Mugen MRX-4R

Old 06-27-2007, 04:01 AM
  #1231  
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constantly stripping gears with everything (gear mesh, shaft side play, etc...) set-up properly sounds like a one way problem. Clean the one way and re-lube it.
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Old 06-27-2007, 04:51 AM
  #1232  
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Default 7.4v lipo

do any of you run lipo batteries in ure 1/8 scales.do you guys recomend it or should i just run nimh 5 cell packs?thanx in advance
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Old 06-27-2007, 06:40 AM
  #1233  
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Originally Posted by Osiris 75
I started stripping the first gear recently. I practiced an entire day on the same gears, then all of the sudden I started stripping them. I thought it was my pinion gears, but my friend borrowed my engine, pinions included and he did not strip. I did notice my rear shaft was moving, so I tightened it down to where it would not move at all, but I still stripped.
Check your 2 speed shaft bearings. If they go you will strip gears because your mesh will vary.
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Old 06-27-2007, 07:21 AM
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Originally Posted by quietstorm76
Check your 2 speed shaft bearings. If they go you will strip gears because your mesh will vary.
Thanks guys, I'll give it a try!!
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Old 06-27-2007, 02:42 PM
  #1235  
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Default Lipo

I run lipos in my xr8 but in the mrx4r i don't because the battery that is designed for it has plenty of runtime with good servos. I would say a lipo would be better if they don't scale your car because it will be lighter and is under weight with a ni-mh battery. In any kind of racecar lighter is faster!
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Old 06-27-2007, 07:05 PM
  #1236  
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Side to side play should is adjusted by the pulley that runs the side belt. Lipo,s are light and so are Mugens. I run a ni-mih and a brass tray to keep the wieght low.
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Old 07-06-2007, 06:48 AM
  #1237  
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Default engine?

any1 try the MRT ninja as well as the eagle R9 from JP?really interested in either one them...
thanx in advance
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Old 07-06-2007, 07:13 AM
  #1238  
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Originally Posted by feroz
any1 try the MRT ninja as well as the eagle R9 from JP?really interested in either one them...
thanx in advance
I've been running the MRT...f'ing fast! Makes runtime, stays cool (maybe too cool sometimes) and pulls in every part of the track.

Don't know about the JP. Not sure how much it costs, but if its anything like what their prices used to be, then forget it.
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Old 07-08-2007, 08:39 AM
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Originally Posted by feroz
any1 try the MRT ninja as well as the eagle R9 from JP?really interested in either one them...
thanx in advance
You should try JP. JPs engine has lots of power.
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Old 07-09-2007, 01:46 AM
  #1240  
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Originally Posted by Johny
You should try JP. JPs engine has lots of power.
I've been running JP engines for some time.R03 ceramic R01 stock and maybe if all goes well,R9 as well
I just finished running in my XENON speedline from RB(abc version)Apparently,they run like hell.i'll just have to c for myself.i hope it goes as well as my C5,maybe better
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Old 07-15-2007, 07:36 PM
  #1241  
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Where r all my Mugen guys? The MRX4 R is a great car!!!! There has 2 b something 2 talk about?
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Old 07-15-2007, 10:30 PM
  #1242  
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Originally Posted by Pooh2
Where r all my Mugen guys? The MRX4 R is a great car!!!! There has 2 b something 2 talk about?
Hi there, yesterday I won 3rd place in B final 1/8 Indonesian National Series with my MRX4-R.

I remove the front stabiliser and the car turn very easy ( I'm talking about mid cornering and corner exit on full throttle ).
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Old 07-16-2007, 02:19 AM
  #1243  
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Originally Posted by asw7576
Hi there, yesterday I won 3rd place in B final 1/8 Indonesian National Series with my MRX4-R.

I remove the front stabiliser and the car turn very easy ( I'm talking about mid cornering and corner exit on full throttle ).

What body were you running? I've had problems with a mid corner push as well. I was using a Parma and with advise from Pooh I'm trying the Serpent/Central body. Never thought about removing the sway bar.
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Old 07-16-2007, 04:08 AM
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Originally Posted by quietstorm76
What body were you running? I've had problems with a mid corner push as well. I was using a Parma and with advise from Pooh I'm trying the Serpent/Central body. Never thought about removing the sway bar.
I'm using Serpent body.... don't know the real name.

I heard the new 1/8 protoform and kawahara are the best in business..... I haven't buy it yet.

I would test these for mid cornering push :
(1). Put the caster clips all the way front ( the caster is more lay down )
(2). Lay down front shocks to lowest setting ( more lay down )
(3). Change front spring to grey ( softer than white ).
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Old 07-16-2007, 05:11 AM
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Originally Posted by Pooh2
Where r all my Mugen guys? The MRX4 R is a great car!!!! There has 2 b something 2 talk about?
We're racing! And when a car like the MRX4R works this well, every time you go out, then there's nothing to discuss.

Except maybe how well you did. Good job asw7576!

What's good with you, Pooh?
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