Kraton Stock ESC and Castle 2028 motor

[Hubdy]

Thanks for all the input. I think I'm going to return the castle motor because it's getting a bit up there if I go with xlx2 (another $270+225 motor.) I'm thinking to go with the new Max 5 g2 esc, which motor should I go with and which Kv (something with 8mil connectors)? I'm in FL so the cooler it runs the better.

 

[dure16]

Thanks for all the input. I think I'm going to return the castle motor because it's getting a bit up there if I go with xlx2 (another $270+225 motor.) I'm thinking to go with the new Max 5 g2 esc, which motor should I go with and which Kv (something with 8mil connectors)? I'm in FL so the cooler it runs the better.

I’d think about 12S if heat is a primary concern.

Leopard, Hobbystar, and TP all carry 12S-capable motors in the 700kv range. That 800kv Castle you have is a very popular 12S motor.

 

[Hubdy]

So keep the castle motor and get the max5 g2? Trying to stay with 8s set up though

 

[dure16]

So keep the castle motor and get the max5 g2? Trying to stay with 8s set up though

That’s what I’d do unless the $50 difference for a cheaper motor doesn’t fit the budget.

That Castle motor is very good.

Hobbywing makes an adapter cable so you can run the castle motor in sensored mode with the max5 g2.

 

[Hubdy]

Which motor mount for the castle motor do I need?

 

[dure16]

Which motor mount for the castle motor do I need?

It fits the stock motor mount just fine. For running 8S, you’ll want to install the 39T spur gear that came packaged with the instruction manual.

And I would buy this pinion in 39T size:

https://www.sagacustomrc.com/store/p601/M5_screw_8MM_Mod_1_Pinions_gears.html

 

[dure16]

Correction: if your Kraton is not an EXB version, then you’ll need the 56mm mounting plate for the motor.

Part number: ARA320591

 

[Hubdy]

Thank you

 

[Hubdy]

Arrma 56 mount will work with 39/39 set up? Just confirming

 

[dure16]

Arrma 56 mount will work with 39/39 set up? Just confirming

Yes, that is what I run.

 

[CrankJack]

So keep the castle motor and get the max5 g2? Trying to stay with 8s set up though

I have the stock spektrum esc with the 1100kv castle motor and it run great

 

[Hubdy]

Where do you leave? Hot climate? Any heat issues/cogging?

 

[Hubdy]

It will run cooler on 12s vs 8s?

 

[dure16]

It will run cooler on 12s vs 8s?

It's not always black and white, but in general, yes. Ohm's law tells us that watts = volts x amps. And amps lead to heat build up.

So, you can achieve the same power (watts) by using less current (amps) if you increase voltage.

For some basic napkin math, let's say that 2028 can produce 10,000 watts (total guess). Let's also say 8S equates to 32 volts and 12S equates to 48 volts.

10,000W / 32V = 313 amps required on 8S

10,000W / 48V = 208 amps required on 12S (and therefore less heat)

There are other factors but that's the gist of it.

 

[Hubdy]

Thank you, very clear explanation

 

[Hubdy]

Same rule applies to esc load?