There has been written a fair lot about the dreaded Active antirollbar system on the RR Sport...
I was thinking of replacing the entire system with standard solid sway bars from the Discovery 4.
In theory, this should fit onto an L320 RR Sport, as the chassis components seem to be the same.

Apparently there are two dynamic versions available. One being only the front axle, and the second version, where the front and rear axle are exquipped with a hydraulic sway bar. (TDV8 and Supercharged?)

Has anyone performed this action before? And more interesting question I have, has anyone tried to emulate the sensor data, so the dreaded red light on the dashboard would not appear?

I assume there will be a number of pressure sensors, which have to operate withn certain values. Does anyone know where these sensors would be located and, what sensor data they would receive during dormal driving conditions?

Apparently there is no software package available which resolves this. The only proof that it should be feasible is the Bowler EXR-S, which is based on the RR Sport and hasn't got this system (but uses the RR Sport ECU/ BECM modules).

Swapping the bars out should be straight forward enough, as would removing the old redundant piping. You would need a either a shorter serpentine belt or idler pulley to replace the ACE pump.

You won't need to emulate any sensor data/signals as you simply tell the system that ACE isn't installed.

I'll be attempting this with my TDV8 Disco 3

Hello,

I managed to reroute the serpentine belt, without the ACE pump inline.
It merely uses a shorter belt. That was the easy part.

I'm curious about the software solution to shut off the ACE system. My local Landrover specialist said it wasn't possible?
What system can be used to deselect the ACE option? Does anyone perhaps have a screenshot? (ROVACOM/TESTBOOK or equivalent).

I got a used front sway bar and measured it and seems to fit without any problems, just a little of work. The rear bar seems to be a bit more work, as you need to lift the body slightly. The official way would be body off, but it should be possible to loosen the body bolts and gently lift the rear of the body. By this means there should be enough clearance to get the bar out.

This will also enable me to remove the dead weight counter weight parts on the back of the car.
Still thinking of pursuing it further from there... I have a Bowler EXR-S Rollcage lying around

The counter weights are needed. Don't remove them

Why would you bother doing all of this? The RRS is supposed to be a better road-handling vehicle than the Disco. The DR bars also make for better off road ability than the solid bars - the system effectively behaves as if there are no bars when off road. It has its flaws but the pluses massively outweigh the minuses. By the time you've done all of this, made the vehicle a poorly performing example and worthless at resale, you may as well just replace a worn bar and have all of the benefits.

Bizarre.  2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

I find the DR promotes a lot of understeer...

Can't say I've noticed lots of understeer in over 100k miles with my TDV8.

I'd be interested to see what the large lump of the TDV8 motor does to handling with solid bars designed for the lighter TDV6, however. I reckon it'll wallow like a pig in mud. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Lsv wrote:

Apparently there are two dynamic versions available. One being only the front axle, and the second version, where the front and rear axle are exquipped with a hydraulic sway bar. (TDV8 and Supercharged?)

Lsv wrote:

Hello,

Still thinking of pursuing it further from there... I have a Bowler EXR-S Rollcage lying around

Is the DR set-up on TDv8 the same as the one that was on 2.7TDv6 HSE's fitted with the optional DR - this option also included the heavy duty steering rack that allowed you to run 20" wheels in the early days of RRS? 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

RRSTDV8 wrote:

Can't say I've noticed lots of understeer in over 100k miles with my TDV8.

I'd be interested to see what the large lump of the TDV8 motor does to handling with solid bars designed for the lighter TDV6, however. I reckon it'll wallow like a pig in mud.

Not allowing for body roll, my D3 feels absolutely planted, and can hustle a good few hot hatches through the twisties

No idea what an extra 120kg over the front axle will do though...

DM Have you fitted the TDV8 yet into your D3? as i Cant wait to hear what thats like! RRS Autobiography SDV6 19
Tesla model 3 long range SOLD!
BMW f15 X5 m50d SOLD!
Disco 5 HSE Lux SOLD!
Evoque Dynamic Lux. SOLD!
RRS HST Sold!
Other gonners, Disco 3, BMW 525d E60, Jag 2.2d X-Type, Merc E240, Audi A4, Peugeot 306, VW Golf GTI 1.8T mk4,Toyota Hilux, Mazda 323f, Escort 1.3!

I found the 2.7 very understeery and unwieldy, the tdv8 with the DR is a lot more planted. It has undersreered once, on a patch of diesel on a roundabout, at which point I was very grateful to the stability!

I would expect to be able to disable the DR in the car config with iidtool. As above, I wouldn't want to!

Tim in Scotland wrote:

Is the DR set-up on TDv8 the same as the one that was on 2.7TDv6 HSE's fitted with the optional DR - this option also included the heavy duty steering rack that allowed you to run 20" wheels in the early days of RRS?