Based on the XB8 platform, XRAY have presented the 2017-spec XB8E which incorporates the latest improvements and refinements gathered by the team, race-proven in the highest competition races around the world. The XB8E is typical XRAY: premium, professional, high-competition for the most demanding racers, developed with attention to the smallest details, and backed by premium service & support…a luxury masterpiece.
The all-new, high-volume differentials were redesigned to increase diff reliability and performance. Differentials feature higher oil volume capacity cases, and all-new larger internal gears with more teeth for improved differential moment. The larger volume of the differential and the shape of the gear teeth reduce oil overheating. To increase reliability, diff pins have a new, stronger design. The new differentials give increased traction and reliability, especially in long runs.
Internal Diff Gears.
All-new internal diff gears were created to increase differential reliability and reduce diff oil overheating. The new 20T and 10T gears have a larger size and a greater number of teeth to ensure more precise fitment and engagement. Pressed-steel differential bevel and satellite gears are heat-treated and machined for superior precision and smooth operation.
Updated diff outdrives were created to accommodate the new stronger diff pins. The front longer diff outdrive adapters ensure that the drive shafts will not fall out in extreme crashes at full steering lock. To reduce rotating weight, the super-lightweight diff outdrives are machined from HUDY Spring Steel™ which allows unnecessary material to be removed to further reduce weight without affecting durability. The inner portions of the outdrives are additionally hand-ground for maximum precision and fitment into the diff case. All outdrives are hardened using HUDY’s own special hardening process for extended lifespan and reliability.
New trailing-axle steering blocks offer a significant handling improvement in all track conditions, making the car easier to drive and giving increased forward traction. The smart design of the steering block allows one steering block to be used either on left or right side for easy servicing. The steering blocks feature the following integrated geometry adjustments:
• bump steer
All-new steering plates change the front suspension geometry and thus change steering characteristics as well. The new updated geometry results into more linear and precise steering, making the XB8E more predictable and easier to drive.
To increase servo saver reliability, especially in dusty conditions, the all-new servo saver is moulded from new graphite material which is more resistant and efficient in dusty conditions. The dual-arm steering system is simple yet effective, featuring an integrated easily-adjustable servo saver and Swiss 7075 T6 aluminum steering plate. Ackermann is easily adjusted by quickly & easily changing steering link mounting positions on the steering plate. Bump steer is easily adjusted by inserting shims between the steering plate and steering linkage.
The front upper deck is now made of molded composite material to improve flex which results in increased traction and improved steering characteristics.
All-new longer rear arms make the car easier to drive in most track conditions. The new rear arms also give flex to help generate more traction and give better handling. All-new, narrower front lower arms move the arms more frontwards, resulting in improved weight balance. XB8E suspension arms are the result of long-term testing of different designs and layouts. Length, thickness, flexibility, geometry, and materials used… these are all part of the concepts and details that are thoroughly reviewed to create optimum suspension arms.
The suspension arm itself is rigid enough to provide a responsive feel, yet soft enough for extreme durability. The exclusive composite mixtures used for suspension arms offer a perfect balance between reliability & performance.
I.S.S.™ Suspension Holders.
To accommodate the longer rear suspension arms, narrower aluminum suspension holders are used. The aluminum suspension holders feature Integrated Suspension Settings™ (I.S.S.) which allows for quick & easy suspension geometry setting. Using eccentric suspension bushings inserted into aluminum suspension holders – as well as additional suspension shims – the XB8E suspension geometry can be completely adjusted in mere seconds.
An all-new, improved weight balance was created by moving the front lower suspension arms more frontwards. This new weight balance makes the car easier to drive, increases predictability, makes the car extremely resistant in rough parts of the tracks, and gives great handling in jumps and fast parts of the track.