Specs

2014 New:

All-new completely redesigned platform

All-new chassis

All-new front bulkheads

All-new rear bulkheads

All-new radio plate

All-new 2-speed

All-new rear transmission

All-new clutch

All-new shock towers

All-new shock absorbers

All-new front arms

All-new steering blocks

All-new rear uprights

All-new front upper bumper

All-new front & rear anti-roll bar systems

All-new Ackermann positions

All-new front middle shaft mounting system

All-new graphite aerodynamic disks

All-new pivot pins with grooves

All-new fuel tank mounting system

General

Developed, designed, and styled by legendary Dipl. Eng. Juraj Hudy and Martin Hudy, manufactured exclusively by XRAY in Europe in the world's most sophisticated RC manufacturing facility

Pure racing design, premium luxury quality, highest performance

Premium, exclusive, and high-tech materials used throughout

Unique, super-strong composite materials with XRAY's self-developed secret compound mixtures for suspension and drivetrain parts

Low CG 1/8 on-road car platform

Easy-access to drive train parts for super-quick rebuilds and set-up changes

Chassis

Newly-redesigned chassis with improved steering and stability, better weight distribution and weight transfer

Redesigned & repositioned front middle shaft holder, with incorporated muffler mounting system to eliminate negative flex influence

CNC-machined 5mm Swiss 7075 T6 chassis, super-narrow design

Smooth chassis underside with countersunk fasteners

Special openings machined at front & rear of chassis for graphite stiffeners and additional weights

Narrow radio plate CNC-machined from high-grade 2.5mm graphite is now stiffer in front for more stability and easy driving

Additional servo saver placement holes in chassis & radio plate for quick Ackermann changes

Increased clearance around fuel tank in the radio plate allows for more fuel tank movement

Low-profile centralized 125cc fuel tank with hypertonic lid and internal stone-type filter, and specially-designed internal baffles for improved fuel pickup and scavenging

Fuel tank pressure cap has 1-pc profiled seal for perfect fit and sealing

Front & rear bulkheads made from all-new composite mixture for increased rigidity and stability, and fittings for new front & rear wire anti-roll bar systems.

Super-lightweight bulkheads were designed as the central backbone for precision-engineered suspension geometry and chassis flex, while allowing easy access to all parts.

Integrated front & rear belt tension adjustment in bulkheads

Unique compact lightweight radio case with clean design and internal layout for receiver and optional on-off switch

Centralized, low-mounted receiver battery pack below fuel tank for easy access; micro-size receiver battery pack allows fuel tank to be lowered by 3mm, creating an ultra-low 1/8 on-road platform

Multi-Flex™ mounting options for battery holders (graphite or brass)

Optional brass battery holder

Radio plate Multi-Flex™ adjustment for super-fine tuning of chassis flex via fixed or flex bushings

Engine & Clutch

Quick-set aluminum engine mount system with fixed engine position for super-easy engine installation and gear mesh adjustment

Easily-adjustable 3-shoe XCA (XRAY Centrifugal-axial) reverse clutch

New reverse clutch redesigned to work with new smaller transmission

New 4-bearing system in clutchbell gives improved durability

Improved clutch design provides smoother & faster acceleration, with increased clutch shoe lifespan

Clutchbell, clutch nut, flywheel nut, thrustbearing collar manufactured from special HUDY Spring Steel™ for maximum lifespan and durability

Hardcoated flywheel, clutch dis, spring cup manufactured from premium Swiss 7075 T6 aluminum

Ultra Stable Clutch Spring works in wider range of conditions, easier to install, consistent performance even after long use

Clutchbell / pinion gear construction allows super-precise assembly

Swiss 7075 T6 machined pinion gears feature special profile teeth that are individually machined on a high-precision gear production machine; special hardcoating ensures maximum life

Carbide axial thrust-bearing and high-tensile spring

Brakes

Strong, highly-efficient brake system

CNC-machined 1-piece brake disk with extra-deep machined grooves for light weight and exceptional heat dissipation, precision flat-ground for maximum braking efficiency and super-smooth braking action; strategically-placed ventilation holes ensure minimal brake pad wear and super-true, wobble-free rotation

High-grip brake pads are specially bonded to laser-cut steel backing plates

Brake disk and brake backing pads are heat-treated for maximum performance and lifespan

Special return springs ensure proper gap between brake pads

CNC-machined 7075 T6 aluminum brake cam is ball-bearing supported for super smoothness and precise brake control

Drivetrain

Smooth and efficient 1/8 on-road drivetrain

Ultra-smooth, highly-efficient belt/pulley drivetrain with super-low rotating mass

Redesigned & repositioned front middle shaft holder offers easy front belt & pulley access and easier maintenance

Exclusive use of HUDY Spring Steel™ in drivetrain parts gives highest performance and unmatched lifespan

High-performance HUDY Spring Steel™ front CVD drive shafts

Rear dogbone-style HUDY Spring Steel™ drive shafts

Super-lightweight wheel axles CNC-machined from HUDY Spring Steel™

Swiss 7075 T6 alu wheel locks

PUR®-reinforced high-efficiency, low-friction, fine-pitch drive belts

Pulleys molded from super-low friction composite material for extra-long lifespan, pulley covers feature self-cleaning holes

Complete set of high-speed, blue-sealed ball-bearings, degreased, lightly oiled with Aero Shell Fluid 12™ for maximum drivetrain efficiency

Oversized main ball-bearings with extra-strong bearing frames

Adjustable side-belt tensioner on graphite plate, with reinforced bushing for increased reliability

2-Speed Transmission

Significantly improved 2-speed transmission with smaller & lighter gears offers better bottom-end power and acceleration

New smaller & lighter gear carrier and alu drive flange with 1-way bearing

Smaller & lighter gears from well-proven NT1 for faster acceleration and lower rotating mass

Precision-manufactured, super-smooth lightweight hollow middle layshaft made from tough HUDY Shaft Steel, specially heat treated for extra strength and long life

High-quality 1-way bearing hand-ground for maximum running precision and strength

2-speed spur gear adapter CNC-machined from Swiss 7075 T6 for precision fitment of 1-way bearing, allowing super-precise and wobble-free spur gear installation

World's most precise spur gears molded from special composite mixture ensures wobble-free running and eliminates run-out

The 2-speed gear box shoes molded from special composite mixture

Axles

Front super-lightweight one-way axle made from Swiss 7075 T6 has super-low rotating mass and lowest CG.

Rear axle made from HUDY Spring Steel™ with composite lightweight axle pulley

One-way outdrives manufactured from HUDY Spring Steel™ and specially ground for maximum precision

Suspension

Advanced suspension geometry precision engineered and finely tuned for high-competition racing

Lightweight, durable, and reinforced suspension parts molded from XRAY's self-developed composite mixture for suspension parts. Each suspension part is molded from a high-tech composite that is specially formulated for the particular part.

Highly-polished, high-tensile steel suspension pivot pins give smooth suspension action, now feature machined groove for better affixing by setscrew

I.S.S. (Integrated Suspension Settings™) for fully integrated adjustment possibilities.

Full suspension adjustment via square eccentric bushings in front upper and rear upper/lower bulkheads.

Newly-redesigned front steering blocks & rear uprights allow mounting of new graphite aerodynamic disks

Tiny, tough steering blocks made from special composite mixture have 0° kingpin (+1° and -1° kingpin steering blocks optionally available)

Rear suspension extensions featuring new shock mounting positions, made from steel for improved durability

Small, robust rear uprights feature two easily-adjustable upper roll center positions for traction adjustment. Uprights feature two body mounting adjustment positions to accommodate different body types.

Concentric & eccentric bushings in front steering blocks & rear uprights allow easy adjustment of roll center, caster, wheelbase, and axle height

Easily-adjustable 0.5-2.5mm wheel offset using included shims on the wheel axles for front steering adjustment and rear traction characteristic adjustment

Easily-adjustable wheelbase & weight balance and caster adjustment via positioning clips

Newly-designed front arms accommodate new front wire anti-roll bar system

Choice of front anti-roll bar systems: wire or blade-type (both included)

Rear wire anti-roll bar supported by ball-bearings

Optional front & rear anti-roll bar wires available for fine tuning

Premium Hudy Spring Steel™ adjustable turnbuckles with stiff core

Precision-ground steel pivot balls included for robustness and enhanced lifespan; optional lightweight aluminum pivot balls available

Strong M10 composite nuts for minimal weight and smooth pivot ball movement

Steering

Centralized servo saver is ball-raced for super-precise, smooth operation

Adjustable spring preload tension

Alternative servo-saver mounting positions (forward or rearward)

Easily-changed Ackermann positions

Shocks

Newly-redesigned shocks for improved traction and steering, optimized up & down travel

Shocks are now compatible with NT1 2014-spec shocks (only differing in spring hardness and rear ball joints)

Redesigned longer shock bodies accommodate longer shock shafts and new shock pistons

New shock pistons with 2- and 3-hole designs and 1.0/1.1/1.2mm holes, made from special Delrin™ material to ensure extreme roundness and extra-smooth damping

CNC-machined shock bodies made from Swiss 7075 T6 aluminum, externally fine-threaded for precise ride height adjustment

Low-profile internal membranes for super-smooth, precise damping

Specially-hardened shock shafts for maximum strength

XRAY self-developed and manufactured racing springs are hand-selected and tested for maximum precision, equal length, and equal damping characteristics

Redesigned compact front & rear CNC-machined premium 2.5mm graphite shock towers work in conjunction with new shocks

New rear shock mounting positions

Body & Wheels

Newly-redesigned front upper bumper made from strong composite material now accommodates new front wire anti-roll bar system

Precision downforce adjustment on front lower bumper via removable outer window inserts

Front upper and lower composite bumpers are made from a special composite material to withstand hard impacts

New CNC-machined high-strength graphite aerodynamic disks improve both low & high-speed steering, improve rear traction, and improve stability in high-speed corners.

Front and rear body mounts allow 2mm front/rear body position adjustment

Tough composite rear body mount allows mounting of all popular racing bodies and meets all EFRA rules. Features 3 positions for rear upright downforce adjustment.

Assembly & Support

Premium 3D full-color Instruction Manual is included

Comprehensive Set-up Book is available online as a free download

Exclusive Virtual Online Set-up Sheet database with thousands of set-up sheets for race tracks around the world

Premium, unmatched XRAY online support

Adjustment Possibilities

Fully-adjustable front and rear suspension geometry: caster, camber, toe, ride height, droop, wheelbase, track-width, roll centers

Adjustable front & rear roll centers

Adjustable belt tension via bulkhead inserts

Adjustable HUDY Spring Steel™ turnbuckles (steering, servo, rear upper links)

Adjustable Ackermann positions

Front & rear upper and lower shock mounting locations

Adjustable alu racing shocks

Adjustable front anti-roll bar

Optional adjustable rear anti-roll bar

Adjustable weight balance



All specifications are subject to change without prior notice. Pre-production prototype is shown, final specifications may slightly vary. In some pictures optional parts may be shown. All option parts are not included and must be purchased separately. The color of some aluminum parts may vary from kit to kit and some of the kits may not include all the orange or black parts as shown. Some of the spare parts or option parts may not be available at the moment in the orange or black color as shown.

RX8 Specs:

Dimensions
Class: 1/8 nitro on-road car
Length w/o body: 436 mm
Chassis length: 388 mm
Wheelbase: adjustable 291 ~299 mm
Width: adjustable 252 ~260 mm
Weight: 1260 g
Ready-to-run weight: 2290 g
Chassis
Chassis: CNC-machined 5.0 mm Swiss 7075 T6 aluminum
Shock towers: machined laminated carbon graphite (front + rear) with multiple shock mounting
Radio tray: machined laminated carbon graphite
Drivetrain
Type: triple belt, 4WD
Final drive ratio (FDR): 2-speed: 1st 7.86; 2nd 5.74
Front differential: one-way
Rear differential: solid axle
Front drive axle: CVD drive shafts - Hudy Spring Steel™
Rear drive axle: dogbone drive shafts - Hudy Spring Steel™
Suspension: pivot ball suspension
Shocks: machined aluminum, oil-filled, coil-over shocks
Pinion gear (std): hardcoated alu 1st: 18T ; 2nd: 23T
Spur gear (std): molded composite 1st: 59T ; 2nd: 55T
Arms: standard
Adjustability
Ride height: adjustable front + rear
Camber: adjustable front + rear
Caster: adjustable front
Toe: adjustable front + rear
Downstops: adjustable front + rear
Roll center: adjustable front + rear
Ackermann: adjustable front
Anti-roll bars: adjustable and 2.6mm front, 2.8 mm rear
Equipment:
Wheels: not included
Instructions: full-color Instruction Manual with 3D graphics
Packaging: carton box with vinyl bags with parts
Additionally included: Authentication Certificate, set-up sheet, parts list & exploded view, decals
Not included: radio system (transmitter and receiver), personal transponder, steering & throttle servos, engine, manifold & exhaust, starter box & starter box battery pack, receiver battery pack, glowplug igniter, battery charger, 1/8-scale bodyshell , wheels & tires, Lexan® paint, model R/C car fuel (nitromethane), tape, air filter & oil, CA glue, bearing oil, medium-grade (blue) threadlock, tire truer, tools