They earn their nickname of spinning toaster of death for good reason BUT, Honestly, I must have a special one, it's the old version HV4.5 before the 5mm shaft, but has the good rotor and endbell. I can run it 45mph on 4s in my E-revo, no problem unless you go for 50 ;) , or drop it in my Slash 4x4, on 2,3 or 4s, and never have it even start to get hot, above 140. People are going to want to shoot me for this, but speed for speed , voltage to voltage, in my Slash 4x4, I think my Novak runs cooler then my Castle 2400. I have much love for my 4.5, it's been around along time, in alot of vehicles, pushed beyond what it's little size should have allowed, and my toaster still spins up a mean piece of toasted ground.

But let's face it, with Novak's latest system being 4s limited, they have no business being talked about in a high voltage thread.