#1: Speedo Trouble Author: puggy206, Location: scunthorpePosted: Thu Dec 22, 2011 12:07 pm ---- Last month i decided to change my alloys to some aftermarket ones, so my standard wheels were 195/50/r15, and so i bought some wheels that was close to them 195/55/r15 and i have noticed that my speedo has become about 5 mph out. i know that changing the size can alter it but all ive changed is the width, what could have cause the speedo to become wrong?
Thanks All
#2: Re: Speedo Trouble Author: HDI90, Location: sunny stokePosted: Thu Dec 22, 2011 12:18 pm ---- All speedos will be out, 3mph is the normal
#3: Re: Speedo Trouble Author: puggy206, Location: scunthorpePosted: Thu Dec 22, 2011 12:33 pm ---- i understand that most speedos are out anyway and at higher speeds they get worse, but it used to be pretty accurate, its only after i changed the wheels the speedo went out.
#4: Re: Speedo Trouble Author: Lee, Location: EnglandPosted: Thu Dec 22, 2011 12:40 pm ---- Different radius and circumference affects the speedo
Fit 205/40/17 or 185/60/14 and your speedo will be accurate.
#6: Re: Speedo Trouble Author: puggy206, Location: scunthorpePosted: Thu Dec 22, 2011 1:30 pm ---- My tom Tom but I'm not sure how accurate they are
#7: Re: Speedo Trouble Author: MrBSI, Location: What's it to you? ? ?Posted: Thu Dec 22, 2011 1:31 pm ----
puggy206 wrote:
My tom Tom but I'm not sure how accurate they are
A lot more accurate then the 206 speedo.
Tom tom will be using GPS.
#8: Re: Speedo Trouble Author: puggy206, Location: scunthorpePosted: Thu Dec 22, 2011 1:34 pm ---- oh well in a way its on the good side of beiong wrong (saying im doing 40 when im doing 35) means im less likely to get a ticket... more likely to p**s other drivers off though haha
#9: Re: Speedo Trouble Author: -Dave-, Location: North ManchesterPosted: Thu Dec 22, 2011 1:53 pm ---- Mine is out about 4mph but when you consider the price to get it sorted you soon get used to it.
#10: Re: Speedo Trouble Author: welshie87, Location: South WalesPosted: Thu Dec 22, 2011 4:38 pm ---- remember there is a short delay in readings from sat navs plus with 3-4 mph speedo's are likely to be out best bet is to find somewhere we're there are laser speedos which give a speed reading we have them around here the others pug is about 3mph so your reading isnt to bad. And your right with it being out by 5 mph very rare you will get yourself a speeding ticket. Getting your alloys might save you money in the long term lol
#11: Re: Speedo Trouble Author: Seabook, Posted: Thu Dec 22, 2011 5:19 pm ---- mine was spot on with 195/55/15 tyre
#12: Re: Speedo Trouble Author: Rob2859, Location: HalifaxPosted: Thu Dec 22, 2011 8:49 pm ---- I don't have a speedo at all I know how fast I am going by the RPM
#13: Re: Speedo Trouble Author: Ash, Location: Running from Ant and Lee and Adam...........Posted: Fri Dec 23, 2011 9:09 am ----
Rob2859 wrote:
I don't have a speedo at all I know how fast I am going by the RPM
That has the same issue as the speedo..
#14: Re: Speedo Trouble Author: Rob2859, Location: HalifaxPosted: Sat Dec 24, 2011 5:31 pm ----
Ash wrote:
Rob2859 wrote:
I don't have a speedo at all I know how fast I am going by the RPM
That has the same issue as the speedo..
Yes I know I was just saying. Also there is a very easy and free way to adjust your speedo nobody has mentioned yet
#15: Re: Speedo Trouble Author: Ash, Location: Running from Ant and Lee and Adam...........Posted: Mon Dec 26, 2011 5:33 pm ----
Rob2859 wrote:
Ash wrote:
Rob2859 wrote:
I don't have a speedo at all I know how fast I am going by the RPM
That has the same issue as the speedo..
Yes I know I was just saying. Also there is a very easy and free way to adjust your speedo nobody has mentioned yet
If you mean taking off the needle and moving it, it won't work either as the amount of miles per hour that is out is a percentage so it varies with speed. Non linear..
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