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I mainly use a +30 setting when I hit the dirt tracks. Reason being is it doesn’t lower over ~45kph so I maintain some extra clearance. From there when it gets rough I’m normally going slowly anyhow so then use the in cab raise.Quote:
Originally Posted by Mog60
DJ, so you make normal height plus 30 and that makes offroad plus 30 as well ?
I'm sure it's dead on 55kph where the car lowers[smilebigeye]. Gongs start from ~43kph if I remember correctly but it doesn't lower till 55kph.Quote:
Originally Posted by DiscoJeffster
Either way it's a PITA. Love using LLAMS to keep the extra clearance at higher speeds with no lowering and no gongs.
Lowering from off-road height occurs at real speed 50 kph when the speedo is reading about 54 (2%+3kph ex factory).
Yes, should have mentioned that …. speedo indicated with 255/55/19 tyres. I've checked multiple times in both my D4s and it's 55kph indicated every time …. but let's not split hairs … [bigrolf].Quote:
Originally Posted by Graeme
My GOEs with 285/60/18 make the indication closer to my GPS speed. But that level of accuracy changes over the speed range.
When in 'extended height' there is little wheel travel left in the up direction, topping out is very easily achieved which can't be good for the suspension.Quote:
Originally Posted by Mog60
If you place the vehicle into 'extended height' by dialling in +50mm with the Gap tool and selecting 'off road height' from within the cabin you have made a conscious decision to do so and so should be aware of problems and limitations when at speed of using that set up.
However, what some people don't realise (or remember) is that if you dial in +50mm at 'highway height' thinking that I'm really only at 'off road height' so all should be good but then select 'rock craw mode' then without being aware of things your vehicle will effectively enter 'extended height', perhaps without you realising it because 'off road height' is selected automatically when in rock crawl.
Normally if the vehicle enters 'extended height' there is a max speed limit of ~5kph applied. If that speed is exceeded the vehicle will drop out of 'extended height' for safety reasons (centre of gravity and suspension damage possibility) but when it enters 'extended height' by fudging things using the Gap tool then 5kph speed limitation no longer applies.
Long story short - be aware you can be in 'extended height' without being aware of it.
And extending the suspension creates a trade off in Centre of Gravity, articulation and traction .... you have to be aware of that and chose settings accordingly.
Lonerangie if you set up say 30mm of extra height then this will be at ALL speeds when normal road height is selected. If you select off road height you will now be raised 30 mm above your old off road height BUT this will lower at 50+ kph. You can make up any heights as you have three settings.
I have 265/65/18 tyres so oversized and have a 1st level setting at +25. So with the tyres it’s a nice lift that I don’t think will over stress the cv’s. But only when desirable.
In relation to extended mode (which your cannot select) I did trigger this inadvertently recently but it clearly told me on the dash at the time. It also had a red ! Mark. So short of not noticing the dash you do know you are in extended mode and you soon pop down.
Agree with all the other comments about higher COG so be sensible and selective when you apply changes and drive accordingly and you’ll be OK.