Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 01, 2025 1:59 pm
by Alibro
My charger gets pretty warm too so I guess that's normal for them.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Mon Oct 06, 2025 4:59 pm
by Gregski
so after much slacking and a little family medical situation I MILKED for all it's worth the truck is finally fully charged to 393 volts (just to be safe since I don't have BMS) and ready for some drive testing
this should really read Charging Complete but anyway that's what it means, it means the charging stopped once it reached the voltage we were trying to charge to aka 393 volts in this case (fully, fully charged for this pack is 400 volts)
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Tue Oct 07, 2025 4:01 pm
by Gregski
Science...
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 08, 2025 1:08 pm
by HerbP
I think the obvious conclusion is that the "Dual Motors" emblem on the tailgate offers a significant performance boost.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 08, 2025 3:38 pm
by Gregski
HerbP wrote: ↑Wed Oct 08, 2025 1:08 pm
I think the obvious conclusion is that the "Dual Motors" emblem on the tailgate offers a significant performance boost.
absolutely it's the equivalent of putting Jegs and Holley decals on your sh!et box in the 80s, basically instant horse power boost, science don't lie
decals.jpg (11.72 KiB) Viewed 1412 times
decals 1.jpg (57.32 KiB) Viewed 1412 times
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 08, 2025 6:15 pm
by mane2
Dual motors, one wheel drive
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 08, 2025 9:16 pm
by Gregski
First Preliminary Range Test After Battery Pack Upgrade With Dual Motors - FPRTABPUWDM
Terrain, this was a rather unique range test in that it was not quite at Highway (65 MPH) speeds nor city street (45 MPH) speeds but at what I call Rural America Driving aka RAD speed 55 MPH, so these C10 (pronounced: "dimes") trucks natural habitat
Expected Range: 84 miles
Actual Range: 58 Miles
I used three different speedometers to record this to account for discrepancies, at this point in the game there is no room for error
my Intellitronix Speedometer which claimed we went: 57.1 miles
a free iPhone app called Speedometer Simple which read 58.65 miles
and Map My Ride bicycle app which thought I had, and I quote "A Great Workout" going 57.07 miles
RPM, based on my eyecrometer at no point in time did we go north of 3,000 revolutions
We started with the battery charged to 393 volts (since I do not run a BMS) the full charge is actually 400 volts. We ran it down to 297 or there abouts.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 09, 2025 7:55 am
by tom91
Did you log or record your HV current and voltage during the drive to work out what it takes to cruise at certain speeds? As that would give a good indication of efficiency.
At 297V I would strongly recommend verifying all the cells/modules are close before recharging. Since you have combined two different packs.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 09, 2025 5:00 pm
by Gregski
tom91 wrote: ↑Thu Oct 09, 2025 7:55 am
Did you log or record your HV current and voltage during the drive to work out what it takes to cruise at certain speeds? As that would give a good indication of efficiency.
no I didn't I wish I had, I will do that next time as I plan on doing more of these range tests, as well as speed tests, one thing I want to try is see what the range will be running once again on only MG2 but this time with two of them 12 kWh BMW PHEV battery packs aka 24 kWh
also as a reminder I am still rocking the Legacy Lexus GS450h VCU as opposed to the Zombie, just making sure folks be aware of that
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Sat Oct 11, 2025 7:23 pm
by Ghia66
Gregski wrote: ↑Mon Oct 06, 2025 4:59 pm
one eternity later.jpg
IMG_2652.JPG
IMG_2661.JPG
so after much slacking and a little family medical situation I MILKED for all it's worth the truck is finally fully charged to 393 volts (just to be safe since I don't have BMS) and ready for some drive testing
I have got my BMW 12Killerwhale up to 344volts after an hour of granny charging… so slow!!
IMG_2673.JPG
this should really read Charging Complete but anyway that's what it means, it means the charging stopped once it reached the voltage we were trying to charge to aka 393 volts in this case (fully, fully charged for this pack is 400 volts)
IMG_2671.JPG
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Tue Oct 14, 2025 1:15 am
by Gregski
something to keep in mind whilst electrifying that "classic" [pronounced: old] car of yours is that just because you convert it to electric, that doesn't mean all the problems associated with age will go away, case in point brake lights
I especially appreciate the components which I have not touched during the Phase II upgrade that have decided to stop working all on their own
I used to have an old paper clip that has shorted out a bunch of connections over the years, but now I use this BMW specialty tool part number 357-4008
OK so it's not the harness
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Tue Oct 14, 2025 1:17 am
by Gregski
so on this truck the brake lights have nothing to do with the EV components, but this is what was holding me up from driving the truck safely, a $15 dollar brake light switch
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Tue Oct 14, 2025 10:07 am
by P.S.Mangelsdorf
Gregski wrote: ↑Tue Oct 14, 2025 1:15 am
something to keep in mind whilst electrifying that "classic" [pronounced: old] car of yours is that just because you convert it to electric, that doesn't mean all the problems associated with age will go away, case in point brake lights
Oh that's the fun part, isn't it? [sarcasm] The 40's headlight switch decided to act up on Drag Week. Mostly made it through, but love all the sudden losing headlights on a windy PA backroad in the rain at midnight.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 16, 2025 1:10 am
by Gregski
on this episode of Running and Driving Car Problems - RaDCP we find that we were about 10 PSI low on air at all four corners
have you all discovered the digital FREE air pumpulator stations @ Costco
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 16, 2025 1:23 am
by Gregski
another milestone was charging the two 12 kWh BMW PHEV battery packs at a public Level 2 charging station for the first time, this one calls itself ChargePoint
This was sort of a big deal as I can't get my trusty VEVOR Level 2 charger to work at home!
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 16, 2025 1:47 am
by Gregski
Second Range Test After Battery Pack Upgrade With Dual Motors - City Driving Only
see if you agree with these speeds when it comes to classifying this range test as city driving, most of the driving was done at 40 MPH plus or minus 5 miles per hour
Speedometer Range: 71 miles
Speedometer App Range: 74 miles
Sorry once again no amp/volt consumption log/stats... next time
not sure what that says 80 I think its total miles for that day not the last trip
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 16, 2025 9:42 am
by Alibro
A 24 kWh Nissan Leaf had a range of around 70 to 80 miles on a good day so getting 74 miles with the aerodynamics of a brick is probably as good as you could expect.
My Freelander has a 38kWh battery and my range is around 100 miles. I once did 115 but ran out of juice.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 16, 2025 3:16 pm
by Gregski
Alibro wrote: ↑Thu Oct 16, 2025 9:42 am
A 24 kWh Nissan Leaf had a range of around 70 to 80 miles on a good day so getting 74 miles with the aerodynamics of a brick is probably as good as you could expect.
My Freelander has a 38kWh battery and my range is around 100 miles. I once did 115 but ran out of juice.
exactly right, we leased a 2013 leaf with a 24 kWh pack and it ranged around that 84 mile mark, it did have a single motor though, so I am tempted to disable MG1 using the software on my Legacy VCU and do some range tests that way, wonder if anyone would be interested in seeing those numbers
just yanked this off of The Google: The weight of a 2013 Nissan Leaf ranges from approximately 3,256 to 3,340 pounds
wonder how that compares to that of Creeping Death now with two packs?
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Thu Oct 16, 2025 3:57 pm
by Gregski
so the next thing I plan on doing is weighig this truck now with two battery packs, and I regret not weighing it initially in stock OEM trim, although I did weigh every ICE related part I pulled off of it, so today I happen to come across someone who posted on Reddit what their 2nd Gen C10 (pronounced: 2WD) truck weighed so I will post it here for reference: 3,820 lbs
I'm sharing this cause the Interweb is littered with numbers that are all over the place
1968 C10: Shipping weight was around 3,200–3,300 pounds.
1969 C10: One user reported a 1969 C10 weighing 3,800 pounds.
1971 C10: With a 350 engine and TH400 transmission, it typically weighed 4,000–4,200 pounds.
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Tue Oct 21, 2025 11:44 pm
by Gregski
What time is it? [wrong answers only]
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 22, 2025 12:18 pm
by TassieDevil
Waiting...
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Wed Oct 22, 2025 2:15 pm
by Gregski
TassieDevil wrote: ↑Wed Oct 22, 2025 12:18 pm
Waiting...
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Fri Oct 24, 2025 2:51 pm
by Gregski
and here's my buddies C10 Patrick's dinosaur juice powered truck as a reference weighing in at 3,739 pounds
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck
Posted: Fri Oct 24, 2025 11:50 pm
by johu
It's funny how OEM EVs are always heavier than their ICE counterparts and many conversions are the other way round.
Ah well if I remember correctly the ID.3 battery box alone weighted about 100 kg while my home made shell is more like 10 kg
Re: [DRIVING] 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck