G4RS

October 18th, 2009

Introducing the new generation G4RS

G4RSII - Design evolution

G4RS - Design evolution

It’s our pleasure to inform Team Magic enthusiasts that we are releasing a 1:10 GP Touring Car in the near future. With the prestigious DNA of a two time European champion, the new G4RS pushes the boundaries of performance to a new level. Just like the G4 series, the new G4RS will feature unique designs and cutting-edge technology that will continue the tradition and spirit onto the next generation G4RS.

The G4 design team pursued, refined and sought the perfection of 1:10 GP touring car many times over, testing, correcting and unveiling all that was learnt in an all new design. The unique design is user friendly and adjustable, it suits different driver preferences and offers total control, in default setup it’s easy to drive. It can be setup for beginners to enjoy immediately and for the experienced racers, it’s an exciting new level of performance. We believe the G4RS with it’s outstanding design and technology offers a new era of enjoyment for all drivers and model motorsport enthusiasts.

Design and discovery

The narrower chassis

The narrower chassis

Our R&D team refined the G4 over many years, testing, developing and remodelling components within the chassis specifications. An intimate knowledge of every component, how it works, its accessibility, reliability and durability have been extensively researched and improved using real world results to produce a well designed and engineered high performance model racing car.

Ultimately designers reach boundaries, continuity of G4 ensures everyone enjoys and appreciates the methodical approach of developing a model motor racing car. The new G4RS is a revolution in design, the centreline of the car has been remodelled and weight distribution reconfigured with a new modular layout. The new G4RS specification required design changes outside the exisiting chassis’ geometry.

A window of opportunity to apply a wealth of ideas beyond the scope of the exisiting chassis were now available to be integrated with a set of new concepts that emerged from R&D. Innovations such as the Flex chassis, quick adjustable sway bars, front bumper aerodynamic support and the evolution of the arrow head fuel tank are just some of the key features designed into the new generation G4RS.

Extending the geometry of the suspension continues the heritage of excellent cornering. The narrower bulkhead closely positions the transmission and brake disk on the trans axle to improve braking. Every aspect of the G4 was reviewed, improved, remodelled and refined to produce completely new design.

1. All new unique design

Designs and techniques continually evolve, attention to detail, overall appearance and quality reflect the care Team Magic builds into the fabric of each model. The G4RS is an evolution of design and technology, a unique achievement that gives drivers a top class racing car.

2. Best cost performance

Designed to suit the rookie or pro, designers invested a lot of time analysing and remodelling their ideas into the G4RS. They considered development, production and quality control procedures to produce a car that has the best handling its class.

3. Best control performance

It’s an all new chassis with improved center of gravity. Perfect fit CAD/CAM machined parts deliver straight line transmission performance and precise cornering. The evolution of the G4RS expands an existing design with upgrades such as a flex chassis, centralised radio plate, 2 DUO Speed and differentials.

4. Friendly adjustable setup

The G4RS is built on thoughts and ideas to improve and streamline the method of adjusting the setup to suit your needs. Many unique and innovative design changes help simplify basic adjustments such as the quick adjustment of the anti-roll bars. Adapting to different conditions quickly, makes more time for you to enjoy the G4RS on track.

What’s new?

  • Slimmer, stronger chassis
  • ALCOA 7075 – T6 Aluminium
  • New 2 speed system and gearing
  • Integrated belt tensioning cams
  • External access receiver bay
  • Improved brake pad access
  • Smaller and lighter rear bulkheads
  • Wider front and rear flying wings
  • Extended suspension geometry
  • Modular and maintenance friendly
  • Slanted engine mount (optional)
  • Rear torsion bar anti sway
  • Innovative chassis FLEX system

Looking from the rear


Rear

The chassis plate and bulkheads are narrower with a tightly centered weight distribution and an extended geometry with longer spanning “flying wings” improves the roll center, roll bar efficiency, shock absorption and ultimately traction. The rear shock tower is wider and provides better shell support, it mounts lower on the bulkhead, downforce is applied lower on the chassis improving the CG. The sway bars incorporate the new quick adjustment system that offers bar tension adjustment to be performed with a screwdriver and simple twist from beneath the bottom arms. TM continues the challenge of developing not only a performance car, but one that is race friendly and able to quickly be adapted to environmental changes on track. The differential is the smallest on the market, it’s lighter and produces less centrifugal force due to the reduced rotational mass. It is designed to provide better cornering stability, better acceleration and improves the overall performance.

Innovative fuel tank and top plate design

Modular / Accessible

Modular / Accessible

G4′s are well known for adopting the laid down servo mounting, there was no need to change a successful design. Managing a combustion engine millimetres away from a sophisticated digital radio system is another matter. By repositioning the battery ninety degrees, an accessible receiver compartment is positioned where the previous tank recessed, the top plate is stronger, simpler and easier to maintain. The new generation of “arrow” head fuel tank is stylish and innovative in design, the rear of the tank recesses where the receiver bay once resided. The top plate is a solid piece of carbon fibre, its rigidity is used to enhance the performance of the FLEX system and protects the electronics from fuel spillage and grime.

A view from above

A top view

A top view

Looking from above, the fuel tank extends forward of the front pulley, the narrow design is clearly visible by looking at the width of the transmission axle. The bumper plate and posts are wider and provide better shell support and those meaty bottom arms delight all drivers with the comfort of knowing they will deliver the power from the engine and handle the buffeting and impact produced when driving aggressively or on a rough track surface.

The new 2 speed transmission and position of the brake disc improves braking. With engine performance and acceleration elevating to new levels braking systems need to work more efficiently. Keeping the inertia of a 2 speed clutch and brake disk close together means there’s less flex in the trans-axle and overall efficiency is improved. The brake arm is swept back giving more arc of travel and allows a wider range of adjustment.

Side view

Right Side view

Right Side view

The first thing to notice is the slanted engine mount, another improvement that lowers the CG on the car. The slanted engine mounting is optional and a conventional engine mount will work in place. The larger spur gears of the two speed system are designed for the modern high performance engines and the two speed clutch has been moved behind the second gear. This moves the rotational mass of the two speed clutch closer to the bulkheads and provides for better support of the transmission forces and gears changes. A one way bearing now protrudes through the second gear and the system lends itself to quick changes, better power transmission and braking performance. The clutch has been redesigned and lightened to provide better cooling by increasing the surface area on the clutch bell. This also improves acceleration, power engagement and overall engine performance.

FLEX – Chassis tweaking

FLEX System - rear

FLEX System - rear

The designers at Team Magic have taken chassis setup to a new dimension with their implementation of the FLEX system. By allowing more flex in the chassis plate with a narrower front end and slotted rear, our designers added an adjustable rigid top plate to the system thus transferring the structural flex to be based on a layered laminated design.

Rear Flex Chassis

Rear Flex Chassis

How it works

The differential and transmission bulkheads mounted to the chassis plate act as supports and are in two part either side of slots in the chassis strategically placed to allow rear flex. A rigid stiffening top plate binds them and can be tuned to adjust the rigidity of the chassis plate. On the rear, two outer and two inner fixings mount the stiffening top plate to the supports. By loosening or tightening the inner screws which are shimmed by two inserts, the driver can vary the amount of stiffness of the chassis. The front end works in a similar manner, the narrow slim front of the chassis plate can be stiffened by tightening or loosening screws on the rigid carbon fibre top plate.

How it optimizes

Using the system varies depending on circumstance, the FLEX system can be used to expand the suspension and chassis dynamics constantly or used to compensate for track conditions and driving style. The possibilities are endless and the outcome is a dynamic and innovative approach to chassis tuning.

Harry Sinanian

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