Arn0

Team Magic - E4 Touring Car

166 posts in this topic

Ca a l'air sympa cette histoire !!!

cependant la voiture a l'air d'voir été concue pour 6 éléments ... donc obsolète pour 2007 ;) mdr !!!:oo:

oui oui je sors .... :) :) :):speed:

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Perso je trouves ca moche...

Concernant 2007... si justement c'est nickel ce changement de nombre d'élément, le vario va pouvoir être déplacé au centre.. ;)

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beau concept mai c'est vrai que elle est pas tres tres belle, ptet trop d'alu... mais a mon avis tout dans le centre sa doit etre pa mal mais plu dur a regler! car plus (voire trop) réactif aux reglages (voir www.overrc.com championnat du monde, l'article sur le proto de josh cyrul)

et je ne suis pas pro mai je ne suis pas convaincu de la rigidité avec la barrette d'accu (comme sur la pro 3 qui a eut des "problemes" de rigiditée a cause de ça!! et en plus si c'est pour rouler avec des pneu mousses ça risque d'etre encore pire......!!)

max

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lol eu d'accord je rectifie (enfait j'avais pa trop fait gaf o début), la barrette qui sert pa à tenir les accu! ;)

justement jespere que comme elle ne sert quà enlever les accu ils trouveront un moyen qui affaiblira moin a rigidité du chassis! enfin je pens que ça l'affaiblit! lol

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attachment.php?attachmentid=252260&stc=1&thumb=1&d=1185507847attachment.php?attachmentid=252261&stc=1&thumb=1&d=1185508065attachment.php?attachmentid=252262&stc=1&thumb=1&d=1185508094attachment.php?attachmentid=252263&stc=1&thumb=1&d=1185508158

Here are some spy shots taken on the E4 first test day.

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En gros, le principe lancé par Losi; re-centrage maximum des masses.

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Back in October 2006, pictures of Team Magic's up and coming on-road electric touring car were beamed around the world via the internet. As an early prototype, it immediately captured the attention of the R/C world. From its unique styling to its complex nature, every part of the car was totally unique and offered an insight into where touring car chassis design was heading. Eleven months on, and Team Magic have quietly continued to develop and enhance the new car until it has reached its current state. With testing complete, it's time for Team Magic to introduce the latest step forward in electric touring car technology; the Team Magic E4.

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Let's take a closer look at some of the key features of the E4 -- the ultimate on-road racing machine:

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Unique Super Low Friction 3 Belt Transmission:

Another unique design feature of the E4 is the introduction of a 3 belt transmission. It was chosen because of its advantages in motor, battery and radio gear placement. In a classic two belt transmission system, the front belt is centered down the chassis. This layout restricts the design of the car greatly and forces the manufacturer to compromise in componentry layout. The E4 is exactly the opposite which meant no compromises!

Team Magic has also included a beautifully machine aluminum front dual action one-way/spool differential. With the pins inserted the differential acts like a spool. Remove two pins and the diff turns into a one-way. This allows the driver to customize the transmission to suit individual track requirements. In addition to this, the pulleys and center mount are also machine from the same high quality aluminum for improved pulley and belt durability. The rear of the car features a fully adjustable ball differential.

The whole system is set in motion by super low friction belts. The placement and size of the teeth on the belts were designed to be a perfect balance between durability and low friction.

All in all, the advantages of the three belt transmission system outweighed the minimal increase in transmission friction. Top speed can be easily found, lightning quick corner speed cannot.

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Centralized Componentry For Perfect Side To Side Balance:

With the belts out of the way, the designers got to work tweaking weight distribution so both sides of the car were equal. They focused on making sure the heaviest components, like the battery and motor were either centralized on the chassis or very close to it. After a few modifications, they achieved their goal and the E4 now has a perfect side to side balance. This gives the E4 another advantage through the corners by letting the car change direction much quicker. With all the weight placed in, toward the middle of the chassis the E4 also has a very neutral feel and there's less chance of the chassis rolling over. Now you can push the boundaries when it comes to corner speed like never before.

As all the components moved inward, the main chassis plate began to shrink. This reduced the overall weight of the car, again, improving its performance.

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Flying Wing Suspension Arms:

An exclusive design from Team Magic is the Flying Wing Suspension arms found on the E4. This new manufacturing process allowed Team Magic to reduce the size of the suspension arms without sacrificing strength. A lightweight, hollow aluminum rod gives the suspension arm its potent strength and provided the E4 designers with an opportunity to remove or shape excess plastic from around each arm. Both options offer interesting benefits to improving the E4's performance.

The removal of excess plastic helped to not only lower the chassis total weight but also meant the shocks didn't have to cope with additional loads. This improved the E4's acceleration and ability to cope with a bumpy track or surface.

Next, Team Magic set about shaping the arm to serve two purposes; firstly the removal of any holes in the arm makes it much easier for cleaning and secondly, the shape of the arm was molded to help improve airflow. The airflow runs smoothly over the arm and this helps the E4 cut through the air, reducing its drag co-efficient dramatically.

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Super Easy Maintenance

The fun doesn't stop there though because the E4 is also an absolute charm to work on too! The design of the car incorporates quick and easy access to all of the high maintenance areas of any on-road touring car. Take for example, the front and rear differentials. Only four screws hold each differential securely in place. Undo these 4 screws and you now have the ability to lift the entire differential out of car with ease. Make some changes or give it a clean, then drop the diff back in, tighten up the 4 screws and you're ready to race again. Nothing could be easier.

The same applies for the main layshaft which is also held in place by only 4 screws. Slide the belts off the pulleys and lift the entire layshaft out of the car. These quick maintenance features flow right throughout the entire E4 chassis. From the wheels up, the E4 is the ultimate user-friendly touring car on the market.

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Ultra Low Center of Gravity.

A fundamental consideration in manufacturing a high performance on-road touring car chassis is making sure the major components of the vehicle are placed as close to the ground as possible. This gives the car a low center of gravity for increased cornering speed and improved road holding capabilities. The E4 is a perfect illustration how this can be accomplished with creative precision.

The motor and battery pack can account for almost 40% of the cars entire moving mass so it's critical they are given priority in positioning. The motor area of the E4 is machined away to lower the motor a total of two millimeters past the top of the main chassis plate. This may seem like a small gain, but with this design the motor is potentially just 1mm away from the ground. It would be impossible to get it any lower without placing it in undue risk from potential damage.

The battery pack, which is inserted into the chassis from the bottom of the car, receives the same treatment as the motor. Held in place by an aluminum battery tray, the cells are just fractions of a millimeter from being flush with the bottom of the chassis, but at the same time, totally protected. The aluminum tray also aids in dispersing heat from the battery pack.

With the battery being inserted from the bottom of the car, Team Magic's designers were able to lower the top-plate too. This in turn, meant the gearboxes, bulk heads, differentials and steering system were able to follow the same pattern. A low center of gravity chassis gone to the extreme.

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Have no doubts about the E4, its unique and fast, all in one convenient package! We look forward to bringing your more details of the E4 soon.

E4 Main Features:

* Narrowest carbon fiber chassis

* Alum. battery tray

* Alum. belt pulley

* Alum. bulkhead and cover

* Alum. hinge pin mount

* Centralized motor and battery deign

* Quick release front and rear diff

* Quick release main shaft

* Fully adjustable setup design

* Flying Wing arm design

* Front solid axle/one-way

* Rear ball diff

* High corner speed

Text by Andew Webber,

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The narrowest chassis at the market--89mm

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Alum. steering block carrier included with special high efficiency universal joint

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Longest Flying Wing suspension arm at the market

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Lightweight design

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Easy & quick release battery tray design

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Hard coated lightweight alum. battery tray for lightweight & insulstion purpose

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Front, rear and middle quick release design

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bon il y a pas mal de trucs bizarre a mon gout ,mais au moins s'est un chassis qui sort de l'ordinaire

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A essayer surement, si on n'a pas peur de l'originalité et surtout de se retrouver hors des sentiers battus et sans références pour les réglages ...

Mais porquoi pas ?

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E4FS Main Features:

* Most lipo battery & brushless motor can be used

* New 3mm carbon fiber, 96mm wide narrow chassis

* New 2.5mm carbon top deck (with two new alum. posts linked to chassis for strength)

* Front/rear 3mm carbon shock tower

* Front/rear hard coated alum. 7075 universal drive shaft

* Alum. 7075 turnbuckles

* New Shocks

* New thickened arms

* New widened belts

* Single bell crank steering system

* Front/rear ball differential (quick release design)

* New lightweight nylon pulley

* Alum. 7075 FF & RR hinge pin mount

* Alum. 7075 bulkhead

* New rear lower Flying Wing arm for foam tires (1 degree toe-in angle)

* New front lower Flying Wing arm

* Centralized motor and battery design

* Quick release main shaft

* Motor cooling mount

* Front/rear anti-roll bar

E4FS Main Spec:

* 1/10 EP Sedan

* Width--186mm adjustable

* Length--374mm

* Wheelbase--255~261mm

* 3mm carbon fiber chassis

* 2.5mm carbon fiber chassis

* 3mm front/rear carbon shock tower

* Drive ratio--1.888

* Main gear--116T 64P

* Caster block--6 degree

Source: Team Magic

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Non, mais en tout cas c'est du beau, livrée en (petite) partie prémonté, carbone de première qualité, pièces alu superbement travaillés, ... , je la trouve pas mal du tout cette caisse.

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De 1500g la voiture passe à 1200g, beau travail. Près de chez moi, la marque n'a pas beaucoup de fan :s Peut être cette version arrangera les choses ?

Ca change la courroie à l'exterieur.

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Je viens d envoyer un mail chez team magic parce que j étais assez interessé par le chassis.

La réponse fut des plus rapides, ils sont efficaces chez team magic

il semble que la version fs soit ptimisée pour recevoir les packs lipos sans modifs mais mais malheureusement, il s agit aussi d une version foam spec, ce qui veut dire qu elle est plutot adaptée au marché américain ou même italien ou l on roule en pneus mousse.

Il va donc falloir choisir entre la version normale à dremeller de tous les cotés pour faire passer les lipos et rouler en pneus gommes ou prendre la version FS et passer les lipos sans soucis mais chipotter pour trouver les reglages pour rouler en pneus gommes.

Pas facile cette affaire.

Ceci dit, vues les circonstances actuelles, nous n avons personne en Belgique qui commercialise la marque, ce qui veut dire que pour les pièces, ce serait trop chaud.

Dommage, c est quand même un chassis de toute beauté et qui selon certains forums italien, est de tres bonne qualité et tres performant.

Vivement la suite

Amicalement Mass

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apparament beaucoup de pilote utilise des cardan de xray T1 car ceux d'origine casse comme du verre

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voila j ai recu mon chassis aujourd'huis de la part de ART(asia racing team)

je vous mets quelque photos en attendant le reportage sur le montage

Les cellules sont prémontrés, châssis à première vue etroit et fin pour une 1/10, vivement le montage:rolleyes:

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