XRAY X8
The X8 platform is an electric powered 4WD pan car with a solid rear axle and front one-way axle. It is a pure luxury racing chassis where every detail is carefully designed for the maximum performance possible on the track.
Heritage.
This project is realized on the basis of many years of experience within the 1/8 on-road category, and was designed by Dipl. Eng. Juraj Hudy himself.
Passion.
The X8 is designed with the mindset of ease-of-use and simplified setup. But most importantly, being easy to drive. All of these requirements were fulfilled thanks to its concept, where all chassis components work in perfect symphony on the chassis.
The ultimate expression of racing passion. The art of performance. X8.
Premium.
With XRAY's uncompromising design philosophy bringing everything together to make the best, the X8 has the unique XRAY character, born of precision craftsmanship, highest attention to detail, and using only the finest quality materials.
Exclusive.
To create the X8 only the finest & premium materials have been used including high grade Swiss 7075 T6 aluminum, exclusive HUDY Spring Steel™, premium USA made carbon fiber materials, German made one-way bearings and XRAY’s self-developed & formulated composite compounds mixed from exclusive European composites.
Made in Europe.
Designed, developed, and fully manufactured in-house at the XRAY factory in Slovakia, Europe, using the most high-tech German and Swiss machines and premium European materials, crafted with XRAY's trademark attention to detail by our production specialists. The X8 is truly a masterpiece.
Main Features.
- Unique sandwich chassis design provides longitudinal reinforcement of the lower chassis plate with the top mounted battery tray
- Battery tray and lower chassis work together in a uniform flex system
- Chassis designed for optimal rigidity and flexibility
- Strategically placed chassis cutouts improve motor & battery cooling
- Front graphite suspension plate is mounted to chassis via pivot balls
- Front suspension allows for precise adjustments of the geometry via pivot balls
- Front caster is quickly & easily adjustable over a wide range
- Front suspension connects to battery tray for additional flex adjustments
- An O-ring flex system in the front suspension allows for tuning of the car’s steering characteristics
- Lightweight aluminium rear solid axle features a well-proven quick-release wheel system
- Hard coated front axle features German made front one-way bearing
- HUDY Spring Steel™ front CVD axles for a reliable and chatter-free driveline
- Well-proven composite front steering blocks from the RX8 platform
- Ackermann settings are quickly adjustable over a wide range using the different servo saver positions
- Fully adjustable servo saver both in terms of spring tension and Ackermann positions
- Graphite servo mount plate is independent from the main chassis for precise handling & control
- Drivetrain features drilled out & lightened Swiss 7075 T6 aluminium hard-coated self-cleaning & long-lasting pulleys
- Oversized pulley covers are designed to keep the belt in place at all times
- Multiple flanged bearing system for belt tensioning allows for a smooth & reliable drivetrain
- Superior pulleys & the belt tensioning system require less belt tension to allow for more chassis flex
- Floating battery holder system on rear aluminum bulkheads ensure precise mounting which doesn’t impact chassis flex, and quick battery installation & removal
- Compatible with both shorty- and standard size battery packs
- Multiple electronic installation options for optimized weight balance depending on battery type
- Well-proven and super durable RX8 front composite bumper with eccentric posts for different body shell positions
- Rear graphite bumper protects rear end and chassis
- High quality, lightly oiled bearings are included throughout
Chassis.
The X8 features a unique sandwich chassis design with a top mounted battery tray that provides longitudinal reinforcement of the lower chassis plate. The battery tray and lower chassis plate work together in a uniform flex system.
The chassis features strategically placed cutouts for improved flex characteristics, as well as for improved motor & battery cooling.
The X8 chassis has been designed for optimal rigidity and flexibility.
The lightweight, and very durable chassis machined from premium high-quality 3.0mm graphite material.
The X8 features a unique sandwich chassis design with a top mounted battery tray that provides longitudinal reinforcement of the lower chassis plate. The battery tray and lower chassis plate work together in a uniform flex system.
The chassis features strategically placed cutouts for improved flex characteristics, as well as for improved motor & battery cooling.
The X8 chassis has been designed for optimal rigidity and flexibility.
The lightweight, and very durable chassis machined from premium high-quality 3.0mm graphite material.
Battery Tray.
The unique battery tray system of the X8 works together with the lower chassis plate in a uniform flex system.
The battery holder system is floating, and thus, doesn’t impact chassis flex, and allows for quick battery installation and removal. The system is compatible with both shorty- and standard size battery packs.
The battery plate is mounted on the rear alu bulkheads to ensure more secure mounting and precise handling and flex of the chassis.
The graphite battery tray is designed to create a gap between the chassis and the batteries, so that the batteries can receive better cooling from the airflow and to provide the intended flex from the chassis and battery tray interaction with each other.
The composite battery holders are mounted to the top of the battery tray and are easily turned for quick insertion- and removal of the battery packs. These parts ensure secure battery mounting, but do not limit the flexibility of the chassis.
The unique battery tray system of the X8 works together with the lower chassis plate in a uniform flex system.
The battery holder system is floating, and thus, doesn’t impact chassis flex, and allows for quick battery installation and removal. The system is compatible with both shorty- and standard size battery packs.
The battery plate is mounted on the rear alu bulkheads to ensure more secure mounting and precise handling and flex of the chassis.
The graphite battery tray is designed to create a gap between the chassis and the batteries, so that the batteries can receive better cooling from the airflow and to provide the intended flex from the chassis and battery tray interaction with each other.
The composite battery holders are mounted to the top of the battery tray and are easily turned for quick insertion- and removal of the battery packs. These parts ensure secure battery mounting, but do not limit the flexibility of the chassis.
Chassis Flex.
The uniform flex system of the chassis allows to adjust different flex characteristics to adjust the car to all different track conditions. By adding or removing the screws on the front chassis brace the flex can be adjusted from very soft up to very stiff.
Electronics Installation.
Different battery types feature different electronic installation options for optimized weight balance.
- When long battery packs are used, the electronics are mounted on a separate graphite plate above the batteries.
- When shorty packs are used, the electronics can be mounted directly on the chassis, next to the batteries.
- When long battery packs are used, the electronics are mounted on a separate graphite plate above the batteries.
- When shorty packs are used, the electronics can be mounted directly on the chassis, next to the batteries.
Battery Mounting.
Wicket bracket keeps the batteries apart with a gap in between for independent battery flex in the battery tray as well to improve cooling of the batteries.
Bulkheads.
The aluminum bulkheads are designed to join the lower chassis plate and battery tray together in a durable, efficient, and lightweight design. The bulkheads provide optimal stiffness, flex and handling characteristics, even when using harder foam tires.
The front and rear bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to provide the lightest & strongest framework for the car. The bulkheads feature a striking titanium color.
The aluminum bulkheads are designed to join the lower chassis plate and battery tray together in a durable, efficient, and lightweight design. The bulkheads provide optimal stiffness, flex and handling characteristics, even when using harder foam tires.
The front and rear bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to provide the lightest & strongest framework for the car. The bulkheads feature a striking titanium color.
Front End.
The aluminum bulkheads are designed to join the lower chassis plate, and battery tray together in a durable, efficient, and lightweight design. The bulkheads provide optimal stiffness, flex and handling characteristics, even when using harder foam tires.
The graphite plate of the front suspension connects to the aluminium bulkheads with the servo and steering directly attached to it. The front assembly is attached to the chassis through an aluminum pivot ball holder for rigid and precise operation.
The servo holder is a graphite plate that mounts to the front suspension plate, independent of the main chassis, for precise handling & control.
The precise adjustments and ease of operation is made possible by the use of steel pivot balls in the aluminum holder. The plate is connected together with the battery plate using two graphite adjustment plates that control chassis flexibility. The platform is mounted to the chassis using a combination of rubber o-rings and shims to adjust the stiffness of the front assembly, greatly affecting the steering characteristics and providing exceptional tunability.
The graphite plate of the front axle assembly is made from premium high-quality 2.5mm graphite material.
Front Pod.
Fully independent front pod moves on the pivot balls to ensure maximum performance from the front suspension. There are two different pod stiffness adjustment alternatives that can be used for easy adjustment to fit individual preferences.
Rear End.
The entire rear end is mounted on the lower chassis independent of the radio tray. The rear section features a graphite rear bumper that protects the car from back markers and serves as a convenient location to hold the car.
Belt & Belt Tensioner.
The belt tensioning system consist of a set of three bearings, where the outermost one is flanged, and is mounted onto a steel bushing. The special design of the pulley attachment ensures that the pulley covers and flange bearings work together in a perfectly smooth & reliable manner to ensure the belt will remain in place even under extreme compression of the chassis.
On the front suspension, the bearings are mounted directly on the bulkhead at a fixed location. The tension is adjusted by moving the rear tensioner bearings on the graphite belt tensioner plate.
The belt tensioning system consist of a set of three bearings, where the outermost one is flanged, and is mounted onto a steel bushing. The special design of the pulley attachment ensures that the pulley covers and flange bearings work together in a perfectly smooth & reliable manner to ensure the belt will remain in place even under extreme compression of the chassis.
On the front suspension, the bearings are mounted directly on the bulkhead at a fixed location. The tension is adjusted by moving the rear tensioner bearings on the graphite belt tensioner plate.
Caster & Axle Height.
Adjusting the front caster is a very simple process, made by loosening four (4) screws and moving the upper graphite plate to one of three adjustment positions. The available caster settings are 10°, 13.5° and 17°.
The front steering blocks on the X8 feature concentric and eccentric bushings which allow roll center adjustment as well as positive caster adjustment in front. The eccentric bushings can adjust axle height and inline/trailing position, also impacting the front ride height.
Adjusting the front caster is a very simple process, made by loosening four (4) screws and moving the upper graphite plate to one of three adjustment positions. The available caster settings are 10°, 13.5° and 17°.
The front steering blocks on the X8 feature concentric and eccentric bushings which allow roll center adjustment as well as positive caster adjustment in front. The eccentric bushings can adjust axle height and inline/trailing position, also impacting the front ride height.
Servo Saver.
The servo saver has a short stand to match the low height of the battery tray and a key-lock system that ensures the servo saver will stay secured even during chassis flex in extreme conditions.
The centralized servo saver is ball-bearing supported for super-precise and smooth operation, with an adjustable spring collar for fine tuning tension preload. The servo saver features easily adjustable Ackermann positions that greatly influence the steering characteristics, allowing the X8 to be tuned for all driving styles and track conditions.
The servo saver has a short stand to match the low height of the battery tray and a key-lock system that ensures the servo saver will stay secured even during chassis flex in extreme conditions.
The centralized servo saver is ball-bearing supported for super-precise and smooth operation, with an adjustable spring collar for fine tuning tension preload. The servo saver features easily adjustable Ackermann positions that greatly influence the steering characteristics, allowing the X8 to be tuned for all driving styles and track conditions.
Pivot Balls.
The X8 front suspension contains precision pivot balls that are specially hardened to better withstand harsh crashes and extend their lifespan.
A four pivot balls are captured by strong M10 nuts from graphite composite mixture to minimize weight and ensure smooth suspension movement.
The standard pivot balls are made from steel for maximum durability and lifespan. For those who are focused on minimizing unsprung weight, optional lightweight aluminum and titanium pivot balls are available.
The X8 front suspension contains precision pivot balls that are specially hardened to better withstand harsh crashes and extend their lifespan.
A four pivot balls are captured by strong M10 nuts from graphite composite mixture to minimize weight and ensure smooth suspension movement.
The standard pivot balls are made from steel for maximum durability and lifespan. For those who are focused on minimizing unsprung weight, optional lightweight aluminum and titanium pivot balls are available.
Steering Blocks.
The steering blocks are molded from a medium composite mixture to keep suspension geometry consistent and to provide strength and accuracy.
Thanks to perfect molding, bearings fit into the steering blocks without any extra play for maximum stability and precise steering.
The included 0° king-pin steering blocks allow installation of optional graphite aerodynamic disks that can improve low & high-speed steering and improve stability in high-speed corners.
The steering blocks are molded from a medium composite mixture to keep suspension geometry consistent and to provide strength and accuracy.
Thanks to perfect molding, bearings fit into the steering blocks without any extra play for maximum stability and precise steering.
The included 0° king-pin steering blocks allow installation of optional graphite aerodynamic disks that can improve low & high-speed steering and improve stability in high-speed corners.
Bumper.
The front lower bumper features extra body mount positions to fit all popular racing bodies. The aluminum 7075 T6 front body posts use eccentric mounting for front/rear mounting locations that position the body 2mm front or rear.
Front Offset & Track Width.
Front track width is easily adjustable via steering block pivot balls, and the front offset is adjusted by 0.5–2.5mm using included shims. This alters steering geometry & steering characteristics.
Rear Track Width.
Rear track width is adjusted by adding or removing shims & wheel pins on the rear axle. It’s adjustable in a range of 3mm.
Rear Body Holders.
The rear body holders can be moved frontwards or rearward together with the body by 2mm. The side holder posts are fully adjustable to ensure the body is properly supported at the desired height. The high level of stiffness prevents body flex during high speeds to maintain consistency and stability from the handling.
The rear body mount holder accommodates mounting of all popular racing bodies and meets all rules. The reinforced body mount is reliable and durable to withstand hard crashes.
Drive Shafts.
The tiny front CVD drive shafts are manufactured from HUDY Spring Steel™, the most effective drive shaft material by the industry leader HUDY. Self-developed HUDY Spring Steel™ ensures the longest drive shaft life, maximum strength, and lowest weight.
Hardened with a proprietary process, the drive shafts provide unbeatable lifespan and reliability.
Pulleys, Axles & Outdrives.
Pulleys, axles & outdrives are all high precision components designed for high competition racing and machined only from the premium materials to ensure the highest strength, reliability and performance.
Spur Gears.
The lightweight transmission features a small spur gear from the well-proven NT1, allowing fast acceleration and low rotating mass.
The spur gear is made from a durable composite material. The special composite material is very light which helps to decrease the weight of rotating parts for improved acceleration.
The spur gear is molded with a special technique allowing the gear to be absolutely true, thus improving the drivetrain efficiency. The gear is stamped with a tooth number for easy identification.
Ball-Bearings.
The X8 is fully ball-bearing equipped and features high-speed, blue-sealed ball-bearings throughout the drivetrain for maximum drivetrain efficiency. The high-tolerance, high-performance bearings are degreased and lightly oiled with Aero Shell Fluid 12™ for maximum smoothness and long life. The main ball-bearings are oversized with extra-strong bearing frames to ensure smooth, efficient running even under extreme conditions.
Adjustment Possibilities
The X8 features fully-adjustable front geometry: caster, camber, toe, ride height, track-width, Ackermann, roll centers and weight balance. For quick & easy adjustment, we recommend using set-up tools and accessories from HUDY, the world leader of RC tools.
XRAY Instruction Manual.
XRAY Instruction Manuals have become the industry standard, being simply the best manuals included with an RC model car. Whether you are a first-time builder or an experienced racer, all instructions are straight-forward and easy to understand. The full-color instruction manual contains large 3D illustrations that show all assembly details in the clearest possible way.
