Some updates, slow going of course as this also turned into a restoration project. Kind of stuck on how best to secure the battery box to the frame. Thinking either multiple crossbar c channel or bolting everything to a 1/4" plate lasercut to fit

20260308_172646.jpg 20260309_185044.jpg 20260309 ...

I'm very close to Reading PA and I wish I had the ability to take the day off! be warned, charging in that part of PA is a little rough so definitely try and plan a route via plugshare or similar. are you on Chademo or CCS?

Awesome work! The lineup of the output shafts is outstanding and it looks like its coming along well!

I'm doing an NA with a model 3 motor and more or less came to similar conclusions. Are you in a country that allows for modification of the body? you will very likely need a mount at the back end of the battery box that bolts through or is welded to the chassis. best of luck with the build! I really ...

Now you can continue with 30 pin connector in purple colour, this is bit painful part:
1. leads and whole surrounding area is covered by solder mask, i used Dremel with small tip to clean as much as i could.
2. Even when i tried a lot i was not able to wick solder from joins and free connector.
3 ...

so this setup requires an originally-paired inverter and VCSEC and canspoofing for the rest of the messages? (not to be reductive, just trying to parse through the posts so far)

I'd be interested to hear your thoughts on chademo availability in that part of the country at the end of the trip. Drag week seems like it's a real gauntlet and I think fast charging availability broadly is a big hangup for a lot of people in the US with or without the added difficulties of a ...

how did tech go? hope you had a good start!

Sorry i missed the question. I since removed the charger because of complexity of second liquid cooling loop. It was also a pain to deair.
Yes i noticed the upper module ran a little bit warmer than other two. It didnt mean a thing for performance at the time i used it.
I would imagine this could ...

what are the dimensions of this PTC heater element?

what are the footprint dimensions of the bolt charger and dcdc converter? looks reasonably compact

thank you, yes I have one of these currently and will likely move forward with using it, but i was hoping to have a slightly cleaner solution with CAN/LIN/PWM control. it mostly fits with some clearancing (in case anyone else with an mx5 comes across this thread and doesn't want to use a coolant ...

thank you for taking the time to do the measurements. unfortunately the depth works for me but the height is too tall for my use case. I need to find one around 20x14.6cm

somewhat related, I also did not receive any notification for this reply.

Any progress on the Polestar 2 gear selector? Would love to have one of those in my future conversion.


hey, sorry I ended up picking up a bmw shifter super cheap but i do still have the shifter here with me. I want to get everything working on the build with a good understanding of why ...

Thanks to Chris at Fellten for the file, I was able to use a 3d scan + my own measurements to tetris in the battery design
Battery Box final frame 3d scan overlay2.JPG
Battery Box final frame.JPG

i have 3mm x 25mm flat copper bar to start building my busbars with, as well as the overall busbar ...

Model3 Drive unit in modified rear subframe: initial CAD placement: Frame minus motor in car:

I guess after 2 years of starting the project, I should probably start documenting it as a way to bully myself into finishing the final bits.

To begin, after about a year of playing with CAD and some other measurements, I was able to determine the following parts list:

tesla m3 drive unit in rear ...

I have a 2020 ioniq in here in north America and am interested. Do you know the dimensions of the heating element specifically? Trying to see if I can fit in mx5 heater box. Understandable if you are unable to ship to united states

I see you have your gen2 charger mounted vertically more or less. have you found any issues with it being in non-standard orientation? I have seen some recommendations that it be mounted flat and level, but was curious if that's more of a "that's how tesla installed it" versus "this is what it needs ...

The 7.2kw charger from the jeep plug in hybrids looks like it could be an interesting option too, though it hasn't been cracked yet AFAIK. Its long and narrow and has built-in dcdc.

after some substantial effort I was able to locate the 12v connectors for the i3 KLE with fast charging. I plan on utilizing this as a HV junction box for my build, so I will be documenting as much as I am able to this and then to the wiki once everything is complete.

for now, a link to the parts i ...

is it possible to add a link to this to the wiki main page? currently I can only find it here in this thread (unless I am blind, which is very possible)

edit: silly me, I could add it myself hopefully this helps add visibility to the effort as well as smoother ease of access

are these available for purchase to the US?

thanks gregski! This feels like something that should be documented in the wiki, but where would a good spot be?

update: I added it to the hardware section immediately after the prewired connector w/ leads line item

unfortunately formatting is terrible because I don't really know what I'm doing

thank you all! I do have a gear selector from a polestar 2, as well as its harness, but I'd need to figure out its CAN messages as well as its pinouts and I haven't had luck with that.

@mattsawesomestuff, I remember watching that video and I had considered that option early on, but wanted ...