and 0-100km/h times.
I think you can buy a G-tech from Autobarn.
Now accepting donations towards a BA XR6 T U R B O
We had a looooong thread that ended up as CLOSED few months ago when everyone tried that. I can tell you the 0-100 but not sure how you measure the 0-400?????!!! how does that G tech work anyway?
The XR8 got 6.8 seconds before, haven't tried mine yet but I don't think it will get more than 7.5 or so, it's power point from 50-80 and from 100-130 where my engine really screams.
This thread will get very long, i'm telling ya.
I wish I can use that 0-400 thing!! Ok explain to me how does it work and how much is that G tech thingie.
Generally the common consensus is that they a pretty accurate for the ET, but the MPH is around 2-3mph higher as the Gtec gives the actual speed at the end of the 1/4, where as a real 1/4mile track gives the average speed over the last 60ft (or something like that)
14.9 sounds about right to me for an XR6 driven by an owner and not a magazine.
1993 ED XR6 M5 (1 of 329)
Turbo on the way!!
1993 EBII Fairmont (Now wrecking, PM if you want any parts)
1988 Nissan R31 Skyline
The G-tech works via one of those magical semi conductor G force sensors. As used in Airbag systems to identify sharp deceleration of say a brick wall..
Basically if it knows your stationary to start with, then it can measure your acceleration along the length of the entire 400 m and cacluate the distance and speed and it measures the time. It starts the timer as soon as it detects the first bit of acceleration which is accually a pretty neat way of starting a clock.
So speed and distance are not directly measured only calculated.
But they seem to do a pretty good job. Obviously some variation, but there are variations at diffrent 1/4 tracks as well.. Depends on the peice of road your using, friction levels, is it flat etc..
Could get some impressive times if you start at the top of a hill or from a bit of a roll.
Its basically as accurate as a 1/4 mile if used correctly. Of course people could lie, fluff take offs, be bad drivers, not do it on flat road either up hill or down hill etc. just a few degrees will make a noticible effect. Just like at eastern creek..
But convinence it sounds pretty good. Just need something flat, 400m long, legal and safe to your 1/4 speed, start from a standing start etc..
They cost a few hundread dollars.. Autospeed sells them..
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