Mugen MBX4-RR Conversion!

[BL_RV0]

Hey guys, new project here. Just bought this:
http://www.rcuniverse.com/market/item.cfm?itemId=412096
Planned setup will be: Medusa 36-50-2200, MM, 5s on 12/46 gearing with the Mugen MBX5 mount and custom battery tray. Here's the exported values.
Differential Ratio: 3.3333333333333335
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 12
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 4.6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.007
Spur/Pinion Ratio: 3.83 : 1
Total Ratio: 12.77778 : 1
Tire Circumference (inches): 14.45 inches (367.06 mm)
Total Motor Speed: 40700 RPM
Vehicle Speed: 43.59 mph (70.02 km/h)
Estimated Adjusted Speed: 41 mph (66 km/h) - 6% loss
Effective KV Value: 2200
KT constant: 0.61 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

Give me your opinions. Pics will be taken upon arrival.

[BL_RV0]

Do you guys know if the Mugen MBX5 mount is compatible with the MBX4?

[Takedown]

DAMN YOU! I just had dibs on that same buggy... Anyways good luck with the conversion. Looks to be yet another killer setup!

[BL_RV0]

Thanks?

[Takedown]

It was a compliment. Didnt mean to be harsh but that was one helluva deal!

[BL_RV0]

I know. Just trying to "spark come interest." I really hope the MBX5 mount works with the MBX4.

wow that was a good deal, and you got the noisey engine to sell off

[Matthew_Armeni]

Dude, 5s with the Medusa 2200kv 50mm will be insane! You'd be better off running 4s, it'll still be plenty fast and torquey. It's what I'm running in my 8ight buggy and it's a great setup. If you already have 4s batteries give them a try before you go 5s.

[BL_RV0]

Originally Posted by Matthew_Armeni

Dude, 5s with the Medusa 2200kv 50mm will be insane! You'd be better off running 4s, it'll still be plenty fast and torquey. It's what I'm running in my 8ight buggy and it's a great setup. If you already have 4s batteries give them a try before you go 5s.

That's the thing. I don't have any 4s. I'm still debating between the 36-50-2200 and the 36-60-2000. Originally I wanted to go with the 36-50-2200 because it's still only spinning at ~39k RPM. The 36-60-2000 is spinning at ~35k rpm, it woudn't provide much over nitro probably. Has anyone run buggy badlands? They look like a great all-around tire. Any input?

[Matthew_Armeni]

Originally Posted by BL_RV0

That's the thing. I don't have any 4s. I'm still debating between the 36-50-2200 and the 36-60-2000. Originally I wanted to go with the 36-50-2200 because it's still only spinning at ~39k RPM. The 36-60-2000 is spinning at ~35k rpm, it woudn't provide much over nitro probably. Has anyone run buggy badlands? They look like a great all-around tire. Any input?

Only spinning at 39k? Dude, that's really fast. I usually shoot for 28k to 33k for my setups and I still beat the nitro's. The brushless motors have instant torque that the nitro's don't have, so that high end isn't always needed, especially when you only hit top speed once or twice on a track.
But if you already have 5s packs I'd go with the 2000-60, it'll prolly be a little more efficient than the 50 because it'll have an easier time pulling the buggy around, and it's only 1 ounce heavier than the 50.
Normally I'd recommend the 1600-60 for 5s (which would put you at 29,600 and give you great run times) but if you really wanna go that fast stay with the 2000.

[BL_RV0]

What kind of runtimes would I get with the 2000? The 1600?

[BL_RV0]

Originally Posted by big greg

wow that was a good deal, and you got the noisey engine to sell off

Actually, the engine did not come with the truck.

[BL_RV0]

Ok guys, did a bit of work today. Got the front shocks mounted, as well as the servo and receiver. Take a look:



(Sorry about the next picture, it's terrible. I was lazy and didn't bother focusing.)

[BL_RV0]

Ordered all the parts needed to finish!

[BL_RV0]

Got my pinion, hopefully the conversion parts and MM come soon.