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-   Australian Racing (https://www.rctech.net/forum/australian-racing-29/)
-   -   Team Magic E4 (https://www.rctech.net/forum/australian-racing/188521-team-magic-e4.html)

OLD 69 10-30-2007 11:50 PM


Originally Posted by fast micro (Post 3817553)
I think the packaging cost more than the chassis, very neat and tidy (NICE!), chassis comes half built, bottom deck, bulkhead and top deck are all done (see photo)

http://www.rcmodels.com.au/images/im...s/DSC02802.htm

CVD is also built (screwless, 2 pins lock everything in place). Steering looks good with about 10 thousand bearings ;) It shouldn't take long to put that lot together.

Hope to have mine running by next week.

Dont forget the wheel hubs bearings and driveshaft come pre-assembled for you. If only the threaded the turnbuckles too :mad:


Originally Posted by Dragonfire (Post 3817588)
No way.... If that chassis is balanced with 6cell brushed, it will be very heavy on electronics side with 5cell brushless. This will be a chassis that requires the speedy to be oposite its normal position to even out.

I think what the Knight is implying there will be less re-balancing comapred to the more conventional designed touring cars.

With the new sub 1400 gram rule with 5 cells, most people are finding it hard to get their cars weight down that low due to having to add extra weight on the battery side to get the cars to ballance perfectly.

Ari

TomB 10-31-2007 01:05 AM

props to team magic for thinking outside the square...lets hope this unit doesn't turn out (performance, and quality wise) like the team magic buggy though:o

pitdog 10-31-2007 02:00 AM


Originally Posted by OLD 69 (Post 3817617)
Dont forget the wheel hubs bearings and driveshaft come pre-assembled for you. If only the threaded the turnbuckles too :mad:



I think what the Knight is implying there will be less re-balancing comapred to the more conventional designed touring cars.

With the new sub 1400 gram rule with 5 cells, most people are finding it hard to get their cars weight down that low due to having to add extra weight on the battery side to get the cars to ballance perfectly.

Ari

hey ari have you been racing your buggy

black-knight 11-01-2007 03:41 PM

some good build pics here:

http://www.rctech.net/forum/showthre...=181231&page=6

Dragonfire 11-02-2007 05:52 PM


Originally Posted by OLD 69 (Post 3817617)
I think what the Knight is implying there will be less re-balancing comapred to the more conventional designed touring cars.

With the new sub 1400 gram rule with 5 cells, most people are finding it hard to get their cars weight down that low due to having to add extra weight on the battery side to get the cars to ballance perfectly.

Ari

From what I here 5cell will go up to 1430 next year. I see alot of the guys overseas not bothering to balance their chassis and they are still fast! One thing is clear.. if the chassis works well, the soft connection from motor to front wheels will offer amazing levels of steering. I'm guessing we will only have to wait till early dec to see how good.

$$$... 11-02-2007 11:05 PM

I'm seriously thinking about getting one... something a bit different for a change, heck it wouldnt be the first time I've had a 3 belt electric car... just wondering about parts quality and support. Anyone that has run their nitro tourers and buggies care to weigh in???

TomB 11-03-2007 01:15 AM


Originally Posted by $$$... (Post 3827036)
I'm seriously thinking about getting one... something a bit different for a change, heck it wouldnt be the first time I've had a 3 belt electric car... just wondering about parts quality and support. Anyone that has run their nitro tourers and buggies care to weigh in???

looks good ay, you gotta wonder about the unsprung weight though with car. those arms have those alloy support beams going through them, and the cvd's and hub's look pritty chunky. infact everything looks chunky, even the drivetrain.

do you recon they made the drivetrain a little heavier to give the car more rotating mass to counteract the friction (possibly) caused by the 3 belt design? even the sway bar design looks chunky:confused:

also how would that chassis perform turning left to right? it has that big hole for the batteries on one side that must take away some stiffness from that side of the chassis i'm guessing?

bender 11-03-2007 01:53 AM


Originally Posted by TomB (Post 3827198)
do you recon they made the drivetrain a little heavier to give the car more rotating mass to counteract the friction (possibly) caused by the 3 belt design? even the sway bar design looks chunky:confused:

The problem is not friction but low speed drag. The drivetrain theoretically should already have more rotating mass simply because there are more belts and pulleys. Ideally they need to keep rotating mass low to allow the drivetrain to spool up as quick as possible - especially for slow corners.

I agree about the sway bar, but perhaps that design eliminates the tweak you can get with normal sway bars ?


also how would that chassis perform turning left to right? it has that big hole for the batteries on one side that must take away some stiffness from that side of the chassis i'm guessing?
I don't see this as being any different to the 6 fairly big holes other cars have for the cells ;) I imagine that the battery tray would stiffen the car up a bit too.

Like everyone else these are just thoughts based on the pictures - everyone will know more once a few hit the tracks.

fast micro 11-03-2007 06:33 AM

All the alloy are made from a lightweight alloy and everything on its own feel light, so when put together, it won't be too heavy, this include the sway bar setup.

The drivetrain put together doesn't feel any worse then a twin belt (turning by hand.

The battery tray on the other hand is a bid heavier (alloy tray) and is very stiff so it should stiffen up the chassis, but it still flex a little. I think this will be a good rubber tire car, but I race indoor carpet with foam, so it will be interesting to see.

The stupid thing is it only comes with a Futaba servo saver and when I email Team Magic they confirm that you have to purchase extra servo saver if you are not using Futaba.

OLD 69 11-04-2007 03:35 PM

4 Attachment(s)

Originally Posted by Dragonfire (Post 3826389)
From what I here 5cell will go up to 1430 next year. I see alot of the guys overseas not bothering to balance their chassis and they are still fast! One thing is clear.. if the chassis works well, the soft connection from motor to front wheels will offer amazing levels of steering. I'm guessing we will only have to wait till early dec to see how good.

Dont know much about the rules next year, either way less ballancing is needed with this chassis layout. As far as steering goes, i have NEVER driven a car with as much as the E4.


Originally Posted by $$$... (Post 3827036)
I'm seriously thinking about getting one... something a bit different for a change, heck it wouldnt be the first time I've had a 3 belt electric car... just wondering about parts quality and support. Anyone that has run their nitro tourers and buggies care to weigh in???

Parts are not an issue. Your LHS can get them if not get them to contact HEI as they are the importer. If you dont mind mail order im sure there are other shops in AUS that can help.


Originally Posted by TomB (Post 3827198)
looks good ay, you gotta wonder about the unsprung weight though with car. those arms have those alloy support beams going through them, and the cvd's and hub's look pritty chunky. infact everything looks chunky, even the drivetrain.

do you recon they made the drivetrain a little heavier to give the car more rotating mass to counteract the friction (possibly) caused by the 3 belt design? even the sway bar design looks chunky:confused:

also how would that chassis perform turning left to right? it has that big hole for the batteries on one side that must take away some stiffness from that side of the chassis i'm guessing?


With the prototype that was tested, they used a plastic battery tray which obviously flexed tooooo much. This caused more flex in turn more grip when turning left. Now with the alloy tray bolted to the lower chassis the uneven flex is 99% gone.

Looks can be deceiving, im sure you have heard the saying never judge a book by its cover. Check out the pics below.

E4 Arm in first pic, Corally arm in second pic. As you can see the Corally arm is 9grams heavier than the E4. Main drive pulley and complete axle dogbone in the next two pics. I didnt really have anything to compare for the last two pics, just thought you would like to know.

OLD 69 11-06-2007 09:19 PM

http://i176.photobucket.com/albums/w...9/IMG_0598.jpg

http://i176.photobucket.com/albums/w...9/IMG_0592.jpg

Ari

Xray To The Max 11-06-2007 09:28 PM

Looks Great Ari, well done!:lol:
Very neat wiring as usual!
Good luck with the new Car Man!

Regards, Ryan

James 11-06-2007 10:07 PM

v'nice, everything so central, weight dist will be great. Looking forward to seeing one in action or trying one myself

Pie_robot 11-06-2007 11:23 PM

wow that cap is close to that pinion lets just hope that GTB dont move.

that would be nasty:lol:

OLD 69 11-07-2007 12:04 AM


Originally Posted by Pie_robot (Post 3839907)
wow that cap is close to that pinion lets just hope that GTB dont move.

that would be nasty:lol:


LOL now that you mention it, it does look close. I even had to double check it to see if it was touching.

Pic makes it look hell of a lot closer than it really is, it has 5-7mm distance between the pinion and the end of the cap.

Ari


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