Motor Help

[714 AP2]

So I got me a rtr wraith and trying to learn as much as possible. It seems through reading and searching, the stock motor fails sooner or later. I'm hoping someone can suggest a replacement. Mine is fine now, but I plan on taking my wraith several time in the coming months when I travel. I want to go ahead and by a backup so I'm not stranded. I don't need the absolute best, just better than stock. This is my 2nd rc vehicle and don't know much. If someone could suggest motor and all components I would need, that would be great. I'm still trying to learn what esc, bec, and other terms mean. I plan on running 2s lipo maybe 3s if new motor can handle.

[Tgates]

In mine I'm running a 21t Titan with 86/18 gearing every once in a while a little more wheel speed would be nice but other than that it's worked great tons of torque and it's only $20 But since it is in a 550 can you have to sand off about 1/8th inch from your link mount for it to fit but it doesn't seem to cause a fail point.

[Tgates]

Also this may help I know it seems like a lot but just read it there is a lot of good info in there. Choosing a motor and ESC for your Wraith - Gearing Added!

[714 AP2]

Being that I don't have a clue what to buy as far as piecing together, is there a combo with everything I would need? I've come across the Novak timbuk 2 brushless 13.5t system. Is it any good. Include everything I need to install and go? I'm not really out for speed, I have a rc8.2e for that. I would like torque and overall better setup than stock.

[Tgates]

With the Titan all you need is the motor it's plug and play on your factory esc it already has leads soldered on. On the Timbuktu system I have not run that particular system from Novak as they had some quality control issues at one time but I run two of their ballistic 550s in my sct's one on they're active 8 and one on a mmp and have never had an issue. One of the major deciding factors on what motor to choose is what do you want to do with it? Do you want to use it as a crawler or basher?

[714 AP2]

Crawl 70%
Trails 30%

[der ceej]

new gearing will help make the stock motor last longer, also the 27t axial motor is a decent cheap replacement at about $16

[Tgates]

Personally I'd suggest the Titan with something in between stock and my gearing for that. If you were to go brushless the most bulletproof setup you can get is the tekin pro 4 with either a mamba mad pro or rx8. The downside to going brushless is you need to upgrade your whole driveline because it's just simply not made for that kind of power if you are willing to spend the money check out Holmes hobbies 13t crawl master pro Holmes Hobbies LLC this is a great motor I've driven a wraith with it and it's super smooth with the power when you need it. Another thing is I see you were asking about your servo I run a hitec 7954sh and I love it but this is with stock unweighted wheels as soon as you start adding weight it's more and more taxing on your servo rule of thumb is pick out a servo with atleast 350 oz of torque. And no matter what you do go get yourself a bec you absolutely need it best bang for your buck is the castle creations 10amp bec.

[714 AP2]

Man I appreciate all the info. I'll have to study up exactly what a bec is and how to install. So should I change my stock gearing, if so to what?

For now with stock rtr motor, should I change gearing?

http://pages.ebay.com/link/?nav=item...d=390416815830

http://pages.ebay.com/link/?nav=item...d=390565819985

Would these work?

[Tgates]

I'd start by getting a 86 tooth spur gear because it gives you more adjustability on gearing first try it with the stock pinion and if it gets to hot go get an 18 tooth pinion and you'll be good, this is with the Titan if you do the holmes hobbies just use stock gearing.

[Tgates]

Yes drop the gearing if you want the motor to last 86/14 is a good spot

[wurster]

Im loving my Tekin 35 t pro hand wound with 54 14 32 p gears.great crawler and good wheel speed.

[Tgates]

Those would but I'd go with Robinson racing for atleast the pinion Robinson Racing 48P Pinion Gear (14T) [RRP1014] | RC Cars & Trucks - A Main Hobbies
And kimbrough for the spur Kimbrough 48P Spur Gear (87T) [KIM148] | RC Cars & Trucks - A Main Hobbies
that's who I've used and had great luck not stripping my gears

[3stage]

I have a stock RTR wraith as well. What I gathered from reading all the reviews is the 87 / 18 ratio will be a nice mix of speed / torque..

I bought the Robinson Racing 18T and 16T pinions and Axial 87T spur.

My goal gearing wise is to try and copy the stock gearing found in the SCX10 models, since those are designed more as stock crawlers. Those come with the Axial 27T motor and 87/20 (4.35 ratio) gearing. Stock tire is 4.3" tall. The RTR Wraith is a 20T motor with 80/20 (4.0 ratio) gears and 5.5" tires (seems way over geared when you compare the two).

To match the SCX10 gearing, you will need a higher ratio than 4.35 because the Wraith runs taller tires. 87/18 works out to a 4.83 ratio (and 87/16 works out to 5.44 ratio). My biggest fear in lowering the gearing is loosing out on top speed. I kinda like the speed on a stock Wraith but i know the factory tall gearing is placing high stress on the 20T brush motor.

Axial - New to RC

See that link for some nice technical articles on 'wheel speed vs torque' and 'gearing for larger tires'.

Originally Posted by 714 AP2

http://pages.ebay.com/link/?nav=item...d=390416815830

http://pages.ebay.com/link/?nav=item...d=390565819985

Would these work?

Note that 87/14 (6.21 ratio) is a huge change in gearing from stock, I would recommend you stick with the 80T spur IF you decide to go with the 14T pinion.

Gearing reduction will increase the life of motor

ESC is the Electronic speed control (for the motor). The Wraith has a Castle Creations unit which is very good.

BEC is a Battery Eliminator Circuit, which is basically a device that takes power from the main battery directly and then outputs a lower voltage to power other electronic devices, such as servos etc. That way one battery can power different devices with different voltage requirements. That way you can run an 11V motor with a 6V servo..

A nice BEC if you are interested.
Amazon.com: Castle Creations CC Bec 10A 6S Switching Regulator: Toys & Games

[wurster]

In my opinion if you are going to get new spur /pinion get 32 p much stronger than 48.p

[714 AP2]

Ok thanks. So the bec plugs into the receiver?

[Tgates]

You plug the bec into your 3rd channel on your receiver but first you need to disconnect the red wire on your esc or you will burn up the internal bec. A bec is very easy to do and look clean if you have a soldering iron and some heat shrink.

[3stage]

How To Wire A RC BEC How To Connect A BEC On Your RC Car or Truck - YouTube

[714 AP2]

So if you upgraded motor/esc, do u still add a bec? Or is there a esc with satisfactory bec built in?

[redsawacs]

Motor help, check out poat 130.
Team Brood Motor Tech Thread

If you upgrade your servo, you need a BEC. There is no ESC on the market that can come close to the AMP rating required for a stalled servo.

The stock Axial AE-2 ESC is a great little ESC (made by castle creations) and there is no need to replace it unless you want a brushless motor or you want to run 4s-6s batteries.
It will handle brushed motors from 19 turn up. Some have used it on lower turn motors, but it is not recommended.