Hi,

Just wondering what rear ARBs are available for this car? Ive seen the Whiteline item on DPM, but are the others such as Eibach worth considering? Would prefer an adjustable one if possible.

Thanks

I have tended to stick with Whiteline (following good experiences with their products on Subarus). The Whiteline RARB is reasonably priced, dead easy to install and adjustable. I have mine on the middle position - on the hardest its a little too easy to induce oversteer for my taste.

I also have the Whiteline Anti-Lift Kit, which tends to improve front end grip and sharpens up steering inputs - works well with their RARB. Again, pretty easy to fit if you have some workshop experience.

Anyhow, you are local to me so if you want to look at these products installed on the car then send me a PM.

As mentioned the Whiteline rear ARB is a great addition and a very cost effective modification. It's also one of the only bars available as a rear alone and not in a front and rear kit.

Damian @ DPM Performance

Will the car's wheel geometry need resetting after a rear ARB fitted to the car?

Will the car's wheel geometry need resetting after a rear ARB fitted to the car?

No, the geometry is not changed at all, the RARB merely increases the roll stiffness at the rear of the car. You will notice that there is a little less body roll and a little less understeer. Because there is increased transverse suspension coupling at the rear of the car the ride will also become a little more 'restless' at the back.

there are loads of bars avauilable to you.

but you need to consider how you want your car to handle. If you not shy of a bit of oversteer fun, and would prefer a more neutral handling car id say go with a front and rear upgrade.

Before i stripped my car back to stock i ran setup as follows.

Eibach front ARB set to soft

eibach rear ARB set to stiff

whiteline Anti lift kit

AP coilovers

the handling was very predictable, understeer was hugely reduced, and the car had oodles of grip in the bends as well as great traction. In comparison to now, i can not put on the power exiting a corner till much much later. :'( .

If i were to do all o this again, whcih i wil on a mk5 chassis of some sort. Maybe even on the same car if i decide to keep it ths is the setup i would run.

Whiteline front ARB (as these are the only company you can uy them individually with)

BSH 27mm rear Arb

Whiteline anti lift kit

Audi TT lower control arms

I prefer a little oversteer bias in the car as you can pint the nose of the car into the corner better,

is the petrol the same as the diesel anyone no

is the petrol the same as the diesel anyone no

yes it is. however the diesel is slightly more prone to understeer as the engine is heavier. So they respond well to a slightly bigger rear bar than what you would go for on the petrol.

yes it is. however the diesel is slightly more prone to understeer as the engine is heavier. So they respond well to a slightly bigger rear bar than what you would go for on the petrol.

do you have a link to this rarb as iam thinking of getting one of these-thanks

which one the BSH 27mm

uk BSH dealer here

http://dubtek.co.uk/index.php?main_page=product_info&cPath=22&products_id=263

or from the US of A

http://www.bshspeedshop.com/store/home.php?cat=390

what about this will this fit

http://cgi.ebay.co.uk/VW-Golf-Mk5-Audi-A3-8P-Whiteline-Rear-ARB-/260602243659?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3cad1aaa4b

this is only around the corner from me aswell

what about this will this fit

http://cgi.ebay.co.uk/VW-Golf-Mk5-Audi-A3-8P-Whiteline-Rear-ARB-/260602243659?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3cad1aaa4b

this is only around the corner from me aswell

yes it would. When i put on my eibachs i sold off my std ARBS. and am now running the Std Rear ARB from a mk2 Audi S3. so that would definately fit.

yes it would. When i put on my eibachs i sold off my std ARBS. and am now running the Std Rear ARB from a mk2 Audi S3. so that would definately fit.

what about the 24mm is that thick enough or can you get thicker-sorry for the dumb questions

what about the 24mm is that thick enough or can you get thicker-sorry for the dumb questions

its not just about the thickness its all about the stiffness of the construction.

http://www.balancemotorsport.co.uk/sitepage/Whiteline.html

Std bar is 21mm iirc. so from the above link it looks like it would be 71% stiffer, not sure if that takes account just the medium stifness or the maximum though

The diameter of the bar is pretty much irrelevant unless you know whether it is of solid or tubular construction, and the shear modulus of the steel used. Comparing diameters between brands or from OE to aftermarket is meaningless because there are too many variables.

As with many things on cars, too much of something can be bad, and that applies to ARB's. If there is too much roll stiffness then you will actually reduce traction and the inside wheel will lift off in a corner. Moreover, as you add roll stiffness each suspension unit becomes less and less independent and on bumpy roads the tyres spend more time not in contact with the road surface. There is definitely a limit to how much roll stiffness you want. Remember, what might work well on a smooth track surface could be lethal on a bumpy and twisting country lane.

Whatever mods you do, make sure you do them one step at a time and err on the side of caution. Throwing parts onto a car without really knowing what you are doing and having a proper understanding of chassis dynamics can lead to the thing to one day unexpectedly swapping ends on a damp corner.

The diameter of the bar is pretty much irrelevant unless you know whether it is of solid or tubular construction, and the shear modulus of the steel used. Comparing diameters between brands or from OE to aftermarket is meaningless because there are too many variables.

As with many things on cars, too much of something can be bad, and that applies to ARB's. If there is too much roll stiffness then you will actually reduce traction and the inside wheel will lift off in a corner. Moreover, as you add roll stiffness each suspension unit becomes less and less independent and on bumpy roads the tyres spend more time not in contact with the road surface. There is definitely a limit to how much roll stiffness you want. Remember, what might work well on a smooth track surface could be lethal on a bumpy and twisting country lane.

Whatever mods you do, make sure you do them one step at a time and err on the side of caution. Throwing parts onto a car without really knowing what you are doing and having a proper understanding of chassis dynamics can lead to the thing to one day unexpectedly swapping ends on a damp corner.

couldnt put that better myself.

keep in mind though, that all of these ARBs have been designed and specced for use on a Mk5 GTI which suffers less body roll and th vRS has a heavier back end. so IMO you could use a slightly stiffer rear bar on a vRS as a pose to the GTI.

After the eibachs id definately want a stiffer rear next time round, as it suits my driving style more. However if you are no used oversteer and o your wife drives the car then that might not be the best idea, and it would make sense to go for a complete set of front and rear bars to keep the neutral balance of the car

I would say the Whiteline ARB is the best value for money

I have been thinking about getting one ever since I bought my Octy 2 CR VRS

But at my local tuning store the Neuspeed one has risen from £125 + vat to a whopping £214 + vat in JUST 18 months - seems a bit cheeky to me

do you have a link to this rarb as iam thinking of getting one of these-thanks

http://www.dpmperformance.co.uk/whiteline-24mm-rear-anti-roll-bar-adjustable-versionbr-octavia-1z-14-16-19tdi-20fsi-rs-20t-fsi-20tdi-rs-20tdi-fwd-0504-p-4171.html

Damian @ DPM Performance

Step by step guide to fitting a Whiteline here

http://briskoda.net/forums/topic/152785-fitting-a-new-rear-anti-roll-bar-on-a5-chassis/