Thread: MOAB Rims

Hi Scott,

Great trip. Well done and thank you for the posts.
I am glad the Nittos worked well on your TuffAnt 18" alloy rims.
I am trying to learn about the tyre options for my D4, for a Central Australian trip i am planning next winter and thinking that this Nitto may be a good option, once I buy the TuffAnt 18"s
Spare tyre space is not a concern, as I have a twin wheel carrier. The fuel tank was changed to long range by the previous owner.

The TireSize.com website lists the Nitto LT 265/65/R18 as running at 654 revs to the mile.
The OEM D4 tyres 255/55/R19 run 672 revs per mile.
If I am correct and i may well not be, 654/672 means the speedo would read 2.7% slower with the Nittos. eg 100 kmph when the vehicle is actually running at 103 kmph.

Could a tool like the IID Gap tool be used to reset this discrepancy or do you simply allow for the difference as you read the speedo?
Thank you and best wishes,
Jeff

Jeff

From memory the D4 speedo reads low so you should be ok

D5 with 275 55 20's read 103 when doing actual 100.

So Landrover speedo's seem to read consistently low.

Checked with both GPS speedo app on phone and speed checker on Geelong Rd

The usual "as built" speedo setting for our market is set at 3.5% below actual and at +2kph.
Although each of these parameters has a number of settings, it appears as if there are only two main market settings. In Genesis, this is displayed under Jaguar Speedometer Calibration Market which can be found under the Warnings and Messages tab. The choices are:
Market 0: 3.5% + 2kph
Market 1: 2.0% + 0kph
Accordingly, if "as built" setting is Market 0, then the following parameters are also factory set:
Jaguar KPH Offset: +2kph
Jaguar Percentage Scaling Factor: 3.5%


For my vehicle I changed all three settings as follows:
Market 1: 2.0% + 0kph
Jaguar KPH Offset: 0kph
Jaguar Percentage Scaling Factor: 2%
This gives a spot on speedo on 19” 255/55/19 and 18” 265/60/18

Diesel LSE

So does that mean in market 0 it would be 5.5km/h at 100 kmh

If so that would have been my estimate of being 6 km/h out on standard tyres.

Thanks for the info

Originally Posted by chuck

Diesel LSE

So does that mean in market 0 it would be 5.5km/h at 100 kmh

If so that would have been my estimate of being 6 km/h out on standard tyres.

Thanks for the info

I’m 106kph on the dash for 100kph actual (gps) on standard configuration and standard wheels and tyres.

Originally Posted by DiscoJeffster

I’m 106kph on the dash for 100kph actual (gps) on standard configuration and standard wheels and tyres.

Same here, which works out as Market 0 standard doesn't it?

100km/hr, plus 3.5% would show 103.5km/hr
plus 2km/hr = 105.5km/hr. Rounding to the nearest whole number = 106km/hr

I’ve not used the Gap iiD to reset settings as described above because I’ve gotten used to actual versus speedo. What I’ve noticed is:
265/60/R18 was around 103/104 for 100 actual
265/65/R18 is pretty close to reading true

Cheers,
Scott

Originally Posted by chuck

Diesel LSE

So does that mean in market 0 it would be 5.5km/h at 100 kmh
Thanks for the info

I think it must be something like that as the Jeffster and veebs have observed.