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Mugen MTC1

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Old 03-13-2018, 09:34 AM   -   Wikipost
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Mugen MTC1 Wiki:

MTC1 Manual on the Mugen Web Site.

Correction for the manual




The max/min tooth count of the spur and pinion combined.

64p = 127 to 164 total teeth


48p = 95 to 120 total teeth


People who have spare spur gears left over from other cars which they wish to use but can only utilize 2 of the 4 mounting holes, here's neat trick from MKAH to drill 2 more holes precisely in the spur gear:

1.Dismantle the Spur Holder and mount XRAY Spur with two screws.

2.If you have take a 3mm Top Setting Screw

3.Get the Top Screw in the first free thread to the Spur Holder from the other side until it touches the Spur a litle bit.
Make the same with the second free Thread.


4.Dismantle Top set Srew an the two screws witch holds the Spur on the Holder.
Now you see two marks absolutely central.


5. Take an 3mm Driller an Drill the holes at the marked places

6.Mount the Spur with the two old and two new holes on the Spur.


Spur Gears known to fit the gear holder with the correct hole pattern

1. Axon
2. Panaracer


Upper front arm hinge pin set screw tip (or any of the kit set screws):

When installing the set screw run the set screw in until you can see it come into the hinge pin gap. Back the screw out and make sure there is no flashing in the way and then the screw. Now slide the pin in and you should hit the pin and come to a dead stop. It will be a solid feel and not sloppy like it will not tighten which is caused by any loose plastic.

Hara's Setup


Robert Pietsch's Latest Carpet Setup

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Old 09-12-2017, 10:04 PM
  #691  
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21gram diff, 18gram spool, 8gram dcj drives, makes for a bit less rotational mass than other cars, but not as light as my tc4.2 : I am down to 11gram diff, 8gram spool(minus bearings), 4gram aluminum dcjs front/3gram plastic cvds/alu axles rear... I hope to do battle very with my local mtc1 racers soon, and good job mugen at lowering the rotational mass of the mtc1 vs the other competitors....
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Old 09-13-2017, 12:57 AM
  #692  
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Mugen has managed to pull the trick by going down to 34 teeth diff pulleys (this is almost back to '90s levels), lowering the bulkheads, top decks and shock towers in the process as well.

It is also important to remember that the radius of the spinning stuff is more important than the mass, because the inertia momentum goes up with the square of the radius, but only linearly with the mass.
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Old 09-13-2017, 12:49 PM
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Originally Posted by niznai View Post
Mugen has managed to pull the trick by going down to 34 teeth diff pulleys (this is almost back to '90s levels), lowering the bulkheads, top decks and shock towers in the process as well.

It is also important to remember that the radius of the spinning stuff is more important than the mass, because the inertia momentum goes up with the square of the radius, but only linearly with the mass.
I'm with you on this, but still wonder why this didn't work with BD8.
They had to go back to the 40T pulleys to be competitive in stock and mod.

Roberts performance at the ETS showed that the concept works.

Anyway the MTC1 is a grey car.
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Old 09-13-2017, 03:34 PM
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Originally Posted by silden View Post
I'm with you on this, but still wonder why this didn't work with BD8.
They had to go back to the 40T pulleys to be competitive in stock and mod.

Roberts performance at the ETS showed that the concept works.

Anyway the MTC1 is a grey car.
What is the pitch of the teeth in the belt and pulley? Maybe they solved the belt bind issue on the smaller pulley? Less internal drag on the system would be a great benefit.
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Old 09-13-2017, 04:23 PM
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Originally Posted by liljohn1064 View Post
What is the pitch of the teeth in the belt and pulley? Maybe they solved the belt bind issue on the smaller pulley? Less internal drag on the system would be a great benefit.
The BD8 has a 3mm pitch S3M beld as the most TC out there.
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Old 09-13-2017, 04:31 PM
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Originally Posted by silden View Post
I'm with you on this, but still wonder why this didn't work with BD8.
They had to go back to the 40T pulleys to be competitive in stock and mod.

Roberts performance at the ETS showed that the concept works.

Anyway the MTC1 is a grey car.
Grey?!

When you say it didn't work, what do you mean?

Who knows what happened there? Maybe the quality was not right, other factors, whatever. I am not aware of what you mean anyway.

But if you look at the recently announced Xray for 2018, it will have really low shocks as well, so I imagine it is not the design per se that does not work (and on principle alone any design can work).
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Old 09-13-2017, 05:19 PM
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Originally Posted by silden View Post
I'm with you on this, but still wonder why this didn't work with BD8.
They had to go back to the 40T pulleys to be competitive in stock and mod.

Roberts performance at the ETS showed that the concept works.

Anyway the MTC1 is a grey car.
Isn't the BD8 the reigning world champion? That's quite far from not working.
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Old 09-13-2017, 05:43 PM
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My mtc1 kit didn't come with the correction papers like kentech showed in his build blog. Anybody know where i can find them??
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Old 09-13-2017, 05:50 PM
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I had the opportunity to run my Mugen last night at Cal Raceway an asphalt track. I had a fun night shaking down the car. I had my friend with me with a Mugen as well. Lots of guys stopping by the pit to check out the car. Lots of questions and ohhhhh's and awwww"s. The car was a little loose in rear at first. The track is sprayed with soda and it seemed it did not get a chance to heat up and get sticky right away. The traction got better as guys ran on the track. When the grip came up, the car worked great. I am running a box stock 17.5 setup for asphalt. I will try a couple of things this weekend at the Tamiya USA track for the next race. I might try 5k in the rear diff and/or go to 3.5 rear toe for Tamiya as it is not sprayed with anything. The steering was good and handling was great. The rear diff did not leak a drop. I look forward to running it again.
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Old 09-13-2017, 08:45 PM
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Been having this chat in Aussie in various locations - interested to hear what this thread thinks

IFMAR RULE 5.0.5: The chassis must not be shaped to gain an aerodynamic advantage. In principle, the underside of the chassis must be flat and parallel to the ground along the entire length of the body shell. Aerodynamic shaped parts (splitters/diffusers/tunnels/etc.) may not be fitted to the chassis.
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Old 09-13-2017, 09:47 PM
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Originally Posted by gigaplex View Post
Isn't the BD8 the reigning world champion? That's quite far from not working.
He was referring to 34T pulley that they used to use.
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Old 09-13-2017, 09:48 PM
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Originally Posted by snuvet75 View Post
He was referring to 34T pulley that they used to use.
I'm aware. The 34T pulleys were good enough to get the world title.
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Old 09-13-2017, 10:01 PM
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Originally Posted by silden View Post
I'm with you on this, but still wonder why this didn't work with BD8.
They had to go back to the 40T pulleys to be competitive in stock and mod.

Roberts performance at the ETS showed that the concept works.

Anyway the MTC1 is a grey car.

Didn't realise you were talking about pulleys.

I didn't know Yokomo tried smaller sized pulleys in the BD8. What size were they? And what do you mean it didn't work? What size do they use now? Last I know, I think it's BD8 2014 when they were running 40 tooth (or is that 41? - can't remember).
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Old 09-13-2017, 10:37 PM
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Originally Posted by niznai View Post
Didn't realise you were talking about pulleys.

I didn't know Yokomo tried smaller sized pulleys in the BD8. What size were they? And what do you mean it didn't work? What size do they use now? Last I know, I think it's BD8 2014 when they were running 40 tooth (or is that 41? - can't remember).
The BD7'16 and BD8'17 came with the 34T diff pulleys. Ronald won the worlds and one ETS round on carpet. Yokomo changed back to the 40T pulleys at the ready race and the car was way more competitive and Ronald won the Euros.

That is what I meant that the 34 tooth pulley did not workout as expected on the BD8. This doesn't mean that it doesn't work on the MTC1.

BTW we are running the BD8 with the 34T pulleys and like it like it is.
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Old 09-13-2017, 10:48 PM
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Originally Posted by cplus View Post
Been having this chat in Aussie in various locations - interested to hear what this thread thinks

IFMAR RULE 5.0.5: The chassis must not be shaped to gain an aerodynamic advantage. In principle, the underside of the chassis must be flat and parallel to the ground along the entire length of the body shell. Aerodynamic shaped parts (splitters/diffusers/tunnels/etc.) may not be fitted to the chassis.
This is interesting - could argue what the chassis is. Does the front bumper constitute part of the chassis? Or would we be actually talking about the carbon part.

Does the same IFMAR rule apply to 1/8th on-road? Because the front bumpers there have aero in them and have done at least in the last gen
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