GlanzaJim Posted July 23, 2010 Posted July 23, 2010 hello. i need to know can my speedo be out? by 7mph. my mate in his 106 vtr had a digital reader what plugs into your lighter hole. and when i was doing 105 he was doing 98? well thats what my mate thinks when i looked and i was doing 100 so can it be out by 7mph? Quote
enots Posted July 23, 2010 Posted July 23, 2010 most speedo's on cars read over if im right in thinking. Quote
GlanzaJim Posted July 23, 2010 Author Posted July 23, 2010 most speedo's on cars read over if im right in thinking.maybe if i get my car dynoed will it tell me? Quote
ryan lang Posted July 23, 2010 Posted July 23, 2010 mine is out by about 4best bet is to drive towards 1 of those flash speed thingys which goes red if your over the limit and green when your unduer the limit and work it out from there Quote
Carl. Posted July 23, 2010 Posted July 23, 2010 yeah mine is out by about 4/5mph. i noticed it straight away when i bought the car and ive found out how much its out by driving towards one of those screens that tell you what speed your doing to try and slow you down Quote
Scott-EP Posted July 23, 2010 Posted July 23, 2010 Remember if you have different size wheels on your car it effects the calibration of your speedo Quote
rob_bower Posted July 23, 2010 Posted July 23, 2010 yea mines out by 6mph at 60 so to actually do 60 i have to be doing 66!! Quote
Giggz Posted July 24, 2010 Posted July 24, 2010 Mines out by 2/3 at low speed then goes up to about 5 past a 100. Quote
Stulet-GTT Posted July 24, 2010 Posted July 24, 2010 Put a sat-nav in ya car an drive at a steady 30 or 60 (not 105) an look at the speed on it an ya car..Mine is out by about 5mph... Quote
LukeSR Posted July 24, 2010 Posted July 24, 2010 yea mines out by 6mph at 60 so to actually do 60 i have to be doing 66!! Same Quote
Liam_D Posted July 24, 2010 Posted July 24, 2010 i Reckon mine is out too, still only go by what the clocks saying though!! As said having Aftermarket/bigger wheels affects the speedo calibration. Quote
Galliano Posted July 24, 2010 Posted July 24, 2010 So say I have 15 inch wheels and standard 14s (with bigger tyres) are standard... it shouldn't make much of a difference right? 14 insch with large tyres vs. 15 inch 195/50/15... I tend to go through speed cameras at 25 with this in mind, though last night I was plodding through one at 30 but stories are told that speedcamera only clocks 37mph upwards... god its confusing, but i'm very cautious of it. Quote
Liam_D Posted July 24, 2010 Posted July 24, 2010 Same here i always make sure im doing like 5mph less then the speed limit when i go through cameras just to make sure!! Quote
GlanzaJim Posted July 24, 2010 Author Posted July 24, 2010 Same here i always make sure im doing like 5mph less then the speed limit when i go through cameras just to make sure!!yeap same lool Quote
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