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Mugen MBX8

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Old 05-31-2019, 05:05 PM   -   Wikipost
R/C Tech ForumsThread Wiki: Mugen MBX8
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E2025 - MBX8 Worlds Edition - April, 2019

MUGE0240: Wide Offset Wheel Hubs 1mm 2pcs; The 1mm wide offset wheel hubs will increase stability and cornering.
MUGE2146: Inline Front Uprights; The E2146 inline front uprights have smoother steering compared to the stock E2147 trailing front uprights and work great in high traction conditions. E2146 uprights can be used with both CVA and universal style driveshafts.
MUGE2168: -3mm Front Upright Arm; The -3mm front upright arm improves the initial steering response and make the vehicle more stable through the middle and exit of the corner.. The new upright arms also reduce bump steer and make the vehicle more predictable in bumpy conditions.
MUGE2235: 46T Spur Gear; The 46 tooth HTD spur gear provides a great balance of acceleration and top-end speed.
MUGE2252: 12T Pinion Gear
MUGE2254: 42T Conical Gear; The optional 12T bevel gear when used with the 42T conical gear will change the final drive ratio and increase acceleration.
MUGE2260: Center Joint Cup.
MUGE2261: Center Front Dog Bone (84.5mm)
MUGE2262: Center Rear Dog Bone (115mm); The front and rear-center dogbones for the MBX8 reduce friction from the stock universal driveshafts. Less friction will give the vehicle a more efficient drivetrain, increase acceleration, and provide more traction. The dog bones are lightweight, durable, and will increase traction.
MUGE2428: Rear Wing Stay +15mm; The +15mm wing mount has more adjustment and will help increase mid corner rotation and be more stable in high speed conditions.


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 02-18-2018, 01:24 PM
  #376  
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you could try this set up
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Old 02-18-2018, 01:31 PM
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Originally Posted by am View Post
I do not like it. If you bend a hingepin it will not move freely.
I have ran MBX6, 6R, 6R-EU and Mbx7, but none of them have been like this.

After the 7 witch was to tailhappy for me, i switched to MP9 and now have bought a MBX8 to test before i sell fo my Mp9`s :-)
If you bend a hingpin no matter wear it pivots it most likely won't be free to move.
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Old 02-19-2018, 12:39 AM
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Originally Posted by 1evo RRR Driver View Post
Please let me kno what u think, and let me kno if you can get the rear of the 8 locked in
here i try to help:
- drivetrain free?
- rideheight front 1-2mm up?
- rear upper link longer?
- diffs gnarly or smooth? check and adjust with shims under sun-gears
- go down to 2000 rear, up to 7k front
- less antisquat rear
- 20 gr chassis weight rear
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Old 02-19-2018, 12:44 AM
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Originally Posted by am View Post
I do not like it. If you bend a hingepin it will not move freely.
I have ran MBX6, 6R, 6R-EU and Mbx7, but none of them have been like this.

After the 7 witch was to tailhappy for me, i switched to MP9 and now have bought a MBX8 to test before i sell fo my Mp9`s :-)
its no problem to ream them up to 4.1 or 4.2, point is to make them FREEEEEEEE

hudy reamer is never enough, i use chainsaw files.
keep in mind that track dust will make them stuck again (then poeple will complain again about car is too tail happy, but its the wrencher not the car )
plus you will have to check them after a while because arm plastics will bent, they move a little and have to make free again. its normal with mugen because arms are softer then, for ex. xrays.
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Old 02-19-2018, 03:18 AM
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Originally Posted by tom1974 View Post

you could try this set up
Am I reading the diffs right? 5/2/5 ??
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Old 02-19-2018, 04:22 AM
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Originally Posted by TRUGGYRACER1 View Post
Am I reading the diffs right? 5/2/5 ??
5 front
5 Center
2 rear
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Old 02-19-2018, 11:53 AM
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Originally Posted by am View Post
Anyone getting their MBX8 hingepins for the lower arms to move free in the suspensionarm, not just in the pills for the suspensionholders?

I have a reamer (a real reamer not the Hudy shiXX), used a drillbit, polished hingepins and more... Tried every trick in the book, and a couple of others too, but the hingpins are still thight.....

I could drill with a 4.15 or 4.2mm drillbit but thats just crazy. Seems the holes are not aligned properly or the arms are removed from teh mold before they are cooled properly.
I did find the lower arms a bit more tight on the hingepins, I did a bit of reamering (like on the X7) and than put on some antifriction cooper grease on hingepins, and its fine. Arms fall down on its own - nothing mounted on yet.

So IMO yes they are a bit tight but should be ok when you put it all together
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Old 02-19-2018, 01:19 PM
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I use chainsaw files as well. But have reamer as well When you insert the droop screw it use to push material into the hinge pin hole. not use if that still happens
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Old 02-19-2018, 05:45 PM
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Is the x8 as tailhappy has the 7 ? Also does it accelerate straighter or does it kick out the rear end like the x7.
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Old 02-20-2018, 12:07 AM
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Originally Posted by Ricardo_d99 View Post
Is the x8 as tailhappy has the 7 ? Also does it accelerate straighter or does it kick out the rear end like the x7.
its all a question of set-up.
stock, the mbx8 is supposed to be more stable on the rear, yes.

there were 1000 ways of making the 7 stable on the rear as well.

here my 2 cents of what can tested:

- drivetrain free?
- rideheight front 1-2mm up?
- rear upper link longer?
- diffs gnarly or smooth? check and adjust with shims under sun-gears
- go down to 2000 rear, up to 7k front (in the mbx7 we did 10k front)
- less antisquat rear
- 20 gr chassis weight rear
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Old 02-20-2018, 07:20 AM
  #386  
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https://youtu.be/Ffi6lqRMdEk
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Old 02-20-2018, 10:16 AM
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Looks like MBX8 eco...

https://www.facebook.com/adamdrake11...type=3&theater
(link to official Adam Drake's FB page)
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Old 02-20-2018, 11:39 AM
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Originally Posted by tom1974 View Post
https://youtu.be/Ffi6lqRMdEk
holly shit thats insane :I
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Old 02-20-2018, 11:42 AM
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Originally Posted by Donat View Post
Looks like MBX8 eco...

https://www.facebook.com/adamdrake11...type=3&theater
(link to official Adam Drake's FB page)
its not hard to do the eco if you have all the parts from nitro we dont know about the chassis (if its X8) but other parts should work from nitro
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Old 02-20-2018, 01:04 PM
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Originally Posted by carterena View Post
holly shit thats insane :I
Why??
the chassis does not touch the ground
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