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Winter Project

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basketcase45

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OK Here's the plan........Make one bad*** Electric Brushless REVO!!!!! I got the first part the other day, a chassis, off Ebay for $10.66. I plan on getting most of my parts off Ebay I have had really good luck getting things there. Anywho...next will be the bulkheads, arms, knuckles, and so on. I know of one issue I'll have to deal with will be the transmission, and the one-way bearing inside....It won't let the Motor act as a brake. Ihave considered two ways around this.....1. use a tranny from an E-maxx...but I would need special CVD's, or would traxxas halfshafts work? Could they handle the power? Could I even fit the E-maxx Tranny in a REVO? What about the Savage 3-speed tranny? Could I make it fit?
2. keep the brake servo activated with special wiring.

Another hurdle to overcome will be battery placement. I plan on making several "saddle" type packs, so they won't take as much space as 6-cell packs. I'll make a special wiring harness to hook them all up. I have also considered using Li-po batteries to save weight and space, but they are very expensive, and I am not set up for them yet.

There will be other things to deal with, I'm sure, I've tried Nitro this year, and It's a blast allright, but for racing-- give me an Electric! Clean, Quiet, Reliable power.

Any way let me know what you guys think, Mark
 
Hey Mark, nice to see you over here again. Hey we are still running at Slots southside and there's also the Last Blast coming up Oct 14-16th In Lynn. Anyway, I'm not much up on electrics so I can't help ya there but put the brakes on your winter project and come run races, winter ain't here yet!
 
Check this out

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www.kershawdesigns.com ........I saw a brushless E-maxx from these guys that tore ass on every MT on the track one day.....it looked like a nuclear bomb w/ all the cool gizmos the dude had on it to......they make a Revo conversion kit real cheap.....this is the dilema, that or a crawler....I'm so up in th eair on what the next project I want to do is.....what's your budget on this? it's cheaper if you buy a lot of the stuff from one vendor to save shipping, that's what gets you doing it a part at a time.....
 
I don't really have a "budjet" on this project.....Just gonna pick up a part here and there as I am able to get good deals on them, not in too much of a hurry. I checked out the Chassis conversion kit...... way too expensive! And besides, I own a dremel tool - lol
 
I know most of the electric conversions rely on the E-maxx tranny so you might want to pick one up and see how to stuff it in.....the Kershaw conversion I thought was only 150 if you have the revo already........the 500 something was for the full revo RTR.....
 
here is an electic revo i found, and it looks like the they are using the stock tranny. doesen't look as though he is finished but it looks like a good design.
link to revo
 
yea there is a few ppl out who have converted there revo to ELECTRIC... check out www.rc-monster.com there is a few ppl there.. and MIKE is in the process of makeing a CONVERSION for it. outa be a sweet ass setup.
 
What I would do, is get the motor situated properly, it doesn't sound like that would be a problem for you.

Now, the brakes. I'd just use the 3rd channel on the TQ3 (assuming you will have the stock TX/RX) Set it up so that when you flip the thumb switch you just set the brakes. The only problem is you cannot control how much power you're applying to the brakes, so set them to a happy medium. Also, this type of setup would call for the forward only conversion.

I'm not too familiar with the revo tranny, but you may be able to "bypass" the one-way setup which would save you alot of headache. Personally, I wouldn't try to "rig" another tranny to fit, the revo trans can be modified.

Good luck on your venture.
 
there are a few ppl doing it with a EMAXX TRANNY...... they say its the easier route..... might be the best way also....
 
the guys that used the stock tranny seem to blow stuff up inside em....Busted why would you need to even use the brake if you have an electric motor....they can be stopped via the ESC.......take the whole brake and servo set up out of it.....a good friend of mine is really into these electric MT conversions lately...he's going to make a savage 3 speed or the Revo soon......I've seen the Kershaw stuff and believe me it's well woth the cash to save you loads of headaches.....still an electric Revo w/ that fiergo (or whatever that german co is) brushless motor would just flat out kick ass......could you imagine kicking everybodies ass in th eMT class w/ a RC making no noise???? for a pit stop you just stop in and touch it to be legal.....in the main you would just have to lay down a buttload of laps before your batts die and hope noone catches up......the crawlers look cool but so do these conversions.....damn toys always look the like it's the best til you have one...then the other one looks better....
 
Somebody should make a quick change batt compartment. This way you could take the same time as the nitro mt's in a pitstop and change your batts.
 
WOAH!!!! sounds like your defining a new race class there buddy....I think they run alot more than 6 cell packs though...I know the E-maxx can use 20 cells w/ chassis mods.....might be heavy but man it has punch
 
There has to be a way to do it. Are there any rules that specify you can't race electric MT's vs Nitor MT's? Unless its specified I don't see why not.
 
The problem with running an Electric vs. nitro like in a 45 minute main for example, is the heat buildup. By the time it is done running a 5 minute race, it is very hot. At the end of 45 min. ( if it could go that long) it would desolder the wires and connections it would be so hot. I guess you could counter that with special cooling fans, but that is more weight, and voltage draw- not really practical. At the track I run on, they have 5 min. races so it wouldn't be a factor.
 

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