myotherworld

myotherworld

Active Member
I have read that a few folks have changed there wheels and or tyres for smaller/larger.
can anyone tell me what if any effect this has on the speedo,
with the outside circumference changed how can it still read true?
 
The speedo reads slightly faster than actual anyway for "safety", so with standard tyres when the speedo is reading 30 you're actually doing something like 27.

My tyres are 215/70/16 and my speedo is now only a little bit above what my GPS shows.
 
Not sure but isnt it to the gearbox anyway and thus the gearbox still turns at the same speed? It was on some of my previous motors..
 
WLJayne said:
The speedo reads slightly faster than actual anyway for "safety", so with standard tyres when the speedo is reading 30 you're actually doing something like 27.

My tyres are 215/70/16 and my speedo is now only a little bit above what my GPS shows.
Click to expand...

:behindsofa:

I have a '02, TD4 with factory fitted 16" alloys and 215/65-16 tyres.
Like the post above my speedo reads approx 5 mph more than the speed indicated on my GPS....e.g. 70mph on the speedo is shown as 65mph on the GPS.
Thing is-which is correct ?????:confused:
 
My 225/75's have a 7% difference to standard, and my speedo now reads bang on to gps
 
myotherworld said:
I have read that a few folks have changed there wheels and or tyres for smaller/larger.
can anyone tell me what if any effect this has on the speedo,
with the outside circumference changed how can it still read true?
Click to expand...

it will change speedo reading by how much depends on difference from lrs nominal size
 
My speedo reads 34mph, the Scangauge 2 reads 30mph and the GPS about 29mph.....take your pick.

I'm running slightly smaller tyres-215/60 R16's.

The analogue speedo is quite a bit out compared to the digital readout on the Scangauge 2. Surprising or not, as I would expect it to use the same input......
 
You must log in or register to reply here.

Similar threads

Alibro
Freelander 1 Freelander 1 TD4 rpm at various speeds?
Replies
5
Views
763
Alibro
Alibro
P
Freelander 1 L-Series Bosch diesel ECU replacement process?
Replies
8
Views
243
pscan.eu
P
R
Series 3 Original tyre sizes?
Replies
6
Views
619
grewth
G
C
snapped speedo cable Disco 1
Replies
14
Views
814
Curly Oak
C
C
Freelander 2 (35-50mph) wobble/judder through car body
Replies
2
Views
1K
Madmustang
Madmustang