Hi, I finally got all my pins etc from China and rigged up a sample plug with some cables - mine are the 16pin plugs. I tried contacting the supplier from Alibaba and also your supplier to get a pin out but no luck at all :)
So.. did you perhaps get a pin out or how did you figure out which pin is ...

Got it - thanks so much for the info and also for taking the time to share a picture - I will use this to go back to my supplier.

I’m using the same modules—mine are 24 units (1P4S configuration). As far as I know, they don’t require active cooling.
I've attached an image showing the connectors—try checking that.

Regarding the bus bars, my supplier included them with the modules. You could try reaching out to her; she might ...

Great! Thanks a lot for the info - this helps a lot :)


I’m using the same modules—mine are 24 units (1P4S configuration). As far as I know, they don’t require active cooling.
I've attached an image showing the connectors—try checking that.

Regarding the bus bars, my supplier included them with ...

Hi All,

So as part of my project, I finally got my 16 x CATL 6s1p 180Ah modules from China via Alibaba.com last week and they have this BMS connector here to pull out the celltaps and I think maybe temp sensors:

image.png

image.png
So here is my question: does ANYONE know what the plugs are ...

Hi All,

OK time for an update then :) Mostly in CAD / ordering things, drawing etc.

1) Batteries + CCS2 inlet are finally on their way from China - took a LOONG time to get it moving - customs, Alibaba etc. I'm fully expecting all sorts of nonsense when it gets to the port in South Africa.

2) I ...

Hey elShankos, good to see you are making progress! I'm in Cape Town as well, and moving at the same pace. I've managed to get a Zombieverter properly configured on the bench, so if you need and help with wiring things up do let me know - happy to meet up and debug if needed.


Nice one man - do ...

Hi All, been a while since I did an update so here goes:

I got the engine, transmission, propshaft and rear diff + fuel tank out:
image.png

And then I spent a LOT of time scanning all sorts of things - I'm getting a lot better at scanning after overcoming the initial learning curve!


So now ...

Hi All, I guess this is an update?

Project finally restarting now due to:
1) Had to get a second car before pulling the engine from the Subaru - eventually got a 94Ah BMW i3 for a decent price - amazing car really!
2) Had to finish the Vespa - bought if for R13k 10 years ago, sold it for R35k ...

Hi, I have been pondering the same thing for my SDU setup - what have you come up with so far?

Thanks a lot for sharing all this info - super helpful as I'm about to pull the engine out of my Legacy GT (3rd Gen) to build battery boxes up front. Did you do any 3D modelling to plan the space at all? Just curious.

Hi All, I thought I would post a mini update on my build:
- was overseas for a month!
- Now I finally have to refurbish and sell this original Vespa I have had in my garage for the past 6 years as its taking up space where I need to put the subaru to pull the engine etc:
image.png

Such a smelly ...

Great to see a open discussion on this as I've also been agonising over all the possible ways of architecting my own system. My current layout looks basically the same as yours, but I'm using M3 DU with an as yet undetermined VCU (a bit heretical to say it on OpenInverter even as a Damien patron ...

Looks great!
Small note. A/C and PTC heater (if you're gonna add one) are fused with 40A in the FHVJB.
https://www.diyelectriccar.com/threads/hacking-the-tesla-model-s-front-junction-box.193729/

Any chance you found a reasonably priced pre-made harness for the SDU LV wiring?
I see people here ...

Hi,

I've got a rear SDU going into a subaru rear subframe and I've been trying to find a diagram etc to show what the tilt angle should be. Did you have any luck with yours?

Just a mini update: so I got my bench test of the SDU done - I powered it off my Lifepo4 48V DC home battery system as a test and made this powerfully average Youtube video here:
https://www.youtube.com/watch?v=kEg9AxUq_MY

Just a heads up: while "revving" the pedal its actually pretty easy to start ...

Also, in South Africa, why not buy lithium cells from the solar suppliers? I know they are lifepo4 rather than li-ion and therefore a bit bigger, but they require way less cooling consideration, and you’d avoid all the import hassle.


Hi, so the lifepo4 cells are cool and also safer but they don ...

Very interested in seeing how you get on with this. I have a 4th gen Legacy spec B which I've had for 16years now. Would love to convert it but the ridiculous UK rules on not changing the road tax following an EV conversion mean it doesn't make sense to.

Curious about your connection to the ...

Since I am currently seperated from my beloved project back in my parents garage due to university far away, I just continued the thinking part of this problem.
I found multiple solutions that all have their specific flaws:



1) Charger directly connected to Battery, Motor connected via ...

So I decided to make an alternative wiring diagram with the following 2 main differences to the Rev 3 above:
1) I've added a main -HV contactor (to be like an actual Tesla arrangement - must be a reason its there right? :) ) and also switching all the contactors in an OR arrangement - either from ...

Quick questions on your HV wiring.

-Why is there no contactors on the HV negative?

-You need precharge on the auxiliary components too


Hi, thanks for the queries. On the main -HV contactor Q, I'm kind of following aber333's advice as I can't really see the benefit of having a second contactor ...

Wiring Diagrams:
So I started with a concept diagram that looks like this to get my head around things:
image.png

And then over the past few weeks while swopping out the inverter control board (what a pain those SDU current sensors are!) I have been working on a main wiring diagram which at ...

Hi All,

So.. I started out on the DIY Electric Car forum but it occurred to me that it would actually be better to put my build here as it's based around the OI conversion route. I had a bit of a thread here: https://www.diyelectriccar.com/threads/subaru-legacy-tesla-sdu-conversion.208076/

But ...

I hate when people say "read". Yes, reading is good, but sometimes you've been staring at the problem for so long that nothing makes sense anymore and need another head to help alleviate some of the uncertainty. I had the same questions when I was first starting and had to go investigate.

Take a ...

Never NEVER allow inverter or other VCUs to DISCONNECT your DC contactors at its whim! You setup DC link in such a way that inverter can control contactors innitially, but when on they can be turned off ONLY by removing 12V from them (turn ignition key). That is called latching relay circuit.
You ...