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General => General discussion => Topic started by: dragongreengolfgti on 30 March 2012, 20:59
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Well i done a 230 mile round trip today mostly motorway bit of a roads and was curious at how far out my speedo was against the gps sat nav reading and any figure given on my speedo at any mph was 2 mph out from the sat nav :smiley: just thought i'd share that with you all :laugh:
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My speedo 80
Sat nav 75
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Well i done a 230 mile round trip today mostly motorway bit of a roads and was curious at how far out my speedo was against the gps sat nav reading and any figure given on my speedo at any mph was 2 mph out from the sat nav :smiley: just thought i'd share that with you all :laugh:
That's not bad at all!
What sat nav is it?
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Well i done a 230 mile round trip today mostly motorway bit of a roads and was curious at how far out my speedo was against the gps sat nav reading and any figure given on my speedo at any mph was 2 mph out from the sat nav :smiley: just thought i'd share that with you all :laugh:
That's not bad at all!
What sat nav is it?
thats what i thought :smiley: it's a garmin satnav not sure on the model etc but its a good one :wink:
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I though speedos were out by +/- 3% anyway?
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I though speedos were out by +/- 3% anyway?
Yeah but on a 14 year old car running different size wheels to standard etc i think 2 mph difference is quite good :smiley: i'm just surprised thats all lol
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(http://i2.kym-cdn.com/entries/icons/original/000/006/151/tumblr_lltzgnHi5F1qzib3wo1_400.jpg)
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I've not tried it in the new car, but in my last 2 cars the speedo would indicate 33mph when the sat nav gave the true speed as 30mph.
I should try it in the new car though just so I can benchmark it, it shouldn't be too far out as it's only 5 years old.
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car says 70, sat nav says 77, didn't feel very fast, was in the left lane aswell :grin:
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With 40PSI in all four tyres the Skoda reads DEAD accurate.
It's pretty scary. :grin:
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I though speedos were out by +/- 3% anyway?
+/- 10% My car reads 79 Satnav says 70, car reads 60 Satnav reads 54.
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sat-nav isn't 100% accurate (due to signal delay etc)....... and modern speedo's should be more accurate than +/-10% as it's an electronic signal rather than a cog and cable