Mugen MTX-4R

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Old 03-03-2008, 08:16 AM
  #1261  
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Questions?? high and low roll center

How do you change the roll center in the front for the mtx4r
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Old 03-03-2008, 08:37 AM
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By adding or removing the spacers under the front upper arm carriers.

Race you later
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Old 03-04-2008, 10:30 AM
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Default Rebuilding question

Hey Guys/Gals,

I am looking to rebuild the my car for the upcoming year. I am going to ditch the current chassis for a 4mm and add some new bearing all around. Any other suggestions to get the car ready?
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Old 03-04-2008, 10:50 AM
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Originally Posted by va_connoisseur View Post
Hey Guys/Gals,

I am looking to rebuild the my car for the upcoming year. I am going to ditch the current chassis for a 4mm and add some new bearing all around. Any other suggestions to get the car ready?
I would also consider changing the front and rear bulkheads since your gonna rebuild. This will make your car feel a little more tighter just because the whole suspension/differential assembly is attached to the bulkheads. I usually change out my bulkheads at least 3 times per year if im racing 2-3 times per month. Hope this helps.
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Old 03-04-2008, 10:56 AM
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Originally Posted by Roger View Post
I would also consider changing the front and rear bulkheads since your gonna rebuild. This will make your car feel a little more tighter just because the whole suspension/differential assembly is attached to the bulkheads. I usually change out my bulkheads at least 3 times per year if im racing 2-3 times per month. Hope this helps.
Thanks for the info. I will look through my car parts and see if I have some.
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Old 03-06-2008, 04:22 PM
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what belts seem to hold up the best and perfered ones to run the rubber or urathne
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Old 03-06-2008, 04:31 PM
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So for the rubber are holding up for me
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Old 03-06-2008, 09:12 PM
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Default Belts

front and rear urethane
rubber for the side

I have tried the Kawahara Kevlar belts didn't think much of them.
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Old 03-07-2008, 01:20 AM
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Originally Posted by chippy View Post
front and rear urethane
rubber for the side

I have tried the Kawahara Kevlar belts didn't think much of them.
+1 good combo
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Old 03-07-2008, 03:48 PM
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how do I tell the diiference between rubber and urathane? What does the mtx4r come with
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Old 03-07-2008, 04:44 PM
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Originally Posted by tony montana View Post
how do I tell the diiference between rubber and urathane? What does the mtx4r come with
Rubber
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Old 03-07-2008, 04:47 PM
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Originally Posted by tony montana View Post
how do I tell the diiference between rubber and urathane? What does the mtx4r come with
The rubber belts have a dull appearance
Urethane are shiny
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Old 03-08-2008, 09:21 AM
  #1273  
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congrats to BRIAN THOMAS on his TQ & win with his MTX4R in HAWII GOOD JOD
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Old 03-08-2008, 02:22 PM
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This is my first Mugen/on road kit so just bear with me here. So I just finished installing the engine and all of the gears and everything look fine but I have one question--let me try and explain.

Ok--so the car is sitting flat on the ground and I push it forward, while pushing forward I can hold the spur gears still with my thumb and the car still rolls.

If I roll the car backwards I cannot hold the spur gears still without stopping the car.

Does this sound right? I am positive that I put everything together the right way so I just want to make sure I am doing everything right.

Here is a video that I just did demonstrating what I am talking about. Sorry for the bad lighting but you can see that I can hold the spur gears still and still move the car forward.




Thanks for any help...

Last edited by Nitrorea; 03-08-2008 at 02:34 PM.
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Old 03-08-2008, 02:58 PM
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It's normal due to the "one way" bearing in the first gear housing.
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