Verkline Full suspension set bundle - Toyota Supra A90 A91
- Regular price
- £5,529.54
- Regular price
-
- Sale price
- £5,529.54
- Unit price
- per
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- Rear Lightweight Tubular Subframe
- Front Caster Adjustable Control Arms
- Front Lower Adjustable Control Arms
- Front Bump Steer Adjustable Tie Rod Ends
- Front Sway Bar End Links
- Rear Adjustable Traction Links
- Rear Upper Adjustable Lateral Straight Links
- Rear Upper Adjustable Lateral Bent Links
- Rear Adjustable Toe Links with lockout kit
- Rear Spring Wishbone Bushings with lockout kit
- Rear Knuckle Bushings
- Rear Sway Bar End Links
- 66 printed pages of install and suspension setup instructions
As you can see, the Supra/Z4 bump steer has a significant impact on the toe during driving. When on alignment you will set your wheels to be toe in, it does not mean that in some circumstances, often difficult to predict you will be driving with rear toe out which is causing the rear end to be very lively. In daily low speeds it is not so bad, but on track usage or highways, it could be the cause of car major instability.
Another issue with that suspension (5 link especially) is that it has a lot of interdependencies between its properties. It makes it very complicated to modify its setup without deterioration of its kinematics. On the graph below you can find an example of how a change of camber (new alignment setup) by 0,5° can increase bump steer even more (green line – 0,5° increased camber, red line – stock camber setup).
If we would look again at an example of hard braking and rebound of rear suspension by 40mm, we are getting about -0,2° of toe out (pink dot on graph above) instead of -0,1° for stock setup (yellow dot on graph above).
In some cases like going fast over a crest you can have up to 80mm of rebound which in that case would give as much as -0,5° of toe out per wheel. This is -1° of total toe out! Such big change into toe out is giving relatively a huge chance of losing grip and control of the car.
Graphs above are coming from suspension kinematics software, where as an input we use suspension geometry which we gather from 3d scans of a real car. Simulation model was also validated by measurements of bump steer and camber gain on the real car. To do so, we put Supra on leveled jack stands, taken off suspension springs and disconnected the sway bars and then we have the ability to move wheels up and down with a small car jack. For measurements we have used strings, camber gauge tool and steel ruler. Measurements accuracy was about 0,05 degree for toe, 0,2 degree for camber and 1mm for suspension travel. Our measurements have shown good correlation between simulations and reality.
That is why to prevent such problems we have prepared 3 suspension setup presets (Track, Street, Drag) to provide the best possible performance out of the box, for an every type of driver. These 3 suspension setups developed by us consist of our basic alignment and ride height suggestions, and what is the most important, predefined lengths of every arm, to provide proper kinematics for every designated use of car.
On the graph below you can find a comparison of 2 previous shown bump steer curves (red and green lines) with a curve of our Street setup preset (yellow line).
As you can see, the bump steer curve of our setup provides much reduced bump steer to prevent toe out through all suspension travel. This will give you a stable handling without unpredictable dangerous situations, which were caused by sudden transitions from toe in to toe out.
Summarizing: VERKLINE goal in preparing that 3 setups presets is to improve stock Supra A9x/Z4 G29 and additionally prevent all issues which would occur due to modifying, e.g. camber or ride height to fit the car to a designated use. Our kits will include precise guide lines on how to setup the car using our wishbones and rear subframe.
Used in:
– Toyota Supra A90
– Toyota Supra A91
– BMW Z4 G29
Notice: Sold for off road, track and racing applications only. Mounting the bushing may increase some noise, vibration, and harshness (NVH) in the car. We strongly advice to mount the subframe in qualified and experienced workshop
What are the delivery methods and charges for UK, Europe and Rest of World (ROW)?
Regal Autosport uses a variety of shipping services to give the best combination of value, service and speed to our customers. This will vary on location, value of the time and size to name a few.
Regal Autosport may drop-ship directly from the manufacturer to the customer if the product is a non-stock item and this provides the best value and service. If this is the case, the delivery method may be different.
Shipping is calculated automatically at the checkout, depending on your location and the products ordered. On occasion, the shipping price may be incorrect due to your location or the product being oversized in dimension or weight. Whilst we try to be as accurate as possible with our shipping prices, from time to time they might be inaccurate. We will not know until we process your order if this is the case, we will contact you if this is the case and provide you with the option of cancelling or payment of the difference.
Due to the value of the products sold we only deliver to the verified address of any payment method OR any address if paid for by bank transfer. Thanks to scammers, we simply do not take the risk and any order which does not have a verified address will be cancelled.
Any customer with an order which has been damaged in transit must notify Regal Autosport immediately and within 14 calendar days of shipping. If this is not done, the shipping insurance cannot be used, and you will not be compensated.
United Kingdom Mainland
Within the United Kingdom Mainland, we use DPD Local. This service is a next working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day. A working day is Monday - Friday only.
Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day.
United Kingdom Non-Mainland
Within the United Kingdom Non-Mainland, we use DPD Local. This service is a next working day or 2 working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day or the second working day. A working day is Monday - Friday only.
Europe
For Europe, we use DHL. Your delivery location will determine the transit time. Orders in-stock and placed before 2PM will ship the same working day. A working day is Monday - Friday only.
Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then be able to track your order and see an estimated delivery date.
Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day.
Rest of World (ROW) & Oversize
For ROW and oversize items, we typically use DHL Express. Your delivery location will determine the transit time. Orders in-stock and placed before 2 PM will ship the same working day. A working day is Monday - Friday only.
Tracking is manually sent to your email address once your order has been processed for shipping. You will then be able to track your order and see an estimated delivery date.
Please note: The above is a general guide to how we plan to ship your order. From time to time this may change and we may decide to ship with other couriers.