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flight

Member Since: 24 Jan 2008
Location: London
Posts: 186

2006 Range Rover Sport TDV6 HSE Java Black

Accuracy of speedo

How accurate ate the range rover sport 2006 model speedo's? My speedo never matches the speed of my speed camera detecter...

Sat Jul 23 2011 2:40pm

Siberianfox

Member Since: 12 Mar 2011
Location: West Yorkshire
Posts: 1495

2011 Range Rover Sport 3.0 TDV6 HSE Siberian Silver

It will never give you a true reading unless you have it calibrated also what size tyres do you have it on ? WHen I borrowed Ady555 road angel it was 2mph out on mine.

Sat Jul 23 2011 3:16pm

mse

Member Since: 08 Mar 2011
Location: Warwickshire
Posts: 2916

by law your speedo cannot under read eg when you are doing 30 actual it cannot tell you your indicated speed is 29.9.

So to ensure they dont, they all over read by design - so when you are doing 30 actual your indicated speed might be 32mph

by what margin you actual speed and indicated speed differs depends, but it will be in your favour in std set up

Before someone mentions GPS speed - these are also not accurate in most consumer models - yes they are more accurate than your speedo in the majority of cases (less each technologic development year) but still not accurate; due to various ways a gps works...professional GPS's are a different story Mike

2014 Facelift Discovery

Sat Jul 23 2011 6:37pm

Ady 555
Site Moderator

Member Since: 12 Dec 2010
Location: Good old yorkshire
Posts: 8738

2012 Range Rover Sport SDV6 HSE Santorini Black

My road angel vantage is spot on with a few roadside digital speed checks, also a police roadside radar gun and is spot on with my speedo with 285/35/22" wheels and tyre combo, so i'm very confident my speed is correct

Sat Jul 23 2011 7:32pm

mse

Member Since: 08 Mar 2011
Location: Warwickshire
Posts: 2916

Ady 555 wrote:
My road angel vantage is spot on with a few roadside digital speed checks, also a police roadside radar gun and is spot on with my speedo with 285/35/22" wheels and tyre combo, so i'm very confident my speed is correct

I would be very surprise at that none of our 4 current cars, 4 GPS's are - nor to my portable aviation GPS - which is more accurate than all of the prior.

What you might fine is you 22" wheels have removed some of the inbuilt error, so your actual speed is now similar to your indicated speed...which is you think sensibly isnt the thing you want; as your margin for error is decreased. Mike

2014 Facelift Discovery

Sat Jul 23 2011 8:26pm

Ady 555
Site Moderator

Member Since: 12 Dec 2010
Location: Good old yorkshire
Posts: 8738

Yes you are probably right, i only ever use my road angel as my speedo which is easier to see where ive positioned it on my dash

Sun Jul 24 2011 11:34am

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