Search found 22 matches

by x.l.r.8
Thu Aug 25, 2022 7:23 pm
Forum: Projects
Topic: [WIP] Porsche 981 Cayman S
Replies: 46
Views: 12545

Re: Porsche 981 Cayman S (2014)

I have seen the new site, it seems all you need to do is comply for a safety. but reading and doing are different. but I'm going to try and register the porsche just for an exercise
by x.l.r.8
Fri Jun 24, 2022 9:08 pm
Forum: Classifieds
Topic: For sale: Tesla HPWC Gen2 converted to J1772
Replies: 1
Views: 407

Re: For sale: Tesla HPWC Gen2 converted to J1772

Can I be cheeky and ask if you left the fly leads connected from the output, my Gen 1 died and I have a Gen 2. The 1 was easy to connect as it just needed ferrules, but the Gen 2 needs ring connectors and has those 2 leads connected to the original cable at the line 1 and 2 outlets
by x.l.r.8
Sun Mar 20, 2022 7:03 am
Forum: Projects
Topic: [WIP] Porsche 981 Cayman S
Replies: 46
Views: 12545

Re: Porsche 981 Cayman S (2014)

Have you checked the local laws. At present you cannot build/convert a car to EV in Ontario. Not sure where you are in Canada but certain provinces will not touch it for insurance or registration.
by x.l.r.8
Wed Aug 14, 2019 6:32 am
Forum: Tesla
Topic: PowerWatcher Display for Tesla
Replies: 38
Views: 10004

Re: PowerWatcher Display for Tesla

I've been waiting for this. excellent news
by x.l.r.8
Wed Aug 14, 2019 6:29 am
Forum: Projects
Topic: Porsche 944 with Tesla Drivetrain
Replies: 10
Views: 3523

Re: Porsche 944 with Tesla Drivetrain

I am about to start mounting the drive unit to my car. Can you share any pictures of the way you mounted it to the frame. Also did you get driveshafts made and how easy was it to get them.
by x.l.r.8
Mon Jun 03, 2019 5:13 am
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

https://photos.app.goo.gl/aNZ4tLZSKVZ6i4ye7
In case anyone was hoping to balance charge via the plugs, the circuit board has pretty thin traces under the vulcanization
by x.l.r.8
Tue Apr 30, 2019 11:06 am
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

Some dirty calculations
The Rover V8 weighed 320lbs
The Porsche Transaxle weighed 125lbs
The Tesla drive unit 295lbs.
The modules are 40lbs each totaling 480lbs
I am hoping I can fit 4 in the trans tunnel
That leaves 320lbs to be either put back up front or to play around with
by x.l.r.8
Tue Apr 30, 2019 9:38 am
Forum: Tesla
Topic: Tesla Large Drive Unit Support Thread
Replies: 802
Views: 134754

Re: Tesla Large Drive Unit Support Thread

If I use the watchdog it will simply reset the board, that would also lose drive and on a road car I see some validity but on a race car not sure its going to make a lot of difference. That and the fact I skipped over the blinking of LED's so I really am not at a stage to follow the program right no...
by x.l.r.8
Tue Apr 30, 2019 4:24 am
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

50D16640-14AD-45B0-8047-7C1B1A4DAD65.jpeg
Rover V8 removed, a long time since the engine bay has been empty. Yes when I built the headers one side went around the steering shaft. At the time it seemed trivial.
by x.l.r.8
Tue Apr 30, 2019 3:40 am
Forum: Tesla
Topic: Tesla Large Drive Unit Support Thread
Replies: 802
Views: 134754

Re: Tesla Large Drive Unit Support Thread

I have a relatively simple question regarding inputs to the LDU 23 way connector. I have 3 momentary buttons selecting N - R- D like the roadster, I'm using a UNO with a relay shield to control the inputs. R and D will obviously trigger pins 8 and 7 respectively. In N I wish to inhibit any input fro...
by x.l.r.8
Sat Apr 20, 2019 9:02 pm
Forum: General
Topic: Tools of the trade
Replies: 1
Views: 719

Tools of the trade

I have to retire my old PDM DT500 multi meter after many many years it’s just not going to work for me. So as I have had one multimeter for so long, what’s the recommendations. ? I thought I was fairly good at soldering until I recently got a ersa I-con nano and realized how bad my old weller wand w...
by x.l.r.8
Fri Apr 19, 2019 8:12 am
Forum: Battery Managment (BMS)
Topic: Thermistor values.
Replies: 2
Views: 1066

Re: Thermistor values.

Taking into account my guess of the temp in my apartment and my down and dirty Multimeter I think it’s safe to assume they are 10k ohm thermistors so should work on the Tesla boards nicely, finally something’s working out right.
by x.l.r.8
Thu Apr 18, 2019 6:23 pm
Forum: Battery Managment (BMS)
Topic: Thermistor values.
Replies: 2
Views: 1066

Thermistor values.

Not sure where to put this bus as I’m using a mish mash of parts I wonder if anyone has the thermistor values for Tesla model S at set temperatures. Degrees Celsius Chevy Volt -40 75.5k -20 22.5k 0 7.2k 20 2.7k 40 1.2k 60 0.5k 80 0.3k 100 0.16k Chrysler Pacifica To be added to..... 0 31.1k 20 10.9k
by x.l.r.8
Thu Apr 18, 2019 3:07 pm
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

One of the end plate I’ll call the ‘power’ side terminates into the positive and negative terminals, this is the side I will be using to monitor and connect the newly formed 2P 8S modules.
by x.l.r.8
Thu Apr 18, 2019 3:05 pm
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

On the end of the assembled module this end cap lines up with the pouch cell tabs. They are identical as they are 1p 16s. Each plate also has 2 temperature probes. The main plug has 12 pins. 9 for monitoring the cells and balancing and I assume 3 for the 2 thermistors sharing a common. I’ll trace th...
by x.l.r.8
Thu Apr 18, 2019 2:59 pm
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

The trays are lined with aluminium and sandwich a pair pouches except for the end plates. So it’s pouch-plate-pouch-pouch-plate. The trays holding the plates interconnect like LEGO.
by x.l.r.8
Wed Apr 17, 2019 2:01 pm
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

I literally took the module apart last night before it got to cold. There are 4 sensors on each module both on the outer pouch making one of each pair fairly redundant. I’ll put my meter across them today. Between each pouch there’s a substantial aluminium plate that is an inverted T so I’m going to...
by x.l.r.8
Wed Apr 17, 2019 12:08 am
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

After doing a lot of reading the simple solution was to go with Toms BMS, Damien’s LDU control board. I have an 80A original HPWC for my Roadster so it seems crazy to pass up on the gen 3, 72a charger, once again controlled by Damien’s board. A Volt DC/DC converter was employed for the 12v heating a...
by x.l.r.8
Tue Apr 16, 2019 11:54 pm
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Re: Porsche spice

After breaking many drive shafts that were supposed to be unbreakable, I decided to go electric. As I have a Roadster I could only think of one solution for what I wanted. So I started with a LDU with the revision done so it’s a good candidate to push the limit with.
by x.l.r.8
Tue Apr 16, 2019 11:51 pm
Forum: Projects
Topic: Porsche spice
Replies: 10
Views: 2186

Porsche spice

So the plan is simple. Take the race car built over 30 years ago and modernize it.
by x.l.r.8
Tue Apr 09, 2019 2:24 am
Forum: Events and Meetups
Topic: Fully Charged LIVE 2019 - June 7th, 8th and 9th - Silverstone,UK
Replies: 53
Views: 20840

Re: Fully Charged LIVE 2019 - June 7th, 8th and 9th - Silverstone,UK

Another Porsche 924/44. I’d love some details on that one. I’m just finishing gathering all my parts and I’m ready to start chopping
by x.l.r.8
Fri Apr 05, 2019 4:22 am
Forum: General
Topic: Welcome to the forum - please read if you're new
Replies: 90
Views: 28270

Re: Welcome to the forum

Hi there, I'm professing myself as more of a lurker than a contributor. I am just starting to move away from my welder and calipers and picking up a soldering iron and an old computer with Linux. Its going to take me a while but I'm starting to understand various aspects of coding, in as much as whe...