Ever wonder how the Volkswagen Racing Cup cars find the front negative camber, additional caster and geometry control that is so vital on-track? It’s the VWR ‘Cup Edition’ Front Suspension Upgrade Kit.
The ‘Cup Edition’ Front Suspension Upgrade Kit is a race-proven package of upgraded lower arms, ball joints and replacement motorsport-specification bushes. This is exactly the kit that our Cup Race Cars use, and will transform the handling and steering feedback on your car.
Together, the fitment of the ‘Cup Edition’ Front Suspension Upgrade Kit will allow you to adjust in an additional static negative camber to the front wheels, together with extra castor given by the offset front control arm rear bushes. Plus it provides a 44% unsprung weight-saving from the cast steel original arms.
The difference? You will instantly feel your car responding with a new-found crispness and precision during cornering.
KEY TECH SPECS:
The kit comes with:
/// Supaloy Lightweight High-Stress front control arms
/// Roll-Centre Adjusting Lower Ball Joint Kit
/// Uprated Poly Motorsport Bushings
The front control arms are 44% lighter than standard cast steel arms, and considerably stiffer, reducing flex under load.
Add an range of 0.5 to 1.0 degree of static negative camber to front wheels via slotted lower control arms. Added 1.0 degree of castor from the offset front control arm rear bushes.
Black, ‘motorsport spec’ polyurethane replacement bush materials ensure maximum geometry control and driver feedback.
ROLL CENTRE CORRECTION
The Lower Ball Joints supplied with the kit have a longer pin which provides some roll-centre correction on a lowered car by dropping the angle of the lower arm back down to close to optimum.
Noticeably more front-end grip and improved driver feedback. Combine VWR suspension modifications such as the VWR Coilover Suspension, Top Mounts or Anti-Roll bars, for a transformative effect.
/// The MacPherson strut front suspension layout on the VWG ‘A5’ platform cars is a popular choice for manufacturers, due to its simplicity and low manufacturing cost, the standard design has a few disadvantages when it comes to high-performance applications.
/// Firstly, there is almost zero freedom to adjust static camber, caster or roll-center geometry – which as we know from our race programme is absolutely critical for handling on the VWG A5-platform cars.
/// The original soft factory rubber bushing allows the lower arms to move significantly in both the longitudinal and torsional axes in a high-performance environment. Whether over bumps, compressions, accelerating or braking this movement is highly undesirable for steering response and geometry control on track.
/// The other drawback for high-performance use is that as this layout tends to transmit noise and vibration from the road directly into the body shell, manufacturers have to add extra noise reduction and isolation mechanisms. In other words, plenty of movement in the original factory soft rubber bushing controlling the lower control arm.
/// These are the reasons that we have developed the 'Cup Edition' Suspension Upgrades for our race and track cars - to add in geometric control, reduce the unwanted 'squidge', and allow some adjustment.
/// The option to add in negative camber has a transformative effect on-track on these cars, adding very significantly to the front-end grip on turn-in and through the corner. The added front grip then allows you to adjust your rear suspension geometry (which is a relatively easy adjustment on the A5-platform) to optimise the balance of the car to your style. It’s no coincidence that this is the exact set up that our Cup cars use.
/// Uniquely for this product, the additional caster angle provided by the offset rear control arm bush gives enhanced self-centering action to the steering and thus greater feedback, resistance and stability.
/// This is a particularly good upgrade for a car that has covered higher miles/kms, as the original rubber bushes will have deteriorated significantly with age and use. This kit really brings back the ‘new car’ feel.
/// You will instantly feel your car responding with a new-found crispness and precision during cornering.
/// This transformation does come at a small trade off against ride comfort with the stiffer bushes, but careful design of the bushing materials means that this is achieved without excessive transmission of any excess noise, vibration and harshness (NVH) into the cabin. We have many customers who use the Cup Edition Suspension Kit on their daily-driven cars.
/// Please note that increasing negative camber will have an effect on tyre wear if the car is used predominantly on road. The flip side of this is that when used on track it will promote a more even tyre-wear pattern as the wear is spread across the tread much more evenly.
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