Tesla powered 4x4 setup using a single motor.
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- Опубликовано: 3 окт 2024
- Tesla 4x4 setup using a single Tesla motor and 3 differentials. Using one welded differential as the transfer case and 2 other differentials out of a Dodge Charger Police pursuit vehicle. Lots of engineering and lots of fun.
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Great progress! This is an exciting project! My first thought is a ford focus. Maybe a Mitsubishi Evo.
It’s funny you mention that, I’m doing a Mitsubishi Evo 8 EV conversion. I’m just using two small drive units . I wish I thought of using a rear diff as a “transfer case” . It would have been a much simpler setup with one large drive unit.
Hey! How was the inverter problem you had? That's one of the things holding me back for buying that Tesla drivetrain
If I understand correctly your planning to route the cooling in factory inline route? Since you separated the inverter from the motor, why not make it better cooled by splitting the line ? You can have one coolant hose from the radiator, T it to have one go to the inverter and the other to the motor. Then, in the return merge them back to the radiator.
That may have to happen depending on the car I install it on.
I really love your creations!
Really clean, professional.
High level craftsmanship
Thank you.
If I was you I’l think of a car that has a fram so you cane make a ”skateboard” and have the batterypack nice and low, the same as a Tesla modell S.
I am collecting parts to make a Streetrod Ford 32 3w EV, it has a frame that will be the ”batterypack”.
Inspirational build success! What is the name for the solenoid locking device you incorporated and called an electric on off and is mounted close to the front differential?
So I have been researching all the different options for ev conversions for past few years and the biggest issue is the lack of centralized information somewhere that doesn't take an engineer to read it. You are providing what this niche needs to get it in the hands of more people. Thanks for that! What do you think about mounting a drive unit between a transmission and diff in truck? Use a smallish battery that would fit in a bed tool box and just have it for regen and extra power for towing.
I was thinking your TESLA Model S motor could be clocked where the motor is above the ring and pinion, meaning the motor would be sticking-up inside your car. this would allow a space for more batteries on each side of the motor. Also looking forward to a future video to see how it all works.
I think a small truck would be cool like a Chevy S10 or something, but a Evo would make the perfect chassis as well.
Looks like a cool build. In the midwest there are Rallycross events where it is a timed event similar to autocross. Not sure what there is on the west coast. I'm hoping to build an electric conversion for Rallycross over the next year or so.
I am looking for a rallycross track near me. I have a new LDU motor reduction coming in the next week or so, should be a game changer.
Hey jack I think a cool car that would be great for your 4x4 project would be a late 70s early 80s c3 vette you can find projects cars as cheap as $2500 and they have a independent rear axles!
Is there a reason as to why you didn't just weld the original Tesla differential and use the whole original drive unit as the transfer case, just rotated sideways? I may be missing something here but this seems like you cut off the original diff and put another in place?
Yes there was a easy explanation. The Tesla output ends up at about 9.2 to 1.
So if you did what your thinking you would have about a 27 to 1 ratio of you used a 3 to 1 differential. You could climb walls but your top speed would be about 45 mph. The electric motor would would be flat out.
I'd like to go 4x4 ev on my mustang. I've got a mad max thing going on with it to handle these Oklahoma roads.
I'm actually in Oklahoma right now. Visiting my sons in Blanchard.
Put the power train and drive train combo into a nearly unheard of or an odd choice that hasn't been done yet with interesting engine swaps or something like it into. How about an american only economy car from the early 60's to late 70's or even the 80's that still had some chrome bumper cars being made at the time?
Why didn't you utilize the original differential that came with the Tesla Drive Unit as a transfer case?
Hi, It's because the reduction in the Tesla drive is just over 9 to 1 from the motor RPM to the Differential in the Tesla drive. So if you where to hook the Tesla drive which comes out at the axles as 3 to 1 to a rear differential in a car with about a 3 to 1 you would end up with about a 9 to 1 overall drive. which means that you could climb walls with the car but your top speed would be 1/3 of a normal Tesla Model S. 149/3= approx 50 MPH. Not real quick but like I said it would be a great hill climber.
Why use a diff (307) when the drive unit had a built in one....?
Hi Chris, I'm testing a new Tesla motor configuration and needed it setup like a stock old mustang or Camaro. It's a custom drive I designed.
Can you teach me everything you know? ...subscribed...these are great videos
Thank you, I have a new project started so hopefully you'll learn a few more things.
Interesting project, have you considered using a front motor from a model 3 to make a 3 wheel motorcycle?
I consider everything. The problem is 2 fold, 1 I don't feel like building another Roadstercycle and 2 the Model 3 front drive controller is not out there yet.
I wish you showed us how u split the motor in half and removed the gears
Hi Fast Lane, You can find that on RUclips in someone else's video. It's quite simple actually and I'm sorry I did not video the procedure. Take the bolts out split the motor and remove the gears. You do have to change internal bearings to sealed grease type as the oil system was removed. The biggest thing about splitting the motor is being careful not to hurt the temperature wiring. Start by taking the inverter cover off and unplugging the temp connector from the board and giving it some slack where it goes through the gearbox in to the motor side, that way when you split the case you'll get some slack which helps a lot. Look for a posi diff install on EVTV so see there procedure.
Why not just keep the factory Tesla transmission?
You can't keep the stock Tesla transmission if you want to run a car differential because the out put is at about a 9.37 to 1 ratio which means if you connected it to a 3 to 1 automotive differential it you have approximately a 27 to 1 ratio. You could climb walls but you could only go maybe 45 mph top speed with the motor running at 17,000 RPMs. My setup gives to about the same RPMs as an ICE motor and has a top speed of about 125 MPH.
@@Roadstercycle you can get gear sets in the 4-1 range for the Tesla box.
Yes, I know, you need to do more home work on the subject. You can't buy anything out there that does what I needed. with the 4 to 1 here are the numbers.
4 to 1 x 3 to 1 differential = 12 to 1 final ration. Most drag cars run a 4.12 final ratio. That 4 to 1 was built for range rovers and other vehicles with giant tires. @@mp-xt2rg
You can get lower ratios for the model 3 motor. It probably doesn't make sense to do all that anyway. Just running two motors is likely lighter and you can then use independent traction control.
How do you plan to connect the inverter half to the motor?
High, that is a simple solution, just using long cables to attach it. I should have another video coming of the new gear reduction setup pretty quickly. Couple, 3 weeks I hope. Making parts now. It's a bit complex.
You can't say covid on youtube videos?
There where banning people for saying it on RUclips so I edited it out.
jeep
Move out of California. Problems solved.
Find an old Subaru GC or GD chassis and have at it. The “symmetrical” Subaru drivetrain runs right down the middle, so your diff/transfer case will have a straight shot to the front and rear pinions.
Actually that is a kind of issue. This package is a bit wide and would be offset a bit, meaning the front offset diff is perfect and the rear drive shaft is going to be at a bit of an angle unless it's a really wide car where I could center the transfer case then the front shaft will be at a bit of an angle. Again depends on the donor car.
@@Roadstercycle Option #1: Rethink the front axle and go with a center mounted design. Option #2: Rethink the rear axle and go with an offset-mounted design. Option #3: Rethink the center diff and go with some kind of offset...maybe add a 4x4 transfer case w/ 1:1 gears to move the rear driveshaft over several inches. Option #1 strikes me as the cleanest, but most complex solutions. Maybe look at how Porsche does it up front. Heck, you could use old Porsche struts, axles, control arms, brakes, aluminum knuckles, etc.
@@apricity69 I'm thinking front wheel drive donor car with the front suspension already there first then engineer the best solution. I can do all the options, everything is on the table, except adding more weight with a 4x4 transfer case that's not an option. I'm looking American made donors. If anyone does not know this Tesla uses a lot of Ford parts. I think the Ford Focus may be the winner here.
So use the front transfer case and maybe the transaxle off of a manual AWD Focus RS. Just run it in locked 3rd or 4th gear (whatever is 1:1), not bolted to an engine. Basically, send power through the transaxle backwards. You’re already using a diff as a transfer case, so why not use a transfer case as a diff?