You will almost certainly have to build your own high discharge battery. Voltron over on endless sphere has a very long thread showing his process for making packs from 30/60c pouches. Small packs with crazy high amps. He built one for a LDU hill climb car last year. Super small for what it is.

Bob

The question is when is the SDU board coming out, and will we be able to use a combo of the LDU and SDU with the VCU300. For me, I like all the added functionality the VCU brings, simple things like off the shelf Vehicle Dynamics Module is really helpful. I'm doing a multimotor build, and for me it ...

On the batteries he is using, to me that is the least interesting of his projects. I ran the numbers and I don't see the advantage on cost or range. My lipo pouch battery I am building seems to beat it on everything but total Kwh, but maybe he sees something I don't.

The external igbt bank that ...

Doug when I read of your idea to use oil injection to cool the drive on the other forum, I suspected friction was going to be a issue. You are nuts to have tried water! I would not have had the stones for it. My bet for success is a mist of a low billing novec fluid. Maybe a 45 or 55 c. Spray in a ...

Paper attached.

Ok makes sense. for awd you would need to compare all four wheels, or through a GPS on the Can and have it calculate expected wheel speeds for a given mph to compare too.

This sounds good for straight lines, but in turns the left and right wheels need different speeds. And in a car with 3 or 4 ...

My chassis is a rcr superlite coupe. Aluminum semi monocoque, basically a semi street legal track car. It is a lot of work to convert over to electric, but it was the best platform I could find without building new from the chassis up.

I really like the GPS and wheel sensor solution racetronics ...

I think the 2 degree per min removal of heat is a hard limit. The guy i link above is pushing 35c coolent in and getting 37 out. Getting the coolent colder is not going to help if I understand it right. If there was something with a better heat capacity the water... But that's moving into scifi ...

100 percent agree. But i think we can guess at the heat soak. 35kw continuous, 90kw for 15 min is what most say is what the ldu can handle before heat soak degrades performance.

https://www.diyelectriccar.com/threads/tesla-powered-cobra-race-car.180761/

Best report of real world heat soak. Stator ...

It definitely is. The issue is these boxes a 1) geared for a 4800 to 5000 pound car. Drop the weight in half and you have too much torque for any tire to handle. You are going to be loading the gear box all wrong as the tires spin and catch. And b) designed to have traction control so you do not ...

I am going to be swapping the gears on my ldu's for the 4.5:1. If you can't find a set we can work something out. I'm probably 2 months from tearing them down. I think I know someone that has a dead ldu too. I'm close to you John in Boston, if your are in Ct. Pm me.

Bob

I know right? When I saw it I could not belive I had not heard of him before now. I am seriously considering immersion cooling one of my tesla inverters. I am running them remote from the drive, and it would not be that hard.

I am thinking of building a igbt bank too and just seeing what it can do ...

This ended up in my YouTube feed, hadn't read about him on any of the forms before.

http://turbo-electric.org/teslaresearch.html

Read down to the bottom of the page.

Guy is running custom igbt banks with open inverter board. Going for 455 volt @ 1200 amps on LDU.

He also talks about custom ...