Help! Converting Rc Racing Car From Brushed To Brushless.......

[Matthewdupreez]

hi guys.. i have an old(ish) dirt/track racing car (rc) that i'm looking to "superpower" i've seen a couple of you guys do conversions on your cars, and i'm just wondering which motor set would be the best to use?? what to look for and any warnings/tips... here are some sets ive found so far....
https://www.banggood.com/Racerstar-...NtbL3C-Rbl2UUlmXt7yIGUh-nDyxAOAgaAgvgEALw_wcB
https://www.banggood.com/SURPASS-HO...sgKYtzGSnU4Pu3gpZam-SuytmNgEtbcgaAlYmEALw_wcB

will post pics of the car later

 

[Matthewdupreez]

@The Hangar i believe you've done a conversion.....

 

[FlamingRCAirplanes]

@The Hangar i believe you've done a conversion.....

I did too!

 

[FlamingRCAirplanes]

hi guys.. i have an old(ish) dirt/track racing car (rc) that i'm looking to "superpower" i've seen a couple of you guys do conversions on your cars, and i'm just wondering which motor set would be the best to use?? what to look for and any warnings/tips... here are some sets ive found so far....
https://www.banggood.com/Racerstar-...NtbL3C-Rbl2UUlmXt7yIGUh-nDyxAOAgaAgvgEALw_wcB
https://www.banggood.com/SURPASS-HO...sgKYtzGSnU4Pu3gpZam-SuytmNgEtbcgaAlYmEALw_wcB

will post pics of the car later

Can you tell me the size of the old motor?

 

[Matthewdupreez]

I did too!

for track/offroad/or dirt??

 

[Matthewdupreez]

Can you tell me the size of the old motor?

it's unmarked but i can get external dimensions....

 

[FlamingRCAirplanes]

Those both look good. I would buy the Surpass kit though.

 

[FlamingRCAirplanes]

for track/offroad/or dirt??

Track/offroad.

 

[Matthewdupreez]

length 55mm, diameter 35mm, shaft 3.17mm, and shaft length 15mm

 

[FlamingRCAirplanes]

Then I would go with the Surpass kit. How much is it in USD?

 

[Matthewdupreez]

Then I would go with the Surpass kit. How much is it in USD?

~$50

 

[Matthewdupreez]

$53 to be exact

 

[FlamingRCAirplanes]

That's what I paid for mine!
It is a great deal. I have mine and it goes ~40 mph.

 

[FlamingRCAirplanes]

But honestly I find myself wanting a sensored brushless motor.
The sensorless brushless motor can't drive slowly on anything but the road.
sensorless brushless motors have tons of torque on high speeds but almost none on lower speeds.
sensored brushless motors have torque on low and high speeds.

 

[Matthewdupreez]

That's what I paid for mine!
It is a great deal. I have mine and it goes ~40 mph.

oooohh.... mine at the moment only hits 40kmh... and that's on a perfectly flat straight tar road...
can't wait to unbrush it and see what it can now do on the farm...... unfortunately it's a low swung car.... so off roadishness is rather limited by ground clearance.... unless..

 

[Matthewdupreez]

But honestly I find myself wanting a sensored brushless motor.
The sensorless brushless motor can't drive slowly on anything but the road.
sensorless brushless motors have tons of torque on high speeds but almost none on lower speeds.
sensored brushless motors have torque on low and high speeds.

who wants torque at low speeds.... high speeds are way more fun... especially when you strap a phone on it and record the track... makes you feel super...

 

[FlamingRCAirplanes]

oooohh.... mine at the moment only hits 40kmh... and that's on a perfectly flat straight tar road...
can't wait to unbrush it and see what it can now do on the farm...... unfortunately it's a low swung car.... so off roadishness is rather limited by ground clearance.... unless..

Okay. then if you can't already drive offroad then I would go wtih sensorless.

 

[FlamingRCAirplanes]

who wants torque at low speeds.... high speeds are way more fun... especially when you strap a phone on it and record the track... makes you feel super...

Yeah!

 

[Matthewdupreez]

Okay. then if you can't already drive offroad then I would go wtih sensorless.

hmmm.... oh boy i can drive off road.... just put up ramps at the beggining and ends of the tall grass areas... full throttle and fly/leap over those areas.... just aim right or you hit a tree...

 

[FlamingRCAirplanes]

hmmm.... oh boy i can drive off road.... just put up ramps at the beggining and ends of the tall grass areas... full throttle and fly/leap over those areas.... just aim right or you hit a tree...

Yep! And if you are going full speed when you hit the grass you can keep going. Just don't expect to start going again once you stop on the grass.