The rebuilt 400 amp controller came today!
I'll put it in the car tomorrow. Do another timed 0-50 km/h & top speed run
I have to say though: the 300A unit is adequate for driving around here. If I'd had it in the car before I saw the auction for the 400A one, I wouldn't have bothered bidding on it.
It's nice to have the power on tap when needed. I turned onto a road a couple of days ago misjudged the speed of a truck coming up behind me. Not a close call by any means - it was probably 300-400 feet away at least when I pulled into his lane (50 km/h road). But I did use all the power available to keep from forcing him to brake as he came up behind me.
Upshift & floor it. As soon as the ammeter needle drops off the current limit, upshift and floor it again... It's weird doing the opposite of what you'd do in a gas car.
If I'd made that mistake with the 225A controller, I would have had to throw on the 4-way flashers to warn him. And apologize into my rear view mirror.
That said, I'm not going to turn down a 400A upgrade. MOAR MOAR!