mugen mbx5-truggy.

[moogenite]

hello all,

i have the mugen seiki mbx5t coming towards me.

i hope to convert it to brushless with mike cronin's help and offcourse the great people of this forum.










i hope i could get it to be similar to brian's hyper 8 qua battery layout and motor mount.


take care, moogenite:p

[jnev]

The members of this forum love the mbx5-t, so we'll be looking forward to the conversion... good luck!!

[moogenite]

now that i didnt know, i tought i was almost the only one here to like :004: mugen:004: .
who here has a mugen?

[jnev]

I am not so sure that very many people have one, but I can guarantee that every time someone asks "which truggy should I get?", the mbx5-t is always on the list. :027:

[jollyjumper]

welcome aboard moogenite, :D

i believe no one here has the mbx5-truggy, but some people have mugen seiki buggy's, dafni has one, silentmonster, rchippie. maybe some others too.

I don't have the MBX5T, but I have driven one. Believe me, it was a hard decision deciding between the Losi 8ight T and the Mugen. I went with the 8ight because of local support at my LHS. Had all things been equal, I would have gone with the Mugen or given the XT8 more consideration. For me, local support is important and the 8ight turned out to be a heck of a truck. I'm not dissatisfied with it, but the Mugen would have been my first choice and you'll see what I mean when the kit arrives and you open the box.

[Serum]

Daf has got a MBX5 prospec and i had this mbx4 with quite some titanium parts on it;
http://picasaweb.google.com/buikpijn...XGoesBrushless

on only 14 cells she did a good 71 km/h

[moogenite]

i looked at jollyjumper's losi and i tought this: not for me!
it's nice, but you can get a standard mugen for a lot less and its just as good or even better.
also its more of a point and shoot driving truck where as you have to baby the losi out of the corners.:031:
not a fan of that, i like to push cars hard.
always been a mugen fan since i know of them, but they where all nitro.

so now that the steel spur/pinion issue is out of the way i tought why not do the mugen seiki truggy.

i believe there were ways to overcome the problem but they didnt appeal to me.

monster mike said he like the single batt side motor alot more then dual batts and top mount motor, what are you guys' toughts about this?

[moogenite]

i reconn i'll have to mod this:



it will be in the way, right?:002:

does this sound right:


Differential Ratio: 4.6 mugen truggy diffs
Spur Tooth Count: 46
Pinion Tooth Count: 14
Total Voltage: 14.8 4s lipo
Motor KV: 2200 neu 1515 1y/f
Tire Diameter (inches): 5.63 grp cubics or grips
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 3.29 : 1
Total Ratio: 15.11429 : 1
Tire Circumference (inches): 17.69 inches (449.25mm)
Total Motor Speed: 32560 RPM
Vehicle Speed: 36.08 MPH (57.96km/h)
Effective Speed Rate: 2.44mph/V (3.92kmh/V)
Effective KV Value: 2200

Single battery, definitely. The dual battery pack is something that you do when the weight distribution would be screwed up otherwise, or you just have to because of other factors. My 8ight T handles just fine with the single battery pack.

When I got my 8ight T, price was also a factor. I'm sort of the electric junkie at my LHS and I do know, somewhat, what I am doing; so when something new comes out he asks me about them or gives me one to test. Things like motors, batteries, and escs. I also get calls from the shop when someone comes in with a question that they can't answer. The shop is nitro oriented, but they are coming along. Anyway, I get good prices on the stuff that I buy and got the 8ight T for a price that I just couldn't say no to. That and the local support made it a no brainer for me.

Believe me, I was no fan of the 8ight buggy, but the truck handles like a whole different animal. I, too, am a point and shoot driver. I don't drive well enough to drive any other way; and the 8ight has been good to me.

[moogenite]

thing is, i might get forced to run ni-mh's if i go to a club.:mad:1

i'd also like to run hardcased lipo's instead of those heatshrinked ones ( pretty much all the packs but the trakpowers and orions)

so mounting 12/14 ni-mh's on one side seems a really stupid thing to do, doesnt it?
as motor weight is around 400 grams at max.
it'd be 450 grams off balance.:026:

any input?

[BrianG]

Don't forget to factor weight distribution as well as balance. What I mean is; if the batteries, even though they are heavier, are closer to the truck centerline, it can be perfectly balanced with a lighter motor that is mounted further out to the side. If that made any sense. And don't discount the weight of the servo, ESC, and receiver.

IMO, batteries on one side won't make a huge difference unless you want it absolutely perfectly balanced. I'm running 14 NiMH cells on one side on my Revo and you couldn't tell by jumping it.

[rchippie]

Originally Posted by Serum

Daf has got a MBX5 prospec and i had this mbx4 with quite some titanium parts on it;
http://picasaweb.google.com/buikpijn...XGoesBrushless

on only 14 cells she did a good 71 km/h

Rene i miss that buggy .

[moogenite]

still dont like mounting 2 6/7 cells packs on one side.:002:

and i really like those tree piece motor mounts.:004:

but, look here once, http://picasaweb.google.com/pics.jak...07506228483874

i wonder if the motor would fit inbetween the mount and the rear brace?

[Serum]

too high c of g; if you want a racer; put the motor to one side and the lipo's to the other.

What do these clubs think of the a123 cells? or are they to stubborn to see they don't burn like lipo's?