Best motor for 3.3 Revo conversion?
 

Hello,

I have a fully functional 3.3 conversion with my MMM running a 9XL, nearly exclusively for bashing.

I'm ready to upgrade that motor and was wondering what's the best motor for it. (I'm using 5S Lipos if it changes anything.)

Thanks

Loa

P.S. I posted a similar question in the Castle Creations forum, but decided to widen the search.

I run a 1520 in my mbx5T on 5s and it is perfect. So the same would work well in the Revo

I thought about this some more...I am not sure that the 1520 castle motor will fit in the Revo due to clearance issues. Another option is a 1700 Tekin truggy motor. Mike sells these in the store.

Definitely go for the Castle 2200kv motor. Can be had for $110 new if you look around. On 5s it should be insane. Me and ChadWorkz both run that with the MMM ESC in our conversions, and love em (on 4s)

Wouldn't a lower kv motor be better for bashing?

Loa

MMM Combo will be fine...

Be careful with longer motors as IIRC you would get interference with rear arm/tower...

You could try a 1518 CC motor but the 1515 CC motor will work great to...

The CC/Neu 2200kV motor is awesome in a Revo 3.3 BL conversion, and all you need to do to clear the XL motors is run the Traxxas Extended-Wheelbase rear a-arm kit. As for the kV of the 2200 and 5S, just gear down a little bit and you will have a very efficient system...higher voltage and lower gearing is more efficient than lower voltage and higher gearing. I am geared for 40mph on 4S with the CC/Neu 2200kV motor and it is PERFECT!

I have a vantage chassis, and tekno kit ready to go. I did have the 2200 motor in, and it did interfere with my rpm arms. All I did to fix that was basically do some sanding on the arm, I just pushed the radius back a bit, it works awsome. Im looking forward to seeing it go :)

I checked the measurements on my system, and even with the added length and width of the 2200, it's not going to touch the rear arms. I'm using Mike's motor mount.

Also, I know that the 2200 has a great reputation, but I don't understand why the 1518 1Y 1800 wouldn't be better suited for bashing.

Loa

I cant answer your question about the 1800kv, I am new to brushless, and the cc 2200kv setup is my first taste :)

I would assume the 1800kv wouldnt be as brutal as the 2200 is.

Teh 1800kv sytem would be way too torque in my opinion. And why can't you understand the the 2200 system is perfect for bashing! Why do you think Traxxas choseit in their ERBE?

Maybe because the 1518 1Y 1800 is an entire YEAR newer than the ERBE?

Loa

I dont think the age matters.. Muggydude has a point about the torque. The 2200kv can eat parts with no troubles at all, the 1800kv would have alot more torque.. I dont know about you, but Ive chewed 5 rear diffs already in my revo. I did shim this one, my 6th, and so far so good. I only run 6s tho, so that could be my problem :lol:

Shim?

Loa

Process of shimming...DUH!:lol: J/k
It's putting spacers/very thin washers in the diffs so they mesh correctly.

The 2200kV motor, on 5S, with low gearing is the way to go...and I am glad you are using Mike's Revo Motor-Mount, it is the best there is...that Tekno mount is pure crap, all three versions.

I didnt mean to ruffle any feathers, I bought the mount 2 years ago, when I first saw a conversion. I didnt know about this site back then :) And thanks for the feed back on the mount, I never did like where it put the motor. And I didnt like the fact that to use a normal pinion, I would have to buy spacers and screws to get the motor to sit in the right spot.

No feathers ruffled, just saying that the Tekno BL Revo Motor-Mounts suck, heh! I like pretty much all of their other stuff, especially their Revo Swaybars!

Thx

How does 16/40 sound?

Loa

Enter the numbers in BrianG's Speed Calculator and see what you get...

I get good results. It would be slightly slower than my 9XL on 20/38, which is perfect because current speeds are too great.

All I'll have to do is correct the acceleration curve for bashing.

Thanks for the help everybody, the CC-Neu 2200 has been ordered.


Loa

Chad, I have to disagree with you there. The Rc Monster mount is fantastic, but I do not like how the motor area is free from the main chassis without any bracing. The Tekno mount uses the stock revo motor mounts, which eliminates almost any flex at all, but their blue versions do not accept the 2200kv motor with a long shank pinion, which is also not good. So I do agree that the RC Monster mount is better, but the tekno isn't crap. Aslo, why do you hate tekno swaybars, so far they have been graeaty for me.

Note that I said I especially like their swaybars? I run them on my truck, my Dad's truck, and got a set for the nitro Revo I am going to be building at some point (I have a couple projects to do first).

Back to the motor-mounts...

I do not feel that the stock nitro engine-mount is needed to create a secure mount, and in fact, I think having to use it with the Tekno mount is just adding to the reasons why I don't like it.

The stock chassis, without the nitro engine-mount, and Mike's RCM motor-mount is more than strong enough. I don't know if you know it or not, but Mike's original Revo motor-mount actually used the nitro engine-mount just like the Tekno mount does, but Mike realized that it just wasn't needed, and switched to a mount that bolts directly to the chassis, without the nitro engine-mount installed at all. If Mike thinks that the nitro engine-mount isn't needed, I believe him, but I have always thought the nitro engine-mount was never needed, even before I found out about Mike's original Revo motor-mount.

The only "extra" thing that is needed when using Mike's motor-mount is the little stock chassis-brace that mounts under where the motor-mount mounts. Instead of using the stock aluminum one on my Revo, I made my own out of carbon-fiber.

Maybe calling Tekno's motor-mount "crap" was a bit strong, and I apologize for that, but it is my opinion that it is just not good at all...and even if this wasn't Mike's forums, I would still say that the RCM motor-mount is the best electric motor-mount available, and I would recommend it to anyone converting their nitro Revo to electric/brushless.