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Mugen MBX8

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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 09-03-2018, 04:19 PM
  #766  
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Who uses the additional weight on the back of the chassis? Should I get both the 20 and the 40 or should I start with the 40 weight? What’s your take?
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Old 09-04-2018, 03:56 AM
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Originally Posted by mattythegreat View Post
Who uses the additional weight on the back of the chassis? Should I get both the 20 and the 40 or should I start with the 40 weight? Whatís your take?
use weight If you have grip
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Old 09-04-2018, 06:51 AM
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Originally Posted by tom1974 View Post
use weight If you have grip
wait use weight if you have grip or use weight to achieve more grip?
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Old 09-04-2018, 07:11 AM
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The weight under the rear chassis brace can act as a pendulum. Once the rear starts to slide its harder to stop. The weight gives more pressure to a point but its harder to control when it starts to move. Also on a really bumpy track the weight in the back will cause more dramatic suspension movements. Its a good thing to experiment with it just works differently than what you would think. I have played with both the 20 and 40 weights. Most of the time the 20 is bolted in.

Jesse
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Old 09-04-2018, 11:33 AM
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[Quote = mattythegreat; 15292595]


il peso si sta prendendo o si usa il peso per ottenere piý presa?
[/ QUOTE]
If you use weight your car have less grip
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Old 09-04-2018, 08:30 PM
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Originally Posted by MugenDrew View Post
All of the info I can give you will only be regarding the 6 hole medium pack game changers.
I have run them enough to see there benefits and short comings.
I will begin testing the 8 hole medium pack hopefully this weekend.
Can't wait to hear about your findings...

On another note, has anybody tried the "blue CSI Squared V-Port Pistons" on the MBX8? I ran them on the MBX7 and really liked them.
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Old 09-05-2018, 04:18 AM
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To add to what KINGZJ stated.
The lure of more than 25 grams on the rear is almost instantaneous weight transfer to the rear when applying throttle.
A short run up to a large tripple that everybody is double singling. Except you and your fourty gram weight. Your car is sketchy everywhere else.
What you can't see from the drivers stand is that with every blip of the throttle, every rut in the track the rear end is making contact with the track.
What Tom said. Loss of grip.
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Old 09-11-2018, 02:32 PM
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Default Set up Book!!!

hello great pilots and admirers of MUGEN SEIKI !!! first time I write in the forum (by the way interesting and of much learning); I own a MBX7, MBX7T and soon the MBX8. I have been in the hobby for a short time compared to people and professionals. I have been a pilot since 2005 and the little I know I am ALWAYS learning! My big question (that is why I ask everyone) is the great controversy that exists with the book of adjustments (set up book) especially with the book of adjustments HUDY. since the small (not because it is small) book of MUGEN SEIKI RACING (web) is contradicted in certain criteria with the other books. and asked??? In the end it is not all geometry and physics when we adjust our cars, WHY ??? they are not all these UNIVERSAL books. Is advertising ??? AND WHO HAS THE TRUTH OF THESE REPORTS TO ADJUST CARTS ??? many. thanks to all. ANUNNAKI
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Old 09-12-2018, 09:27 AM
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The books are contradicting each other, some times themselves because whoever wrote doesn't understand the implications of one little change. A little change can affect other adjustments and then don't work as intended, that's why you sometimes have to change more than one thing to keep the other adjustments in range.

For example, rear tire toe affects wheelbase, drive axle bind. From the wheelbase change it means it also changes anti squat, from the axle bind the chassis attitude during cornering/fore-aft forces changes and so on and so forth. See?
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Old 10-08-2018, 02:40 AM
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Hey guys, quick question. Has anyone run the CVD's in the front and rear (centre) and is there any advantage over the standard?
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Old 10-09-2018, 01:23 AM
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Originally Posted by pegsy View Post
Hey guys, quick question. Has anyone run the CVD's in the front and rear (centre) and is there any advantage over the standard?
Universals joints have less friction under load, that's it. On the wheel side that is also true but the pivot points have to be aligned with the steering axis otherwise it increases friction and working angle.
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Old 10-11-2018, 04:57 AM
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This is for my mbx8 ...... Associated
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Old 10-14-2018, 11:40 AM
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I heard several people complaining about the car being unstable due to more power given to the rear of the car. I have three friends who moved on to other cars immediately after getting the 8. They both owned mbx7. Is there an issue indeed?I am interested in buying the car. Sorry for not having the time to read the whole thread.
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Old 10-14-2018, 12:04 PM
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I found the car is sensitive to diff oil. Iíve tried every configuration possible and found out that 6-4-2 f/c/r works very awesome and any track conditions. If you run over 3 in the rear on a medium grip track the car will want to get loose on exit
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Old 10-14-2018, 12:17 PM
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Originally Posted by fastchvy View Post
I found the car is sensitive to diff oil. Iíve tried every configuration possible and found out that 6-4-2 f/c/r works very awesome and any track conditions. If you run over 3 in the rear on a medium grip track the car will want to get loose on exit
loose on exit would be exactly what they were describing.
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