Speedometer Correction

Speedometer Correction

Author
Discussion

Utterly Clueless

Original Poster:

1,981 posts

157 months

Thursday 7th May 2009
quotequote all
Hi guys,

Simple question, but Obviously not for me.

Where would i take my car to have the speedometer reconfigured??

Its currently reading about 7-8mph above the actual speed at ALL speeds, and I would like to have it spot on.

Would a normal garage be able to sort it out? or would i have to take it somewhere specific?

Thanks

Thom

Lil' Joe

1,548 posts

150 months

Thursday 7th May 2009
quotequote all
Didn't see this coming hehe

Utterly Clueless

Original Poster:

1,981 posts

157 months

Thursday 7th May 2009
quotequote all
Lil' Joe said:
Didn't see this coming hehe
Its always been out, having a 5% lower profile tyre has only put it out a little bit more, but it was stupidly far out to begin with.


Pints

18,442 posts

158 months

Thursday 7th May 2009
quotequote all
It's out because your car is st and you're a crap driver wink

deviant

4,316 posts

174 months

Thursday 7th May 2009
quotequote all
If the speedo is electronically controlled you need a speedohealer (search for that on ebay or google).

I suspect though that its cable driven in which case I do not know of a product on the market to correct it...other than fitting the correct sized tyres.

wizzbilly

955 posts

157 months

Thursday 7th May 2009
quotequote all
i would also be intrested in finding somewhere that could sort this out as other halfs crappy saxo automatic speedo is out varios from 3-5mph .

the car is completly standard no bigger wheels etc am presuming its on a cable just wondering if it has stretched or something daft .

blueg33

26,102 posts

188 months

Thursday 7th May 2009
quotequote all
Do a web search on speedo repair. There are a couple of companies that re-calibrate speedos.


Mroad

821 posts

179 months

Thursday 7th May 2009
quotequote all
wizzbilly said:
i would also be intrested in finding somewhere that could sort this out as other halfs crappy saxo automatic speedo is out varios from 3-5mph .

the car is completly standard no bigger wheels etc am presuming its on a cable just wondering if it has stretched or something daft .
A speedo is allowed to read 10% over but never under the true road speed (with standard drivetrain).

Utterly Clueless

Original Poster:

1,981 posts

157 months

Thursday 7th May 2009
quotequote all
So am i right in saying no one knows where i would take my car to have the speedo recalibrated?

JJCW

2,449 posts

150 months

Thursday 7th May 2009
quotequote all
Can't you do the simple maths as you go along?

I know mine is ~5mph out with my tire change, so i just drive accordingly; knowing i can go just over 30mph and be withing legal limits.

ETA:
Also, by the general trend i'm seeing by reading your posts, you driving at ~5mph less than the speed limit may not be a bad idea for your and others safety.

Edited by JJCW on Thursday 7th May 15:41

madbadger

10,894 posts

208 months

Thursday 7th May 2009
quotequote all
Do it yourself with a GPS and a letraset or some stickers to reposition the numbers on the dial.

HellDiver

5,708 posts

146 months

Thursday 7th May 2009
quotequote all
Leave it 3 weeks, when your car is wrapped round the front of a 40-footer the speedo won't be important.

Eddh

4,656 posts

156 months

Thursday 7th May 2009
quotequote all
HellDiver said:
Leave it 3 weeks, when your car is wrapped round the front of a 40-footer the speedo won't be important.
But he wont be able to come on here and tell us at what speed he hit the lorry then.

Rockatansky

1,559 posts

151 months

Thursday 7th May 2009
quotequote all
Depending on what sort of car it is you may be able to use software tools to alter the speedo reading, or get a different geared drive for the cable perhaps.

This is who sort out speedos for plod, but I don't know if they deal with mere mortals wink

http://www.irs-gb.com/speedometers.ihtml

7ommy

299 posts

153 months

Thursday 7th May 2009
quotequote all
Just remember to get it adjusted as the tyres wear and then again when you fit new rubber

GingerWizard

4,721 posts

162 months

Thursday 7th May 2009
quotequote all
I'm liking "speedometer". Thats now stored in the memory banks......

Flanders.

6,148 posts

172 months

Thursday 7th May 2009
quotequote all
HellDiver said:
Leave it 3 weeks, when your car is wrapped round the front of a 40-footer the speedo won't be important.



hehe

aclivity

4,059 posts

152 months

Thursday 7th May 2009
quotequote all
GingerWizard said:
I'm liking "speedometer". Thats now stored in the memory banks......
?

Is that in case the dictionary fails?

GPT

2,742 posts

144 months

Thursday 7th May 2009
quotequote all
The cable driven speedo in your golf will have a cog on the end that spins another cog in the speedo, so changing that cog would affect the speed but I seriously doubt it would be worth the trouble.

As has been said, it's crap car that's not worth spending any money on (no offence). If you really can't do the maths as you drive along then why not buy a satnav or some other gps based speedo, or even put the proper wheels and tyres on. Maybe painting your callipers red will help?

moneymouth77

108 posts

143 months

Thursday 7th May 2009
quotequote all
I'd say stickers are your best solution, drive how you want mate just now how fast you are!