Mud-club

Vehicle & Technical => Defender => Topic started by: gt.jacko on April 17, 2007, 22:22:30

Title: speedo inacurate
Post by: gt.jacko on April 17, 2007, 22:22:30

Hi I have just about finished a total rebuild of my 90 it,s running a 200tdi with a 1:22 ratio transfer box and 265/75x16 bfg muds, anyone any idea what speedo drive gear I might need it appears to be reading too low at the moment.

Cheers
         Gaz

Title: speedo inacurate
Post by: Litch on April 19, 2007, 08:45:11

I run a Disco transfer-box & 265/75 X16 BFG AT's with the blue drive-gear on my 90 and my speedo reads as follows:-

Ind 30MPH = 28MPH on GPS
Ind 55 MPH = 53MPH on GPS
Ind 75MPH = 72MPH on GPS.

Also around here we have those illuminated boards which tell you your speed as you drive towards them and they bare out these figures.

Title: speedo inacurate
Post by: ken110 on April 19, 2007, 09:24:23

mine runs the other way. 200TDI with a 1:2 transferbox
30mph = 35 on GPS
50mph = 58 on GPS
65mph = 74 on GPS

before I had GPS i was happily pootling around at 70 thinking i was totaly above board...dread to think ho fast it was actually going when on the odd occasion i actually got 80 (private road) :shock: