jonlarge Posted May 30, 2006 Report Share Posted May 30, 2006 Just got my self the Competition version of this: G-tech Pro Just wondered whether anyone here used one and what sort of results they get with their R (unmodified if poss)? For example it tells me my 30mph to zero braking distance is around 33 feet (The Highway Code's 30mph distance is 75 feet)! New to all this and that seems an unbelievable result. Link to comment Share on other sites More sharing options...
nutkins Posted May 30, 2006 Report Share Posted May 30, 2006 Can't help you with your new (cool) gadget, but those stopping distances are about a 100 years old recorded using cars with old drum breaks etc. So your figure is probably correct I'd say. Link to comment Share on other sites More sharing options...
Mook Posted May 30, 2006 Report Share Posted May 30, 2006 You need to spend a long (and I mean long!) time setting up a GTech to get it to give accurate results. 33 feet sounds about right - remember that the highway code is a guide! I never ran the GTech on my R32 before it was modified, but what kind of info are you looking for? Link to comment Share on other sites More sharing options...
Larder Posted May 30, 2006 Report Share Posted May 30, 2006 Looks good - but all that information collected through the fag lighter - can't be right can it??? Link to comment Share on other sites More sharing options...
Mook Posted May 30, 2006 Report Share Posted May 30, 2006 It runs on the electrical pulses going through the wiring loom to get the RPM. Most everything else works on a centrifuge in the middle of the unit, to figure out acceleration, speed etc. Link to comment Share on other sites More sharing options...
AGK512 Posted May 30, 2006 Report Share Posted May 30, 2006 Dont forget the 75ft includes your reaction time only 45ft of it is your stopping distance once you have hit the pedal. 30mph is about 44ft sec so they are allowing a bit under 1 sec reaction time Link to comment Share on other sites More sharing options...
Larder Posted May 30, 2006 Report Share Posted May 30, 2006 [ QUOTE ] It runs on the electrical pulses going through the wiring loom to get the RPM. Most everything else works on a centrifuge in the middle of the unit, to figure out acceleration, speed etc. [/ QUOTE ] you know every thing you Link to comment Share on other sites More sharing options...
v6tas Posted May 30, 2006 Report Share Posted May 30, 2006 [ QUOTE ] [ QUOTE ] It runs on the electrical pulses going through the wiring loom to get the RPM. Most everything else works on a centrifuge in the middle of the unit, to figure out acceleration, speed etc. [/ QUOTE ] you know every thing you [/ QUOTE ] He's not bad is he eh ! Link to comment Share on other sites More sharing options...
jonlarge Posted May 30, 2006 Author Report Share Posted May 30, 2006 Should I post some graphs? The HP and torque ones don't mean a thing to me! The set-up involved entering the weight of the car in kg. Here's how I got to a number: 1477kg kerb weight - I got this from the VW manual (which includes a 90% full fuel tank) My weight - 82.5kg 1 kg for the sat-nav (as I guess this isn;t included in the kerb weight) I also added 4.61kg to cover the remaining 10% of fuel (I used Optimax with a density of 743kg/m3) as I was running with a full tank. Is there anything I forgot? As you can see I did try and take this seriously! I suppose ultimately I should take the car to a public weighbridge to get her weighed?! The remainder of the set up involves plugging the device into the cigarette lighter then revving the engine, in neutral, to 4000 rpm (pressing OK), then to 2000rpm (and pressing OK). The unit then calibrates itself. Finally, you roll forward for a couple of feet then stop and the unit 'levels' itself. Link to comment Share on other sites More sharing options...
BigMeanBob Posted May 31, 2006 Report Share Posted May 31, 2006 I've had one of these for about 2 years now...don't think I've ever actually hooked it up though Link to comment Share on other sites More sharing options...
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