XRAY XB8 ’23 4WD 1/8 Nitro Off-Road Buggy

From XRAY:
2023 All-new Features.

• All-new front & rear semi-split bulkhead with quick differential access without disassembling suspension
• New front & rear diff height adjustment through eccentric bushings
• Improved central drivetrain angle and height adjustment
• Redesigned chassis for semi-split bulkheads increases traction via improved rear chassis flex
• Redesigned front aluminum & rear graphite shock towers
• Reinforced M3/M4 steel shock screws for increased reliability
• Updated alu steering plate and servo saver
• Front & rear lower suspension holders with new mounting positions
• Front upper suspension holder matches the new servo saver
• Redesigned wing holder fits the new semi-split rear bulkhead
• Wickerbill rear wing allows quick downforce adjustments and pre-marked airflow holes to reduce downforce
• Front upper arms with new mounting locations for optional wings for improved downforce
• New lower front bumper reduces weight and matches the new semi-split bulkhead
• Improved lower shock absorber ball joints for more secure fitment of the lower spring retainer
• New 46/13 internal gear ratio and 14T clutch bell expands usable gear ratios
• New centering brake slide screws provide smoother brake pad operation

Diff Bulkheads.

All-new front & rear bulkheads feature a semi-split design for easy diff access while adding the valuable new diff height adjustment. The bulkhead design also uses a bushing for the gearbox input to alter the alignment and height of the bevel drive gear with the diff height. In addition to matching the new diff height adjustments, this input bushing also allows the front central driveshaft to operate with a reduced angle for less friction and wear on the CV joint components and improved driveline efficiency.

Diff Height Adjustment.

The new diff height adjustment of the semi-split bulkheads uses eccentric bushings to set the diff position. The diff height has 3 different settings. The diff height adjustment is a vital tuning option that allows quick set-up adaption for all different track conditions.

The ideal position will vary depending on the track conditions and ride height.

Central Drive Train.

The new design of the semi-split bulkhead with the inline bushing for the bevel drive gear creates a more linear orientation for the front center drive shaft to reduce the CV joint angle, improving driveline efficiency and decreasing friction and wear, resulting in improved on-track performance.

The height and angle of the rear center drive shaft is also adjustable depending on the height adjustment of the differential.

Front & rear – there are 3 different angle configurations for adjustment of the front and rear drive train.

Matched Gears.

The new differential crown gear and bevel drive gear feature specially designed profiles of the 46T and 13T gears for a perfectly matched engagement for smoother operation, less drag and significantly longer lifespan.

Gear Differential.

The high-volume differentials improve vehicle control and consistency over long runs and enhance reliability. The differentials feature larger capacity cases and larger internal gears with more teeth for improved differential moment. The larger oil volume and the shape of the gear teeth reduce overheating for improved consistency. The stronger diff pin design also improves reliability.

Easy Diff Access.

The semi-split bulkhead design and compact front bumper allows direct access to the differential while the entire suspension assembly remains mounted on the car.

Chassis.

The chassis is updated to accommodate the all-new semi-split bulkheads and suspension holders, and features new milled pockets in the rear section for increased chassis flex.

The chassis is an important component that contributes to the XB8’s handling characteristics. The chassis dimensions and flex characteristics are selected for the best blend of stability, traction and steering. The chassis is machined for extra clearance under the bulkheads to accommodate the new diff height adjustment feature.

The chassis fits both SOFT and HARD composite radio boxes without chassis modification.

The chassis is CNC-machined from 3mm high-quality Swiss 7075 T6 aluminum; strategically machined in low-stress areas and then anodized to make it as light as possible without affecting strength or rigidity.

Shock Towers.

All-new front & rear shock towers are redesigned for the semi-split Bulkheads with the front shock tower also updated for the reinforced M4 shock screws that provide increased reliability.

The front shock tower is CNC-machined from 4mm Swiss 7075 T6 aluminum for strength and durability.

Rear shock tower from graphite material improves traction in all different track conditions. CNC-machined from extra-thick 4mm premium-grade graphite.

Front & rear shock towers featuring an additional row of shock absorber positions for super fine adjustments.

The lower row creates less chassis roll for higher corner speed while the upper row increase the roll to help increase traction.

Steering System.

The steering system includes a new Ackermann plate and graphite servo saver component shape to work with the new semi-split bulkhead.

To ensure servo saver reliability, the servo saver parts are moulded from graphite material which is more resistant and efficient in dusty conditions. The dual-arm steering system is simple yet effective, featuring an integrated and easily adjustable servo saver, and a Swiss 7075 T6 aluminum steering plate.

The conical spring is longer and stronger, ensuring more precise steering and improved reliability.

Ackermann is easily adjusted by changing steering link mounting positions on the steering plate. Bump steer is adjusted by inserting shims between the steering plate and steering linkage.

Suspension Holders.

All-new front & rear suspension holders for semi-split bulkheads offer an expanded range of set-up adjustments. The front upper suspension arm holder is also updated for the semi-split bulkhead.

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 XB8 suspension geometry can be completely adjusted in mere seconds.

Machined from premium Swiss 7075 T6 aluminum and black coated.

Wickerbill Wing.

All-new wickerbill rear wing features more downforce that helps increase traction when needed, and has 12 pre-marked air flow hole positions that can be opened to fine tune downforce for any conditions. The wickerbill plate is mounted via 5 screws for easy downforce setup.

Made from a strong special composite mixture, the wing was designed to survive severe abusive and extreme crashes while keeping its shape.

The optional Lexan wing has an adjustable position and consists of two pieces: the main wing and the center fin that adds more stability and increases strength of the wing around the mounting area. The rear section of the wing is pre-bent to reinforce the wing and eliminates the use of additional heavy composite wickers. This makes the back of the wing strong while still allowing for wing flex in a crash. The pre-bent rear section of the wing is an important detail to create the desired downforce. Used by the factory team and suggested for all track conditions.

Rear Wing Holder.

Updated rear wing holder fits the new semi-split bullhead. The rear wing holder has a super-slim, 1-piece design that has reduced weight and increased strength. The wing holder has maximum stability while still allowing flex during impacts.

Front Upper Arms.

Front upper arms have additional mounting holes for the optional front upper arm wings. The wings increase downforce on the front suspension for increased traction and helps to keep the buggy nose down.

Optional wings are available in Lexan and Carbon alternatives.

Suspension Arms.

To improve the performance and reliability, the Pivot Ball suspension arms and optional C-hub suspension are molded from special composite mixture. The rear suspension arms are molded from extra-hard composite mixture that makes the car easier to drive. The front lower and upper arms feature a composite mixture change from soft to medium. The optional front lower C-hub suspension arm is molded from a hard composite mixture.

Shocks.

All-new lower shock ball joint features a lock extension that fits into the lower collar, reducing the chances for the retainer to become separated from the spring in a crash.

The XB8 shocks bodies feature composite lower shims for improved shock shaft movement. The shock caps feature 4 bleed holes for easier building and more precise rebound control. The longer shock shafts allow more suspension travel. Multiple shock membrane choices are available to tune the suspension to a wide variety of track conditions.

Oversized big-bore shocks featuring 16.2mm I.D. shock bodies are externally threaded with an adjustable collar for quick & easy spring preload adjustment. The shock bodies are hardcoated in a titanium color and feature a 1-piece alu shock cap.

The XB8 now includes the 4 Dot front springs.

Diff Gears & Drivetrain Ratio.

New gear ratio improves adjustments range. Differential main gears are manufactured from HUDY Gear Steel on a precision manual gear machine. This material was specially formulated and developed for use in gears. All gears are hardened to provide the longest possible lifespan.

A wide range of different gears — spur gear, clutchbell, crown gear – is available for perfect set-up and tailoring to particular racing conditions.

Clutchbells are available in sizes of 13T and 14T.

Spur gears are available in a range of 46T, 47T, and 48T.

Brake System.

The new specially designed centering brake screws’ smooth surface improve braking feel and provided more consistent operation as the brake pads slide more easily on pin.

The spring and ball-shaped bushing give more reliable and consistent brake linkage operation.

To further improve the braking efficiency and to ensure consistent braking characteristics, the ultra-efficient pre-glued brake pads are included in each XB8 kit.

The laser-cut, precision flat-ground steel brake disks provide fade-free braking in conjunction with the pre-glued brake pads. The brake disk is small, slim, and very lightweight. The precision hand-grinding allows true, wobble-free rotation. Both brake disk and brake pads are specially heat-treated for maximum lifespan.
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