Redcat Rampage MT Brushless Conversion.

[aqwut]

Hello, finally had a chance to pick up my newly used rampage MT today.

The Plan...
Motor: Lehner 3080-8 (approximately 750KV)..
ESC: Schulze 40.300WK and/or Castle SHV 240
Batteries: 12S 5000mAh 25C PolyQuest (Maybe some 35C Hyperions in the near future)

Here's a comparison shot of the Rampage vs a Revo... The wheels on that thing just makes it look huge. But this sucker is much heavier than a Firehammer or a Baja 5B..


And the conversion begins... it won't be anything super amazing or or precise... I'll do the best I can with a bandsaw, drill press and files.



This is how I would like the motor to sit... This way, I would be able to use stock gearing... I'll have to figure a way on how to mount this motor in this position.. I already have an idea in mind....



I'll keep posting updates of the progress.... I'm hoping to finish this within a week... I just need someone to make me a sleeve.. that's all, I'll see if a buddy a work could do this...

[What's_nitro?]

Man, I hope that thing has some strong diffs. If so, I foresee a split drive cup in your future...

*edit* That sounds wrong... I don't mean I want you to split a drive cup, just that they're probably the next weakest link.

[BL_RV0]

Awesome...! Seems like the stock gearing would be too high of a ratio though.

[aqwut]

I'm not sure of the gear ratio...
I think the Diffs are 3:1, the Center Diff is 3:1... and with the 25T pinion/36T Spur.. 25T Transfer gear to the 24T center gear shaft...

I think it's a 12.44:1 Final Drive Ratio... So this is geared for about 60MPH..

[Ryu James]

good job aqwut. i havent been able to work on mine for the last couple weeks. i really dont have a lot left to do. just a lot of little stuff. hoping to get some done this week. keep us posted on how yours is coming along. cant wait to see how it does with the lehner.

[aqwut]

Originally Posted by Ryu James

good job aqwut. i havent been able to work on mine for the last couple weeks. i really dont have a lot left to do. just a lot of little stuff. hoping to get some done this week. keep us posted on how yours is coming along. cant wait to see how it does with the lehner.

Hurry and get yours done... I'll race ya to see who finishes first.....
What other little stuff do you have to do?..

[lutach]

Subscribed . This will be another great large scale addition to the ones already found here.

[aqwut]

went to pick up a plate of 1/4" aluminum today, 7" x 24".. not 6061 like I wanted, but will do for now...


Plan is to cut a peice that will fit inbetween the stock mount and the Brushless motor.. I will post pictures when I'm done.. I should have this done by todays end...

[aqwut]

Now I had to cut the sheet to size that I needed, I made it a little bit bigger because you can always cut some off later... Made the mounting holes for the 3080 motor, and made sure everything was centered...







Now I had to make cut down the original sleeves to bolt the aluminum motor mount onto the stock Motor Mount...


The hard part is pretty much done.. All I have to do now is mount the motor and wait for the sleeve to come in... I had to cut the original clutch bell, because the sleeve/collet will all attach the 10mm LMT 3080 Shaft to the cut shaft from the bell shaft... Hard for me to explain.. here's what I did..

[Arct1k]

Beefy! :)

that motor is massive!

[scarletboa]

i expected that motor to be big, but that's just massive! you could power a bicycle to 80mph with that thing!

[aqwut]

well, you need a big motor for a big truck right... :)

[nitrostarter]

Boy that a man motor!

[A RC Dude]

I didn't even know that had a brushless RC motor that big! My goh! Need to put something like that in a......actually, i have no clue what....moped maybe? that would be fun! lol