Hi, I'm new to RC cars - still racing IOM a RC racing sailing class - and I don't understand how to read the technical info of engines and esc.

I know the difference btw brushed and brushless but don't know the rest like :

3600kV, 5200Kv and 4.5T or 10.5T - what do they mean and what the differences.

And how to find an ESC that will match a motor or vice et versa...

Thx for your help

Fyi I bought a B44 second hand and very happy so far but I need a new ESC and frankly I don't know what to pick - my current motor is a Murfdogg brushed but that's all I can find out.