Mugen MBX8TE Truggy

0verkill

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After years of building Tekno truggies, I wanted to try something new, so I picked up a lightly used Mugen MBX8TE roller. I haven't seen anyone build one of these for hard bashing, so this will be a new challenge. :)

47603

Tekno stock (left) vs Mugen (right)

Both are 7075. The Mugen chassis is only 3mm thick compared to 4mm on the Tekno, however it doesn't have a bunch of milled out pockets, is wider, and has side bends. Nothing compares to the aftermarket offerings from M2C but it does look like a good stock chassis. It's nice to see Mugen finally keyed the chassis for the steering posts unlike the older 7 series.

47604

Mugen (left) vs Tekno (right)

The biggest change with the MBX8 series is the new beefy arm construction and inserts. The older 7 series always had issues with their arms breaking. The arms come with plastic inserts and they also have carbon fiber as an option.

47605

Mugen (left) vs Tekno (right)

Both are 7075. The Mugen front shock tower design is a good bit lower and the Tekno is a little thicker.

47606

Mugen (left, 4.15mm thick) vs Tekno (right, 6.6mm thick)

Both are 7075. The Mugen rear shock tower has quite a range of adjust-ability in the wing height and the Tekno is quite a bit thicker.

47607

King Headz Associated RC8B3 Rear Chassis Brace Mount (7075)

For whatever reason King Headz does not make these for the MBX8 series, only the 7 series. The difference in parts is the 8 series changed to M4 holes in the gearbox, whereas the 7 series used M3. Associated copied Mugen with their car so some parts can be made to fit, and King Headz makes this mount with M4 holes.

47611

I had to trim the rear section for the proper fitment.

47618

King Headz Mugen MBX7 Rear Chassis Brace (7075)

Again, King Headz does not make these for the MBX8 series truggy, only the 7 series buggy. So, I had to drill a countersunk hole in the chassis for the slightly shorter hole distance.

47619

The Associated mount positions the chassis brace just a hair to the side, you don't go by the original hole location.

47620

And there she is, it's bash worthy now. :) I like the King Headz design with the captured nut, the nut cannot rotate.

47621

Connected.

47622

M2C made this very nice aluminum steering top plate for the 7 series. Again on the MBX8 series, I had to trim the underside for the proper fitment and drill out the 2 holes that connect to the gearbox to 4mm.

47623

Connected.

47624

The Mugen CVD driveshaft's are only 3.5mm thick. So I discovered the ability to use the Losi LST 5mm driveshafts, much thicker indeed. I also tried the Arrma 5mm driveshafts which is what I use on my Teknos, but they were too long.

47625

I use 2 shims over the stub axle in order to have the correct dogbone depth in the outdrive.

47626

Uses all stock bearings.

47627

Then I used a 8.7mm wide spacer behind the hex, the Losi stub axle is longer.

47628

Connected.

47629

Fits like a glove.

47630
 
Last edited:

Jimbobjr

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Both Mugen and Tekno look like really high quality. Nice aluminum Machining, and well thought out molds for their quality plastics. I just bought a eb48.2 roller to make a basher buggy since my Typhon is evolving into something else.
Good luck with the build, keep adding pics.
Jim
 

0verkill

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There is a Mugen on consignment at my local hobby shop. It is so tempting every time I walk in there...
The parts look plenty strong. I look forward to your post bashing review!
It will be awhile, still have some more improvements to try. (y)

Both Mugen and Tekno look like really high quality. Nice aluminum Machining, and well thought out molds for their quality plastics. I just bought a eb48.2 roller to make a basher buggy since my Typhon is evolving into something else.
Good luck with the build, keep adding pics.
Jim
Thanks. Nice, you may be interested in some info here. https://www.teknoforums.com/threads/monster-eb48-3-buggy.971/

The Mugen does look really nice and I really like the fact that the Mugen chassis actually has room to work on stuff. Are you the same @0verkill from WoodiE's Teknoforums.com?
I know what you mean, the M2C Tekno wide chassis adds much more room. Yup that's me.
 

chevys10zr2003

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It will be awhile, still have some more improvements to try. (y)


Thanks. Nice, you may be interested in some info here. https://www.teknoforums.com/threads/monster-eb48-3-buggy.971/


I know what you mean, the M2C Tekno wide chassis adds much more room. Yup that's me.
Nice! I'm going to keep my eye on this build then!

Yeah I've thought of getting the M2C chassis but I normally don't upgrade anything unless I have an issue or break something, which I haven't done on the Tekno chassis yet. I did snap the screws holding the front shock tower to the diff case though. Still need to fix that.
 

Lride Chart

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After years of building Tekno truggies, I wanted to try something new, so I picked up a lightly used Mugen MBX8TE roller. I haven't seen anyone build one of these for hard bashing, so this will be a new challenge. :)

View attachment 47603

Tekno stock (left) vs Mugen (right)

Both are 7075. The Mugen chassis is only 3mm thick compared to 4mm on the Tekno, however it doesn't have a bunch of milled out pockets, is wider, and has side bends. Nothing compares to the aftermarket offerings from M2C but it does look like a good stock chassis. It's nice to see Mugen finally keyed the chassis for the steering posts unlike the older 7 series.

View attachment 47604

Mugen (left) vs Tekno (right)

The biggest change with the MBX8 series is the new beefy arm construction and inserts. The older 7 series always had issues with their arms breaking. The arms come with plastic inserts and they also have carbon fiber as an option.

View attachment 47605

Mugen (left) vs Tekno (right)

Both are 7075. The Mugen front shock tower design is a good bit lower and the Tekno is a little thicker.

View attachment 47606

Mugen (left) vs Tekno (right)

Both are 7075. The Mugen rear shock tower has quite a range of adjust-ability in the wing height and the Tekno is quite a bit thicker.

View attachment 47607

King Headz Associated RC8B3 Rear Chassis Brace Mount (7075)

For whatever reason King Headz does not make these for the MBX8 series, only the 7 series. The difference in parts is the 8 series changed to M4 holes in the gearbox, whereas the 7 series used M3. Associated copied Mugen with their car so some parts can be made to fit, and King Headz makes this mount with M4 holes.

View attachment 47611

I had to trim the rear section for the proper fitment.

View attachment 47618

King Headz Mugen MBX7 Rear Chassis Brace (7075)

Again, King Headz does not make these for the MBX8 series truggy, only the 7 series buggy. So, I had to drill a countersunk hole in the chassis for the slightly shorter hole distance.

View attachment 47619

The Associated mount positions the chassis brace just a hair to the side, you don't go by the original hole location.

View attachment 47620

And there she is, it's bash worthy now. :) I like the King Headz design with the captured nut, the nut cannot rotate.

View attachment 47621

Connected.

View attachment 47622

M2C made this very nice aluminum steering top plate for the 7 series. Again on the MBX8 series, I had to trim the underside for the proper fitment and drill out the 2 holes that connect to the gearbox to 4mm.

View attachment 47623

Connected.

View attachment 47624

The Mugen CVD driveshaft's are only 3.5mm thick. So I discovered the ability to use the Losi LST 5mm driveshafts, much thicker indeed. I also tried the Arrma 5mm driveshafts which is what I use on my Teknos, but they were too long.

View attachment 47625

I use 2 shims over the stub axle in order to have the correct dogbone depth in the outdrive.

View attachment 47626

Uses all stock bearings.

View attachment 47627

Then I used a 8.7mm wide spacer behind the hex, the Losi stub axle is longer.

View attachment 47628

Connected.

View attachment 47629

Fits like a glove.

View attachment 47630
You are killing it what a great post I've long wondered how well it would do. RC bashing the kraton has one and bashes it.
 

amateurhour

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Well done, thanks for sharing. I really like the breakdown comparisons to the tekno stuff. I’ll definitely be watching this build. I’ve read your teckno builds and I can’t wait to see how this mugen turns out. 🍿
 

0verkill

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Fits perfect (y)

Then I drilled two 4mm holes in the chassis.

339603D9-48E8-4396-AF60-8D6F8AAD70F2.jpeg

798291C3-5F33-4E41-B1B8-707BB4C4F878.jpeg

Finished up the rest of the 5mm CVD’s.

B5432244-1761-4FF8-868B-2C5444BAFB13.jpeg

23574B18-49E6-4CAB-83F3-03ADBE227AFC.jpeg

Easy access diffs.

903E6072-EB3F-4E8F-94BB-123ED35B1698.jpeg

I’m running 2 shims on the ring gear side.

09A646E2-A2AF-4870-9872-5FD4E9C93C11.jpeg

46/10 gearing

25D44453-37AC-4DFA-A6EB-CCA7639163E1.jpeg

Tekno (left) vs Mugen (right)

The Tekno ring gear has wider teeth, but the pinion gear teeth looked pretty similar in size. The Mugen has a higher volume diff case.

03C79EC3-D17A-4076-8682-73E4FE460B69.jpeg
 
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0verkill

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Hey it has an Arrma part on it now :LOL:

M4 flanged non-serrated locknut black
AR708001

1A1D4E95-2623-4ACC-A5F3-3C4E4FD3AAFA.jpeg

44T steel spur, stock is 46T plastic.

F16C9110-F0C6-4E2F-B4C3-D0F5FC3B3857.jpeg

The motor insert has holes for both M4 and M3 screws.

C90BFAFD-CA9F-4167-AF8C-226F48D93B36.jpeg

The motor is secured with two M4 screws. I’ll be starting with a 17T pinion.

E0814CB6-48A6-418E-A181-75A642DA9851.jpeg

The truck comes with universals in the center which I won’t be using. Instead I picked up the recently released standard center driveshafts, thanks Pete @ Fierce RC Solutions. (y) It uses 88mm in the front and 161.5mm in the rear.

70160B92-623F-4920-A412-2D089FF1FD2A.jpeg
 

0verkill

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I modify all of my Castle MMX fan shrouds to use the Yeah Racing aluminum case fan. This is a much better fan for airflow and durability, and it stays on the whole time.

Mugen20.png

Mugen21.png

I got the electronics mounted up. The motor is a GoolRC 4076 2000kv with a pair of YR aluminum case fans.

Mugen24.png

Mugen23.png
 
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