XRAY T4 Touring Car

Oct 01, 2012 No Comments by

All-new design and completely re-engineered platform. The lightest, fastest and most advanced XRAY electric touring car ever. The all-new XRAY T4….the new legend.

“At the core of every XRAY car is our passion for high performance racing cars, dedication for absolute perfectionism, smart design approach and heritage of our extensive experiences and achievements. Creating an all-new platform meant a complete re-engineering and redesigning of majority of all the parts on the car. Following thousands hours of track-testing with the factory team around the world and thousands of hours in R&D and prototyping have resulted into an outstanding racing car, a masterpiece manufactured and machined in-house in Europe, with precision as you would expect from XRAY. I am very proud to present you the all-new T4.”

Martin Hudy
XRAY T4 designer

T4 all-new features:

  • All-new T4 platform
  • All-new chassis design
  • All-new top deck
  • All-new super low shock towers
  • All-new Super Low Profile (SLP) aluminum shocks
  • All-new Super Short Shock Springs (4S)
  • All-new redesigned and reengineered bulkheads
  • All-new unique super low profile tweak-free motor mount
  • All-new upper bulkhead clamps
  • All-new updated alu lower suspension holder
  • All-new steering system
  • All-new tweak-free servo mount
  • All-new servo saver
  • All-new anti-roll bars
  • All-new rear uprights
  • All-new composite hubs for bulkheads
  • All-new low profile foam bumper
  • All-new front lower bumper mounts
  • Improved chassis flex
  • Increased traction
  • Improved steering characteristics
  • Improved weight balance
  • Improved CG

All-new T4 Features in Detail:

  • Completely redesigned all-new T4 platform
  • Designed for highest performance at all levels of racing, with specific attention paid to the smallest details
  • New thinner 2.2mm graphite chassis designed for increased traction, steering, stability, and improved cornering speed
  • New graphite top deck for increased in-corner steering and traction
  • New super low profile shock towers to lower the CG and improve stability of the car
  • New SLP (super low profile) aluminum shocks to further lower the CG and improve stability of the car
  • New 4S shock springs developed & designed for the new SLP shocks
  • New bulkheads, lightened and strategically placed closer to the center of the chassis to provide more steering and traction for the car
  • New super low profile motor mount machined separately from layshaft bulkheads and featuring a new tweak free mounting system
  • New upper bulkhead clamps designed for the new super narrow placement of the bulkheads
  • New redesigned front alu lower suspension holder designed for easier access for Ackermann adjustments
  • New rear alu lower suspension holders, redesigned for increased durability and moved closer to the chassis centerline to increase steering
  • New alu steering plate for dual arm steering system with central mounting of the steering linkage
  • New servo mounting system for improved balance and for elimination of unwanted tweak
  • New servo saver with additional positions for servo linkage mounting
  • New anti roll bars revised to fit super narrow bulkheads
  • New rear uprights from hard material for increased stability of the car
  • New composite hubs for differentials to fit super narrow bulkheads
  • New front body mounts shortened to lower CG
  • New low profile foam bumper to lower CG
  • New race tested and tuned shock positions
  • New rear 50mm drive shafts

Main Features:

  • New T4 platform is the next evolution of the hugely successful T3 platform
  • Chassis designed to provide maximum traction and steering
  • Chassis specifically designed for the newer generation of heavier electronics and batteries
  • Redesigned top deck for super narrow bulkheads, providing more rear traction and in-corner steering
  • SLP aluminum shocks have been shortened by more than 7mm to provide maximum stability under all track conditions while reducing traction roll under high traction conditions
  • C2.7 front and C2.3-2.6 rear progressive springs are shortened to fit new SLP shocks and the spring rates have been optimized to provide maximum steering and traction 3mm thick graphite shock towers shortened by 15mm to maximally lower the CG
  • Completely redesigned bulkheads have been lightened and the mounting system has been revised to provide maximum traction, steering and stability
  • Motor mount bulkhead features the lowest possible motor position, compatible with all standard brushless motors
  • Unique super light and low profile motor mount is designed to lower CG, eliminate tweak and move the motor 3mm closer to the centerline of the chassis
  • Rear suspension holders positioned towards the centerline result in narrower rear track-width for more in-corner steering
  • Servo mount allows the servo to be suspended near the chassis centerline, providing better balance while eliminating tweak and allowing for additional traction
  • Alu steering plate for dual arm steering system servo linkage to be mounted in the center of the plate, providing quicker direction changes while mechanically limiting steering throw for smoother steering characteristics
  • Servo saver with extra hole for new steering linkage mount positions
  • Steering is isolated from chassis flex, ensuring tweak-independent steering for super precise and constant steering characteristics
  • Narrower anti-roll bar wires designed to fit the new super-narrow bulkheads
  • Super low profile front bumper made from lightweight, high-resilience foam
  • Included harder rear uprights for increased stability
  • LiPo-specific composite battery holders prevent batteries from moving in crashes
  • Suspension holder system allows suspension arms to be mounted independently from diff bulkheads allowing for elongated chassis flex to generate more traction
  • Independent suspension holders allow for more precise and fine set-up adjustments via different-thickness shims
  • Hard front steering blocks increase steering response while decreasing front tire overheating in high-traction conditions
  • Aluminum rear suspension holders feature integrated toe-in
  • 38/20T (1.9) internal gearing for efficient drivetrain and highest performance
  • Lightweight black-anodized Swiss 7075 T6 aluminum turnbuckles
  • Super-lightweight Swiss 7075 T6 aluminum rear drive shafts, hard-anodized, color-coated and laser-engraved, 38% lighter than standard drive shafts
  • Super-light drive axles with 35% less rotating mass
  • Super-smooth, super-light maintenance-free composite gear differential
  • Centered layshaft and split bulkheads provide enhanced balance due to optimum weight distribution of the motor towards centerline, giving quicker left-right transitions
  • Super-light composite front Solid Axle with XRAY’s own smart quick-change outdrive system for easy outdrive exchange; no servicing or replacement of drive shaft blades needed, translates into reduced servicing costs
  • Independent front and rear diff height adjustment and belt tension adjustment in both front and rear bulkheads
  • Long front & rear suspension arms for improved traction and easier handling featuring ideal shock mounting positions
  • Suspension arms feature integrated anti-roll bar mounts; rear arms feature 3 different anti-roll bar mounts for super-fine adjustment of the rear anti-roll bar
  • Includes both front and rear anti-roll bars (front 1.4mm & rear 1.2mm)
  • C-hubs with large openings for quick and easy assembly/disassembly of the CVDs; prevents collision of CVD with C hub in serious crashes (compatible with the ECS drive shafts)
  • C-hubs available in standard caster angles (2°, 4°, 6°); available in two hardnesses (M – medium, H – hard)
  • Rear uprights with integrated 0° toe-in prevent suspension geometry changes in serious crashes; available in two hardnesses (M – medium, H – hard)
  • Steering blocks available in two hardnesses (M – medium, H – hard)
  • 84T 48P spur gear – extra-hard material, wobble-free design
  • Orange-anodized aluminum parts for stylish and distinctive look
  • Reduced sensitivity to changing track conditions, giving super-consistent performance during runs
  • EFRA, ROAR, FEMCA spec compliant for modified and stock racing
  • Designed specifically for LiPo batteries and brushless motors

Other Specifications:

  • Rebuildable front CVD drive shafts made from world-renowned, self-developed HUDY Spring Steel™; world’s tiniest yet most durable drive shafts are hand ground for maximum precision. Recommended for use in front for increased durability
  • Super-lightweight wheel axles manufactured from premium HUDY Spring Steel™
  • Premium-quality, Kevlar®-reinforced drive belts
  • Lightweight middle layshaft CNC-machined made from aircraft aluminum
  • Front upper and lower composite bumper made from specially formulated material to withstand hard impacts
  • Lower suspension holders with three different roll center positions offer additional ultra-fine roll center adjustment via different-thickness shims
  • Easily adjustable inboard toe-in using included shims
  • Easily adjustable wheel offset using optional shims or optional offset wheel hubs (-0.75mm, +0.75mm, +1.5mm)
  • 7075 T6 aluminum wheel hubs
  • Shock shafts are specially hardened for maximum strength
  • Shock absorber foam inserts for perfect shock rebound
  • XRAY self-developed and manufactured 4S springs are manually selected for maximum precision, equal length, and equal damping characteristics
  • Small, robust steering blocks made from special proprietary composite material, featuring 2 Ackermann positions
  • Complete set of high-speed, blue-sealed ball-bearings are degreased and lightly oiled for maximum efficiency, individually controlled, selected, and inspected
  • Aluminum self-locking wheel nuts
  • Super easy to build, set up, maintain, and drive

Adjustment Possibilities:

  • Fully-adjustable front and rear suspension geometry: caster, camber, toe, anti-dive, anti-squat, ride height, droop, track-width, roll center, wheelbase
  • Adjustable gear differential stiffness via oil viscosity
  • Three different upper linkage positions on upper bulkhead clamps
  • Roll center height adjustment via shims on upper bulkhead clamps
  • Adjustable front and rear belt-tension control using quick-adjust system incorporated into bulkheads
  • Front and rear diff height adjustment using quick-adjust system incorporated into bulkheads
  • Adjustable HUDY aluminum turnbuckles (steering, front & rear upper links)
  • Multiple upper and lower shock mounting locations at front and rear
  • Adjustable Ackermann and bumpsteer
  • Pre-drilled chassis locations for optional chassis weights in center of chassis
  • Adjustable front and rear anti-roll bars
  • Chassis pre-drilled holes for weight balance adjustment

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Bringing you RC product news you can use on a daily basis as Car Action's Online News Editor. I have over 15 years of RC experience, plus a background in print and broadcast journalism, engineering, information technology, direct marketing, and even banking. Currently I enjoy racing 1/10 electric off-road, and have been bitten by the short course bug.
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