RedM Posted March 23, 2006 Share Posted March 23, 2006 What's the easiest way of doing this? I think mine is faster than I'm actually going unless it's just coincidence that means I end up with only impatient people behind me. No suggestions to keep driving through speed cameras until they go off or overtaking police cars, thank you Link to comment Share on other sites More sharing options...
Ian W Posted March 23, 2006 Share Posted March 23, 2006 get someone else's car to drive behind you at a constant distance. you'd have to bear in mind that all car's speedos will over-read slightly though. Link to comment Share on other sites More sharing options...
jamesmark Posted March 23, 2006 Share Posted March 23, 2006 get some one with gps or like supra man says get someone to drive behind you, mind you you need to phone and drive Link to comment Share on other sites More sharing options...
cleland Posted March 23, 2006 Share Posted March 23, 2006 I used a gps system, it was 5mph out on top speed. It also showed up on rolling road. Link to comment Share on other sites More sharing options...
edd_t Posted March 23, 2006 Share Posted March 23, 2006 ive done the phone and drive thing. is pretty difficult. am trying to borrow a GPS off someone now. my speedo is out quite a bit Link to comment Share on other sites More sharing options...
sarjo Posted March 23, 2006 Share Posted March 23, 2006 ive done the phone and drive thing. is pretty difficult. am trying to borrow a GPS off someone now. my speedo is out quite a bit So's mine Edd - 15-20 mph Link to comment Share on other sites More sharing options...
Ian R Posted March 23, 2006 Share Posted March 23, 2006 borrow a Road Angel 2 Link to comment Share on other sites More sharing options...
edd_t Posted March 23, 2006 Share Posted March 23, 2006 think mines out by about 10mph Link to comment Share on other sites More sharing options...
jamesmark Posted March 23, 2006 Share Posted March 23, 2006 are speedos not meant to read out by 10% anyway so 30=27 40=36 50=45 and so on........... i knwo i would rather have that than doing the correct speed and just being slightly over, then get three points and a £60 handout to the government Link to comment Share on other sites More sharing options...
Ben-san Posted March 23, 2006 Share Posted March 23, 2006 I think mine's about 10mph out as well... was having a spirited rolling start session with a fellow member, and everytime he said start at 70 leptons, I'd be creeping forward about 0.5 car lengths per second Link to comment Share on other sites More sharing options...
MrRalphMan Posted March 23, 2006 Share Posted March 23, 2006 Edd where abouts in Essex are you? Link to comment Share on other sites More sharing options...
michael Posted March 23, 2006 Share Posted March 23, 2006 Mine is 8mph out at an indicated 80 - GPS shows 72mph Link to comment Share on other sites More sharing options...
jamesmark Posted March 23, 2006 Share Posted March 23, 2006 Mine is 8mph out at an indicated 80 - GPS shows 72mph then IMHO your speedo is bang on, as my mates skoda VRS was the same and then he got a leon and it was the same Link to comment Share on other sites More sharing options...
RedM Posted March 23, 2006 Author Share Posted March 23, 2006 Mine is 8mph out at an indicated 80 - GPS shows 72mph Is your GPS wired in? Could I arrange a ten minute use of it sometime? Pretty please with a pillar pod on top.... :D Link to comment Share on other sites More sharing options...
Guru Posted March 23, 2006 Share Posted March 23, 2006 Drive thru a speed camera at 100 and I am sure it will tell you your correct speed in a few weeks Seriously now .....borrow a GPS if your mates have one Link to comment Share on other sites More sharing options...
MrRalphMan Posted March 23, 2006 Share Posted March 23, 2006 Mine is 16% fast. GPS 30 = Speedo 35 GPS 70 = Speedo 82 Link to comment Share on other sites More sharing options...
ardasaliah Posted March 23, 2006 Share Posted March 23, 2006 Mine is 8mph out at an indicated 80 - GPS shows 72mph how acurate is GPS? Link to comment Share on other sites More sharing options...
MrRalphMan Posted March 23, 2006 Share Posted March 23, 2006 I think it was quoted (with a strong signal) ~1MPH Link to comment Share on other sites More sharing options...
Terminator Posted March 23, 2006 Share Posted March 23, 2006 Veryat constant speed, but it often cant keep up with fast acceleration LOL Link to comment Share on other sites More sharing options...
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