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Old 09-12-2007, 09:59 PM   #1
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Default MBX5 compared to Kyosho 777 series

I am thinking of picking up one of these vehicles for a lipo conversion as they appear to be able to be had fairly cheap with parts, not needing anything insane, just durable and capable on the track.

Between the two, what do you see as the advantages and disadvantages of the vehicles?
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Old 09-12-2007, 10:43 PM   #2
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only draw back to an mbx5 is weight. they handle VERY well though and are pretty tough
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Old 09-13-2007, 09:09 AM   #3
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Thanks for the info. not too concerned about the weight, but good to know.
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Old 09-13-2007, 01:05 PM   #4
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use washers (6 total) takes care of the bump steer
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Old 09-13-2007, 04:58 PM   #5
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The Mugen will be cheaper to buy parts for than the Kcar. The Losi 8 or the soon comming RC-8 would both be lighter. I know you said you were not worried about weight but you should always be worried about it because weight costs power & speed. Just changing to titanium screws & composite pivot balls on my Mugen made it noticably faster. I ran Kyosho's for a long time & the cost of parts made me move on to Mugen which was tougher anyway.
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Old 09-13-2007, 05:08 PM   #6
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In my area Mugen parts are harder to find than Kyosho. I still have the original rear arms in my 777 after almost three years of racing and still no slop.

About weight, it is always a good idea to keep the weight down whenever possible. However, if you are doing the conversion yourself and making your own brackets and parts then you may want to start with the lightest platform possible.
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Old 09-13-2007, 05:43 PM   #7
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I am doing a new MBX5R brushless conversion right now. I have been running the Mugen cars since 2004 and currently own a MBX5R and MBX5T Prospec. So that is why I chose to do the Mugen. The only issue is the center diff. I used the stock Mugen center diff but had Dan from RC Product Designs make me a custom mount to keep the Mugen diff and allow for a 51T plastic spur gear. The standard MBX5 conversion kit he sells though uses a complete Kyosho center diff with Kyosho 46T plastic spur. I used the 51T and Mugen diff for several reasons, but just wanted to point that out to you.

So if you go with the Kyosho kit, you'll be able to keep everything Kyosho and they make a 46T plastic spur.

But if you are starting from scratch, I would go with the Losi 8ight for several reasons.

First it is much lighter.

Second the driveline is SUPER smooth.

Third the Kyosho 46T spur gear bolts right on to the center diff.

Fourth since the Rx box is configured differently the Rx and BEC can be nicely housed in the stock radio box. On the Mugen or Kyosho you'll have to stick it somewhere or make something custom to house the components.

Fifth the motor is more centered on the Losi 8ight buggy so the center diff has been offset. With the Lipo/brushless conversion this means the heaviest component (Lipo at 490 grams if using the MaxAmps 6,000mah Lipo) is more centered and the car should be better balanced since the motor is only about 220 grams and the servo and Rx box weigh very little.

Best of luck with your conversion,
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Old 09-13-2007, 07:52 PM   #8
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Thanks for the info. I may have to reconsider my vehicle selection then.
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Old 09-24-2007, 09:05 PM   #9
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Tony,

I just bought a converted MBX5, price was excellent to start with, so any tips you can give me would be great. Its a standard MBX5, the one Paul_67 had.
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