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Old 05-30-2015, 04:13 PM   #766
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nice when it's brand new !
do you have more pics ? it lacks of mbx7r eco pics !
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Old 05-30-2015, 07:24 PM   #767
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Another new MBX7R Eco owner chiming in. It's my first true e-buggy kit & Mugen product, and I have to say...it was a pleasure to build.

I do have one question. For those of us looking for a bit more acceleration, would it be advisable to run the optional 42/12 gearing? I'm currently running 16t pinion with the stock 46t spur.
Not sure what diff fluids your running but might change them up. I was running 7/7/3 and switched to 7/10/3 it felt much better.
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Old 05-31-2015, 10:32 AM   #768
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Anyone run the AKA Gridirons and compare the Gridiron 2's? Do you have a preference for a hard dirt track which is usually loose.
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Old 06-01-2015, 05:01 AM   #769
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Has anybody ran this on carpet? There's a somewhat local small outdoor carpet track and I was looking for a basic setup. Looked online and can't seem to find anything. Thanks
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Old 06-01-2015, 01:15 PM   #770
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My build is stock. Got lazy and just went with a blue body with white stripe down the middle.

Ordered up a 44t spur, and will mate with the 16t spur. I know that this will decrease my acceleration now, but I have future plans to run the front/rear diffs with the 42/12 gears in the near future.

I also went ahead and installed the delrin pillow ball retainers from M2C. The plastic ones seem to stick a bit when returning from full lock, and the delrin ones fixed that right up.

Other than that, I'm pretty happy. We're in the middle of closing a house, so my time is mostly spent looking at papers during the weekends. I might give it a good run at a baseball field across the street from me sometime this week.

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Old 06-03-2015, 04:32 PM   #771
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Anyone race the Losi previous to 7r? I have ran Losi for a while and the mbx6 and 7.
What advantages of 7r over losi or even the mbx7. Most locals run mugen and even a few have switched from Losi to 7r. Thanks. I have a 7 r on the way.
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Old 06-04-2015, 01:32 PM   #772
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Originally Posted by patrick lsp View Post
Anyone race the Losi previous to 7r? I have ran Losi for a while and the mbx6 and 7.
What advantages of 7r over losi or even the mbx7. Most locals run mugen and even a few have switched from Losi to 7r. Thanks. I have a 7 r on the way.
I had a regular MBX7 eco last year, not the R, and switched over the winter to the TLR 8ight3.0 and after three races and a few nights of practice I sold it and ordered a new 7R eco kit. The TLR buggy would turn on a dime off power which for higher grip tracks I'm sure would be a huge bonus but for the outdoor dirt I race on, the Mugen was more stable and overall easier to drive. The TLR just lacked traction. I tried everything under the sun from diff fluids to tires to shock positions to springs and couldn't find a combination that seemed better than the last. I drove a friends MBX7R that he had just built to kit setup and was faster within 3 laps than I was with my TLR.
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Old 06-04-2015, 05:51 PM   #773
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Sweet. I drove a buddies 7r . Track was dry and loose but car felt ok. He and I drive a lot different. So I'm sure with some seat time I can dial it in. Everyone like kit setup in diffs? I like all the turn in off power I can get and the rear to start rotation on its own. Usually finish the turn on the gas. Lots of 180s on my track and one short sweeper. Any need to break in diffs before running like the Losi? Any suggestions to change for really dry loose conditions?
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Old 06-04-2015, 08:19 PM   #774
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Bought a 4s 5500 turnigy hard case lips and realized its way too big and doesn't fit in the stock battery case

Do I need a special size 4s battery? Anyone know of any 4s batteries that fit?

Last edited by Photocycler; 06-04-2015 at 09:19 PM.
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Old 06-04-2015, 09:23 PM   #775
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Bought a 4s 5500 turnigy hard case lips and realized its way too big and doesn't fit in the stock battery case

Do I need a special size 4s battery? Anyone know of any 4s batteries that fit?
Anything but the turnigy will fit.
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Old 06-04-2015, 10:21 PM   #776
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sounds like the SMC 6500 is the way to go.
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Last edited by Photocycler; 06-05-2015 at 12:10 AM.
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Old 06-05-2015, 12:19 PM   #777
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sent mugen 2 emails about rubbing but got no reply. Anyone heard a word from them?
pic from another user but i got the same issue

http://www.rctech.net/forum/attachme...414_170929.jpg
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Old 06-05-2015, 12:46 PM   #778
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Has anybody ran this on carpet? There's a somewhat local small outdoor carpet track and I was looking for a basic setup. Looked online and can't seem to find anything. Thanks
Yes. we have same track. Russia, Saint-Petersburg.
I'm race in this track many times, last in Russian Cup'14, but 7, not 7R. i.m recommended Schumacher MiniPin tires, yellow compound, cut one inner and one- or two outer lines pin in front. Not use underdraven gearing (42/12 conical). Stock setup as base. more harder ammo and diff 10-10-5(7).
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Old 06-05-2015, 02:30 PM   #779
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nice track ! where did you get the carpet ?
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Old 06-05-2015, 04:29 PM   #780
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sent mugen 2 emails about rubbing but got no reply. Anyone heard a word from them?
pic from another user but i got the same issue

http://www.rctech.net/forum/attachme...414_170929.jpg
Mine rubbed there and the steering links contacted the sway bars.
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