RRS Ground Clearance

[101RRS]

In the L322 section they have indicated that off road clearance of the RR, RRS and D3/D4 is as follows

Range Rover Vogue off road height clearance - 283mm
D4 off road height clearance - 310mm
Range Rover Sport off road height clearance - 227mm

The 227mm for the RRS seems low as it is a D3/D4 underneath but I have confirmed this in the brochures - is this a misprint? I guess not.

So does anyone know if the RRS offroad height clearance can be modified to that of the D3/D4 and what is required.

Thanks

Garry

[rrturboD]

Garry,
At the LRExpo this year Bruce Davis had an electronic box that could be used to change the 'standard' heights for the RRS, D3 & D4.

[DiscoWeb]

Check out this thread which relates to a guy on the forum who seems to have developed a controller that allows different heights to be set and effectively "off road" height to be maintained above the 50kph.

http://www.aulro.com/afvb/verandah/114282-llams-electronic-height-controller-d3-d4-rrs.html

i believe it is being distributed via Bruce Davis.

George

[101RRS]

Thanks guys but that is not the issue. That system allows you to select various height settings within the design parameters of the vehicle.

The issue I have is that a RRS on its offroad setting is a full 83mm lower than a D3/D4 and they are supposedly the same vehicle underneath. So logically a RRS should be able to get to 310mm when offroad.

With only 227mm, a RRS will not be able to go many more places than my old Freelander will go if ground clearance is a limiting factor.

Cheers

Garry

[discojools]

As far as I know the offroad height of the RRS is only slightly less than the D3/4 due to slightly smaller tyres. Having both an RRS and D3 I can vouch for that.

[CaverD3]

The RRS has different suspension geometry which probably accounts for the difference in height. The ramp over angle is about the same as the RRS has a shorter wheelbase.
If you wish to raise the height in all settings you could install shorter suspension rods but that would compromise the on road handling.

[Graeme]

Maybe 227 should be 272, which accounts for the tyre size difference.

[Graeme]

With a Llams unit, the vehicle could be jacked-up front and rear at calibration time when at off-road height to provide a higher Llams off-road setting. How high would you like off-road height?:D Normal height would not be affected.

[101RRS]

With a Llams unit, the vehicle could be jacked-up front and rear at calibration time when at off-road height to provide a higher Llams off-road setting. How high would you like off-road height?:D Normal height would not be affected.

Yes but the maximum you can ever go is 227mm (as that is the max built in available height) not anywhere near the Disco 310 mm. No amount of tricking it will make it go higher as it is a physical limitation. To me 227mm is just too low for any serious offroading.

Will D3 airbags etc give better ground clearance as I though the suspension geometry was the same as a D3.

Garry

[CaverD3]

If 227 is the off road height it is not the physical limit. There is still extended mode and super extended mode. On the D3 there is not a lot beyond that, don't know about the RRS.
We put the air actuator system on a RRS which gave it 35mm extra lift.
The Llams system would be similar but Graham would know what happens with the RRS.

I think you will find some serious off roading is done with a RRS straight out of the box.

[Leo]

With the same tyres at a D3, the RRS has exactly the same clearance (I've checked).

LR websites are not that accurate in some things e.g. the LR South Africa website has different figures for ground clearance than the Australian one, which is (or was) different to the UK/Global site etc.

[Graeme]

LR websites are not that accurate in some things
It was only about 18 months ago that the Oz LR web-site stated that 5 gears could be manually selected on the D3 auto gbox.

[DiscoWeb]

Thanks guys but that is not the issue. That system allows you to select various height settings within the design parameters of the vehicle.

The issue I have is that a RRS on its offroad setting is a full 83mm lower than a D3/D4 and they are supposedly the same vehicle underneath. So logically a RRS should be able to get to 310mm when offroad.

With only 227mm, a RRS will not be able to go many more places than my old Freelander will go if ground clearance is a limiting factor.

Cheers

Garry

Garry,

I am sure gghaggis will be along shortly to give you first hand advise but check out his green oval experience website as it has some footage of the RRS in action and I would be pretty confident it will go more paces than the FL2.

Regardless it would be handy inf LR published the right information about ground clearance of their vehicles and I would be surprised if there was that much difference between the RRS and D3/D4 on similar rubber, because I understood them to be basically the same or very similar.

George

[Graeme]

Without suggesting that the RRS does have a lower off-road height which has been rebuffed anyway, it could be easily obtained using different shocks with shorter extended lengths, lower spring seats and different suspension ecu parameters even though the wishbones and other suspension parts might be the same. There are minor dimensional differences between the MY09 D3 and D4 shocks yet their mountings are indentical.

[gghaggis]

The std off-road clearance for a D3/D4 is approx 240mm. For the RRS it is 225mm. For the RR Vogue it is 280mm. These figures are averaged from a number of vehicles of each make.

The "310mm" figure is the maximum height you can attain with a D3/4 (emergency extended height). It's a marketing ploy by LR to quote this figure for the Discovery. Apparently RRS owners don't care :mad:

The difference between the RRS and D4 is only some 15mm, most of that is due to the slightly smaller tyres fitted as std (12mm less radius). If you fit the same tyres as the Disco, you basically have the same height and a better ramp-over angle due to the shorter wheelbase. This makes the RRS slightly more maneuverable off-road than the Disco.

And it will _definitely_ go places an FL2 won't :D

Cheers,

Gordon

[101RRS]

Garry,

I am sure gghaggis will be along shortly to give you first hand advise but check out his green oval experience website as it has some footage of the RRS in action and I would be pretty confident it will go more paces than the FL2.

Regardless it would be handy inf LR published the right information about ground clearance of their vehicles and I would be surprised if there was that much difference between the RRS and D3/D4 on similar rubber, because I understood them to be basically the same or very similar.

George

Thanks - hence my query - I would expect all the air suspended Land Rover products to have similar settings and clearances. I have the D3/RRS brochures and they all indicate that the RRS sport is lower - as does all the reviews I have read online - but they most likely use the the brochure figures.

I am glad people with first hand experience are placing comments and it is indicating that Land Rover has not listed the "extreme" offroad lift settings in their specification.

I am looking at a RRS as my everyday drive and for long distance outback type trips with others, so I want a vehicle that has the ground clearance if needed and onroad speed. For difficult fun, solo long trips or trips with older vehicles I would use my 101 which does not have the speed to get to distance locations but the clearance (285mm under the diffs - maybe 300mm if they are shaved).

Cheers

Garry

[101RRS]

The std off-road clearance for a D3/D4 is approx 240mm. For the RRS it is 225mm. For the RR Vogue it is 280mm. These figures are averaged from a number of vehicles of each make.

The "310mm" figure is the maximum height you can attain with a D3/4 (emergency extended height). It's a marketing ploy by LR to quote this figure for the Discovery. Apparently RRS owners don't care :mad:

The difference between the RRS and D4 is only some 15mm, most of that is due to the slightly smaller tyres fitted as std (12mm less radius). If you fit the same tyres as the Disco, you basically have the same height and a better ramp-over angle due to the shorter wheelbase. This makes the RRS slightly more maneuverable off-road than the Disco.

And it will _definitely_ go places an FL2 won't :D

Cheers,

Gordon

Thanks Gordon,

So on emergency height you should get about 290mm height. As I said I was just going by published specs which does make things a bit hard to judge. Not worried about going placed that a FL2 wont as I don't have a FL2 - however my FL1 has 210mm and if I put some better springs in it about the same as the RRS. I have to be particularly careful where I choose to go in it where ground clearance is concerned and I do not want to be restricted in a similar manner.

So I can assume that the Land Rover brochures are not showing all the specs of the RRS.


Cheers

Garry

[gghaggis]

Hi Gary,

The emergency height is about the same as the Disco (310mm) if you have the same tyres on both. If you're looking at getting out of the city, I'd advise getting better tyres, as the std RRS has very low profile ones fitted. I'd also suggest fitting one of my compressor protection plates. With that on, there's very little you can damage under the car. And you'll find the traction truly enormous ;)

Cheers,

Gordon

[101RRS]

Thanks Gordon - I am satisfied that the height listed in the specs is the offroad height and that the emergency height is similar to other landies.

Just got to find the right vehicle, there is one I am keen on but the seller will not negotiate on price.

Yes tyres and mods will be on the research list - chipping, mitch hitch and if I think necessary a Llams type system to stop the offroad height dropping when over whatever speed it is.

Lets not get ahead of myself as I need to find a suitable vehicle first.

Cheers

Garry