Motor upgrade

[Bart458]

Hi all,
I'm thinking about changing out the motor in my RTR v2 & was wondering if this will fit straight in or will I need to change other things to make it work?

TrackStar 10.5T Stock Spec Sensored Brushless Motor V2 (ROAR approved) (AU Warehouse)

[smog]

Does the v2 have a brushless sensored cappable esc? The first version didn't.

I have that motor in one of my TH currently, and it is just perfect for me. I have a Tekin RS esc though

I think you are gonna need to get an esc to go with it. I would make sure your trans has metal gears too if you are gonna crank it up

[Bart458]

Thanks for the reply. I think the gears are metal except for the spur. Might have to change it.

[mikebecher]

Originally Posted by Bart458

Thanks for the reply. I think the gears are metal except for the spur. Might have to change it.

A plastic spur is usually fine and serves as a cheap fusible link.

[Bart458]

Just checked the ESC & it will go down to 8t. The turnigy motor is brushless but the standard dynamite 15t is brushed. Does that matter?

[Stollenritter]

Hi Bart,
seems your stock esc can`t handle brushless motors. You have to get a brushless esc, too. Make sure the esc is sensored and the drag brake can be set at 100%. If you go for a trackstar esc, check if the sensor cable is included. You also may want a programming card to fine tune your esc.
Greetz,
Stollenritter

[smog]

Originally Posted by Bart458

Just checked the ESC & it will go down to 8t. The turnigy motor is brushless but the standard dynamite 15t is brushed. Does that matter?

Yes. Your brushed ESC will not run a brushless motor. The 8T motor your esc is rated to is referring to brushed power only.

The Turnigy you are looking at is brushless AND sensored. If you are not wanting to pick up a new ESC you will need to stick to brushed motors. If you do pick up a new ESC be sure it is capable of running sensored motors.

[Bart458]

Thanks heaps guys

[Bart458]

Ok what about this combo?

Turnigy TrackStar Waterproof 1/10 Brushless Power System 4000KV/80A (AU Warehouse)

& why does it have so much more power when it's only a 16T?

[Bart458]

Anybody?

[Dbx]

Originally Posted by Bart458

Ok what about this combo?

Turnigy TrackStar Waterproof 1/10 Brushless Power System 4000KV/80A (AU Warehouse)

& why does it have so much more power when it's only a 16T?

The 4000kv is a 2 pole version. The 3520kv is a 4 pole, which will give better power, more torque, and be smoother. I ran one in my TH for about 6 months. It was a great motor. It lacks the low speed control and smoothness of a sensored system - depends if you want to crawl with it very much.

[Bart458]

Thanks mate. So 4 pole is better?

[Jeff Jenkins sr]

You will want to go with a sensored brushless motor if you plan on doing any crawling, non sensored motors will cog to much.

[Bart458]

So I ended up going sensored brushless as suggested. I got the Hobbyking xcar 120A esc/4500kva motor. In the box are 2 black caps on a board, these have a small red & a black wire coming from them. The manual doesn't mention them at all in the wiring setup & im wondering where the go?

[Bart458]

What Pinion Spur would you guys recommend for thgis setup? I'm thinking spur around 86-90 & pinion between 20-24? I like to crawl a bit but also like the punch & speed of the 4500kv motor. Any advise will be greatly appreciated.

[Bart458]

Anyone?

[Dbx]

I was running 22/78 with a 4500kv puller pro. It's as fast as i'd ever want in 2nd gear, and crawls well in first. I've dropped a 32dp gear setup now.... i cant remember which sizes, but its a close equivelent.

[Bart458]

Thanx dbx