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Mugen MBX8

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Old 01-13-2018, 11:02 AM   -   Wikipost
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E2021 - MBX8 1/8 Nitro Buggy Kit

Chassis:
The MBX8 chassis features a new design that improves traction and stability in bumpy conditions and on the exit of corners. The steering post are also keyed into the MBX8 chassis for easier maintenance.

Differential & drive train:
High Traction Differentials are included in the MBX8. The Mugen Seiki HTD provides increased acceleration, longer runtime, and more consistent handling. The HTD's also increase stability, traction, and improve handling in bumpy conditions. The HTD has a new larger volume diff cup to increase consistency during long main events. This makes it easier to time rhythm sections, better in bumpy and low grip conditions, helps to increase traction, and increases fuel mileage.

The new gearbox makes allows you to remove and service the differentials without detaching the suspension arm mounts. Easy access to the front and rear differential.

New straight cut 13T bevel gear & 44T conical gear. The new straight cut bevel and conical gears increase acceleration, runtime, and efficiency. A free and efficient drive train will also increase speeds while cornering.

Light weight one-piece wing mount:
The new lightweight one-piece wing mount lower the center of gravity. The position of the wing and wing mount is optimized to improve the performance of vehicle. The height of the wing mount is adjustable. This allows you to control the down force on the rear of the vehicle by simply raising or lowering the mount on the shock tower.

Light weight high down-force wing:
The new IFMAR legal wing is lightweight and provides amazing down force and cornering. The underside of the wing uses a new design to reduced weight and creates additional down-force.

Suspension:
New suspension mounts. The FF/FR/RF/RR are new for the MBX8.
The front and rear lower arms use a new impact resistant material for increased durability. The new arms are box-shaped and include arm stiffeners to reduce flex and increase durability. Adjusting the hardness of the lower suspension arms is now possible. This allows you to fine tune the steering and traction from track to track. CFRP plates will be released as an option part.

Center differential mount & plate:
The center differential mounts use a stiffer material and has a new top plate to reduce chassis flex and increases clutch bell, spur gear, and clutch bearing life. The reduced chassis flex also provides more consistent handling in all conditions. The top plate design also makes it easier to adjust the brakes and easier maintenance.

Enclosed Battery box and updated carbon fiber radio plate:
The MBX8 still uses a flat 2S Lipo or Life battery, but the receiver battery is now enclosed in a molded battery box. The battery box allows for quick and easy access to the battery. The molded box also helps protect the battery from hard impacts. The battery box is mounted to an updated carbon fiber radio plate.

Other new parts and upgrades:
Body, Clamping Servo Saver Nut, F/R Shock Towers, Front bumper, Front center and rear center universal joint.

Mugen Seiki MBX8 Manual

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Old 05-01-2018, 11:03 PM
  #556  
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That suck then hey might have go the rc8b3.1 way or upgrade 7r then
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Old 05-03-2018, 05:06 PM
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Default Maxed out gear mesh?

Wondering if any one has had this issue.

On my MBX8, the clutchbell/spur gear mesh is too loose, and the chassis motor mount screws are maxed out on the slots on the chassis, they are as far as the can go.
At first I was using the stock screws with the countersunk washers. When I saw it was extremely loose and couldn't get it any closer because the washers were already against the chassis, I switch to some button head machined screws with no washers. Once again, I maxed out movement, and basically pushed them as far as they go on the chassis, it is a little better but by gear mesh is still way too loose.

My kit had come with no chassis in the box and had to contact Mugen to send me one. I wonder if it was out of their bad batch.

Last edited by ddavila; 05-03-2018 at 05:17 PM. Reason: typo
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Old 05-03-2018, 05:41 PM
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Sometimes the engines are different. Which engine are you using.
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Old 05-03-2018, 06:17 PM
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Originally Posted by ddavila View Post
Wondering if any one has had this issue.

On my MBX8, the clutchbell/spur gear mesh is too loose, and the chassis motor mount screws are maxed out on the slots on the chassis, they are as far as the can go.
At first I was using the stock screws with the countersunk washers. When I saw it was extremely loose and couldn't get it any closer because the washers were already against the chassis, I switch to some button head machined screws with no washers. Once again, I maxed out movement, and basically pushed them as far as they go on the chassis, it is a little better but by gear mesh is still way too loose.

My kit had come with no chassis in the box and had to contact Mugen to send me one. I wonder if it was out of their bad batch.
???motor mount???
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Old 05-03-2018, 09:22 PM
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Originally Posted by KINGZJ View Post
Sometimes the engines are different. Which engine are you using.
Novarossi Mantra, which just to make sure I swapped it with a Novarossi Cinco BT that I have in my MBX7, and problema srill on the MBX8, all fine on the MBX7.

Motor mounts are the factory box ones, with the slotted areas facing outward of course. I do plan on getting the one piece to avoid that gear area flex but not sure this would solve my problem.
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Old 05-04-2018, 10:11 AM
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Originally Posted by ddavila View Post


Novarossi Mantra, which just to make sure I swapped it with a Novarossi Cinco BT that I have in my MBX7, and problema srill on the MBX8, all fine on the MBX7.

Motor mounts are the factory box ones, with the slotted areas facing outward of course. I do plan on getting the one piece to avoid that gear area flex but not sure this would solve my problem.
What clutch bell? 13T? If you are having issues with a 13T bell and 46T, or 47T spur, I would have to guess something is wrong with the chassis.
Maybe post up some pictures to see if anyone can see something else that is out of the ordinary.
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Old 05-04-2018, 10:53 AM
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Originally Posted by jkas10 View Post
What clutch bell? 13T? If you are having issues with a 13T bell and 46T, or 47T spur, I would have to guess something is wrong with the chassis.
Maybe post up some pictures to see if anyone can see something else that is out of the ordinary.
The clutch bell and spur are both box setup stock. I’ll post some pics up later. Thanks!
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Old 05-04-2018, 11:30 AM
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Anyone running the carbon inserts on their buggy and if so, how do you like them and how is the durability?

I've been hearing folks having issues with them cracking.
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Old 05-04-2018, 02:15 PM
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Originally Posted by cHAmpa View Post
Anyone running the carbon inserts on their buggy and if so, how do you like them and how is the durability?<br /><br />I've been hearing folks having issues with them cracking.
you can use nanoflex bianchi maurizio
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Old 05-04-2018, 03:46 PM
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Originally Posted by tom1974 View Post
you can use nanoflex bianchi maurizio
Interesting, but doesn't ship to the US.
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Old 05-05-2018, 02:42 AM
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Originally Posted by cHAmpa View Post
Interesting, but doesn't ship to the US.
contact Maurizio bianchi on Facebook
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Old 05-08-2018, 04:59 PM
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Does any one have part number for cvd dog bone and what easy I need to convert my mbx7r from uni to cvd
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Old 05-09-2018, 08:33 AM
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Old 05-16-2018, 07:27 PM
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Default Pro builds

does any of the Pro’s do “pro builds”.
Im away for work for over a month and wanted two kits built for the titles when I get back end of June. I shouldn’t have sold my cars last month.
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Old 05-16-2018, 11:43 PM
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Originally Posted by 91junior View Post
does any of the Pro’s do “pro builds”.
Im away for work for over a month and wanted two kits built for the titles when I get back end of June. I shouldn’t have sold my cars last month.
Don't think any of the pros do, but you may want to message Adam to ask.

Mugen/Tim Long does offer build services:
Mugen Seiki Racing Pro Build
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