DVD3500 wrote: ↑Tue Apr 28, 2026 12:45 pm Oh right, I got that confused with the Cannonball run Rivian... I am getting old ...

In fairness to you, there were videos about both, on the same channel, released fairly close to each other.

I saw a video about how the Rivian truck actually changes the batteries from parallel to serial to up the voltage for fast charging and then switches back to increase capacity.

I would have fairly easy access to the batteries so I was wondering about the feasibility of doing that as well ...

I know I'm a bit late to the party, but I did want to point out some concern with the coolant pump. It does look a little different from the Prius ones that have been the bane of my existence, but similar enough that I want to flag it - I've had nothing but problems with Toyota pumps, especially but ...

I had a gap in work today and decided to do some digging to hopefully be helpful on this project.

First, it does appear from what I can find that this is essentially the same transmission used in the Jeep Wrangle 4xe PHEV and the Grand Cherokee 4xe PHEV (not the e-torque mild hybrid of either). For ...

I will also have a look at those. Let's hope they work on performance LDU with the sole goal of running on a teststand.


Yes, a base tune will work in a sport/performance LDU. The sport version just allows you to turn up the power, which I've mostly done by raising fslipmax and lowering fweak ...

Yes they are generic default. I assumed that they would work as a starting point for further tuning.


The best thing about the OI control board is you have control of every parameter. The worst thing about the OI control board is you have control of every parameter.

Its always good to start ...

Please share your parameters

I think, but don't know, that this is or is highly related to, the transmission used in the Jeep Wrangler 4xe here in the States. Having an OI solution for it would be awesome.

I haven't done much digging, but I understand there are some aftermarket controllers out there for the regular 8HP. I ...

Should we group buy a block of mac addresses from ieee?
Could also buy a $2 wifi usb adapter, take the MAC address and recycle it. (I think..)


For the purposes of getting access to the Supercharger network, I don't think that helps us. We need a MAC address in the block of addresses that their ...

Assuming someone else MAC address and thus the derived right to charge, or worst yet billing to them when you charge should be avoided at all costs.


Yeah this is certainly the concern that I want to avoid at all costs.


I would think that you could use the MAC address of any EV you own that ...

As I understand it, the powerline communications interface has a MAC. I assume they're doing MAC lookup to fingerprint the vehicle. (I think that's how Autocharge works.) I assume each OEM has a separate block of MACs they program into the PLC controller, but I have never tried to verify that ...

there must be some hand shake or vin data that is being requested form the supper charger i suspect, as i have seen folks trying to charge differnt vehicles on a supper charge when they have a verified non tesla selected in the app and it not working


So I managed to go test this morning. They ...

from my understanding the nacs-ccs adapters are just dumb passthroughs for the most part

Yeah that's my understanding too, and why I want to put it to the test. I'm fortunate that nearby there is an Ionna station with CCS and NACS ports, directly across an intersection from a Tesla Supercharger ...

Why keep the torque damper? My understanding is that there's no fluid flow to/from the transmission, so why not just remove it and put a blockoff plate over the bellhousing?

Well the '40 decided to be a pain this weekend. I decided to stop stalling on the battery heat, and just put the firewall back in and work on that later. The plan was that I would then take her out for some testing of a CCS-NACS adapter and see how well FOCCCI does with it. I needed to charge the ...

I guess I'm missing why you want to separate them. Its been a while since I looked at the diagrams but I don't recall seeing a need to separate them like that.

Also, I have heard before, never straight cut axles you intend to seam. Cut them at 45. That way if they snap off in the sleeve, they're still constrained.


I will note from experience that even if cut on a 45 and sleeved, you may not realize they have broken until they punch out the wall of the ...

I’ve barely take a peak at the spec. Is there a vin exchanged during the handshake? How dose Tesla gate keep access?


Attached is the technical spec from Tesla. For communication it only says:
4.5.1 For DC charging, communication between the EV and EVSE
shall be power line communication over ...

And greg raises a good point! a small battery you dont have to mess with allows you to focuses on everything else and get something running and driving, very easy ith a truck, just throw water ever battery un changed in the bed.

This was how the beginnings of my datsun was. Volt pack im the bed ...

Anything to look for as far as Chevy Bolt batteries or model 3 batteries? Year? Size? Chemistry?


With the Bolt I would say get the VIN of the car its from and check if it had the battery replaced as part of the recall. There are websites that will do that. You don't want one from a car that has ...

I've said for a while now that with EV conversion batteries right now its a classic 3 criteria, you get to pick 2 situation:
Low Cost
High Power Capability
High Energy Capacity (range)

The Volt batteries are low cost, high power, low energy capacity. There are good number of options that are low ...

Which gets me excited about implementing foccci with a nacs port!



I'm hoping to do some testing in this regard this weekend or next. My daily (Charger Daytona) just got returned from the dealer AND Dodge got access to Stuperchargers this week, so I bought a CCS-NACS adapter. Planning to test ...

Honestly? I dislike it. It makes the forum more cluttered in my view. But if others want it, I'm not upset about it.

(once again, my thanks to you, Johannes, for how this forum is built out and operated)

Awesome video! Makes me once again wish for some local EV friends. (OI forum members have an open invite to come hang out here in Raleigh)

As someone who has used several Volt packs (originally built the '40 with two 1st gen and then swapped for two 2nd gen), I'd caution against it. They are good for what they are good at (very tolerant of high power demands, for relatively cheap) but they are a bear to fit into a car, have been finiky ...