ESC's

[DimmaDan]

If an ESC has a 20 turn limit, does that mean that a 23 turn motor will not work?

[El Mexican]

It will work, but could shut down or burn up due to the increased current passing through it that it was no designed to have.

Be careful. And if you decide to use your warranty, dont tell them you used a 20 turn motor.

[DJTheo]

El Mexican I think you misread his reply, the ESC is 20T and should have no problem with any higher turn motor (23T).

Cheers

[mud4fun]

LOL, except if it is an Mtroniks ECO20 in which case it may still burn up with a 23t motor [] (Yes, I have done this [] )

[DimmaDan]

So by limit they mean a 19 turn motor will not work on a 20 limit ESC?

[mr_pushrod]

Yup, just like a 14 turn motor won't work with a 15 turn limit ESC. I normally go for a turn or two above just to be on the safe side though. If you are looking to go faster in the future, I would spend a little more and buy an M-troniks RV-15 or LRP AI. They are both about £45 and have 15 and 11 turn limits respectively.

[DimmaDan]

£45 is a little bit out of my range for a first time car.

mtronic do some good looking budget ones for £20 in my local shop so i may try oe of those.

[jozza]

I always err on the safe side, so I use a 20T ESC for 27T rebuildable stocks, I would only use a 27T rated ESC for a kit motor like the mabuchi which comes with the Tamiyas.

I have used a lot of Mtronics ESCs and not yet had a problem. If you have a well looked after 23 turn motor, an ESC capable of running 20T will be fine. Common reasons for ESC burnout is straining the motor by it being dirty, connections being poor, the car being poorly maintained so there is resistance in the drivetrain etc. I always remove the bullet and Tamiya connectors if I'm going to run a hopup motor, as these are areas of high resistance and don't help the electrics at all.

[DJTheo]

quote:Common reasons for ESC burnout is straining the motor by it being dirty, connections being poor,

id="quote">id="quote">

Actually poor connections would even help a weak ESC as they limit the passing current by their higher resistance (I=V/R), but thats really no solution, as they are a waste of energy and get very hot.

Cheers

[Matt2000]

i'm never really bothered about my eco27 burning, but i am using an 80T. it never gets warm!

[jozza]

quote:Originally posted by DJTheo

quote:Common reasons for ESC burnout is straining the motor by it being dirty, connections being poor,

id="quote">id="quote">

Actually poor connections would even help a weak ESC as they limit the passing current by their higher resistance (I=V/R), but thats really no solution, as they are a waste of energy and get very hot.

Cheers

---

id="quote">id="quote">Not too sure I agree with that, wouldn't the ESC be drawing the current in order to heat up the resistive links [?]. I'm no electrical expert though, so I may be wrong..

It's always best to have the least resistance in the high current wiring as possible though, and if it doesn't damage the speedo it will for sure damage something else (like burning your fingers when you go to unplug a Deans connector where the solder joint was loose - ask my lad [])

I think the point I was trying to make is that a car which isn't maintained well, whether in the electrics or mechanics, stands more chance of blowing a speedo than one that's well looked after. Famous last words eh, I'll probably blow all my Mtronics on Sunday and prove myself wrong LOL [)]

[DJTheo]

quote:Not too sure I agree with that, wouldn't the ESC be drawing the current in order to heat up the resistive links . I'm no electrical expert though, so I may be wrong..

---

id="quote">id="quote">

Nope, as said the current is I=V/R and since all resistances are in parallel they add up, so the current is less with a higher total resistance, but as you said this isn't a solution and a car should be maintained for optimal perfomance.

Cheers