All out range & efficiency build/ we need YOUR help
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Yes - PMAC. If you tear down a Leaf motor and a Tesla Model 3 rear motor, you can see that internally they are nearly identical.
The top speed of any single-gear-ratio EV is determined directly by the maximum motor speed, the gearing, and the tire circumference. The top speed of a Leaf is not a failure of the vehicle or a limitation on another vehicle using the motor, it is the consequence of good design: choosing the lowest gear ratio (most reduction) which allows the vehicle to reach the highest required speed. There's no reason to drive a Leaf over 90 MPH, so the gearing isn't taller.
If you use an absolutely stock Leaf drive unit but want to go fast, use taller tires. You can also provide more battery voltage to extend the top of the motor's performance, within inverter limits for voltage and bearing limits for mechanical speed.
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If this was a real thing I would choose a 2011/2012 Leaf that had a dead battery and then buy a couple 40kwh leaf batteries. You could probably actually swap a Leaf battery on the side of the road in 10-15 minutes with a couple guys who had practiced it.
Then add taller wheels/tires like brain said if you really need more than 94 MPH (gen 1 LEAFs go 94).
However I'm beginning to realize that this isn't anything. Road rallies and time trials etc are real but you need to have permission from local authorities and sponsors and this electric fast and furious meme doesn't have any of that.
Then add taller wheels/tires like brain said if you really need more than 94 MPH (gen 1 LEAFs go 94).
However I'm beginning to realize that this isn't anything. Road rallies and time trials etc are real but you need to have permission from local authorities and sponsors and this electric fast and furious meme doesn't have any of that.
Yup, for sure. Engineer it for the application. If you can safely get 34% more speed with bigger tires then that'll work. Or a combination of more voltage and bigger tires. A 500V nominal system will likely achieve that too with a motor speed of 13400rpm, if it can survive mechanically, electrically and thermally.
OP wants to go up to 120mph in a race, that means the motor is going to be operating in FW mode for the majority of its use. Plan accordingly and know that the cooling is adequate to reject the extra load.
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No free lunch. Your efficiency will turn to crap if you crank the revs up, unless you load up on more battery, which also makes your efficiency turn to crap.
I'd also hypothesize the Cd on a Leaf is better than on your proposed Honda Civic. Also am at a loss why you wouldn't just mod a Leaf for your playtime rally.
I'd also hypothesize the Cd on a Leaf is better than on your proposed Honda Civic. Also am at a loss why you wouldn't just mod a Leaf for your playtime rally.
The initial comment about speed was
but that was later clarified to
... so even stock Leaf speed could work, and not much more would be needed.
Clearly we live in very different places. these rallies are organized all over the world every single week. I don't have to organize this myself.
We are hours away from autobahn & Nürburgring for spirited drives
You have not read all the info I've provided. In the OP I already mention the large BMW i3 tires.
The only reason for a theme is publicity, so we can offer our sponsors coverage on multiple channels for their brand. And every penny that is not spent building the car will go to this charity. Every event will hopefully attract new sponsors, if we do our best to reach (social) media. We already have a marketing bureau with social media expertise on board! In the end we can even auction off the car.
Do you know how many record attempts for charity there are annually? That's our 'business model' but without the record.
I understand People are sceptic. You're not the first one hete to question my motives. But I'm quitting my dayjob to make this happen, and leaning on my spouse to provide. Now I don't like being this open hearted online. But this should show you how bad I want to make this happen. I was a child once... I could have benefited from the work this organization does today, but not back then.
The reason I've joined this forum is to reach out for help to get the car planned and built. Because the conversion companies are very withholding on information. Even when they sell Parts online....
The best way you ask your help is by providing all the requirements and goals...
If you have questions please feel free to ask them.
If you question me or this endeavour, please leave. We can do without negativity.
If you have the answers to our questions, please share your knowledge. We appreciate it very much!
And thanks to everybody who is thinking along. Including you, Land Cruiser
So the better route is coupling an em57 with the original gearbox?
Cd on a Leaf is better than a stock '94 Civic for sure. But we are building the car for aero, incredible results have been booked with these gen 5 Civics. See ecomodder forum.
We will drop Cd way below the leaf's value. Not to mention the difference in frontal area. Which I'm sure you know has an equally important role since
Total drag = frontal area x Cd.
Modding a Leaf gets you no publicity. You need a story that will stick with the people. When I leave after giving my pitch to possible sponsors, I want them to remember a year from now... Psychology 101, people remember stories.
By the way:
Do you have an engineering background Remy? Because I've noticed rather rapidly that you have the answer to pretty much every question asked on this forum. And, the way you treat people sometimes aside, I find it really great that you take time to help out on this forum.
Same to you @brian_ but without the attitude
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Several of us here do. I'm the autistic one 🤓
You can most certainly get attention with a Leaf. Aero mods, widebody, wide tires, a few extra cells on top of the battery stack to get the RPM (custom cut gearing in the gearbox accordingly) and efficiency up, etc.
Aero'd ricers are a dime a dozen and get no attention. A widebodied overvolted Leaf with a downforce wing cantilevered off its ass? Nissan should be throwing money at you to do it.
ALL of the popular hotrodded cars now were originally bought by accountants and secretaries.
You can most certainly get attention with a Leaf. Aero mods, widebody, wide tires, a few extra cells on top of the battery stack to get the RPM (custom cut gearing in the gearbox accordingly) and efficiency up, etc.
Aero'd ricers are a dime a dozen and get no attention. A widebodied overvolted Leaf with a downforce wing cantilevered off its ass? Nissan should be throwing money at you to do it.
ALL of the popular hotrodded cars now were originally bought by accountants and secretaries.
Haha, agree to disagree Remy.
A leaf will get no coverage here. Better chances of getting your story in radio stations by building a Lada. And what you describe is the definition of 'ricer' in Europe.
Tha advantage of the Civic is we can start with the bare shell and not add luxury's.
In the leaf we are bound by complex electronics and their weight.
Anyway, the theme is set. So on with building the thing....
And, no they won't 😁
A leaf will get no coverage here. Better chances of getting your story in radio stations by building a Lada. And what you describe is the definition of 'ricer' in Europe.
Tha advantage of the Civic is we can start with the bare shell and not add luxury's.
In the leaf we are bound by complex electronics and their weight.
Anyway, the theme is set. So on with building the thing....
Are you really?
And, no they won't 😁
What luxury items or "complex electronics" are there in a Leaf that you couldn't remove from the Leaf and would not need to add to the Civic to make it run as an EV?
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I just did a search, not expecting to find anything. Sure enough, there's a concept rendering out there.
So...here's your badass rally car blueprint:
![Wheel Tire Land vehicle Car Vehicle]()
So...here's your badass rally car blueprint:
Can-bus, doorlocks, modules, full wiring harness, Abs, stability program, safety electronics, aircon, multimedia, you know...modern technology...
We need lights and perhaps a Heater.
But that's beside the Point. The car is a Civic.
We are not about to create our own Bodykit for a damn leaf.. and didn't everyone say to avoid the leaf batteries?
This is all seriously not helpful
We need lights and perhaps a Heater.
But that's beside the Point. The car is a Civic.
We are not about to create our own Bodykit for a damn leaf.. and didn't everyone say to avoid the leaf batteries?
This is all seriously not helpful
You need CAN-bus communications to operate the Leaf components that you will using, regardless of what car they're in. The rest could be deleted from any EV, and will exist to some extent in the Civic. All are trivial compared to the EV battery. Build what you want; I'm just suggesting that you be realistic about what the result will weigh.
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Stripping a Leaf, including its wiring harnesses is a LOT easier than cramming crap into an equally crappy car not designed to be electric. Rewiring it is easier because you only need to restore the CAN bus, the same wiring needed in the Civic. The HV cables, steering, etc all work & stay.
You're building a moving billboard, not prototyping a production vehicle for Honda. As I said, ricers have been done to death and won't get noticed (what makes it "electric" from outward appearance? stickers? 😂😂😂 )...nobody has done a Leaf - and that creates buzz, aka $$$
You're building a moving billboard, not prototyping a production vehicle for Honda. As I said, ricers have been done to death and won't get noticed (what makes it "electric" from outward appearance? stickers? 😂😂😂 )...nobody has done a Leaf - and that creates buzz, aka $$$
I am NOT building a Leaf.
I did not ask for a business plan.
This is very frustrating.
If the leaf unit is not able to be operated from a single external module we might have to look beyond that. The build plan is still open for change in any direction.
Perhaps the single module approach is possible on a Tesla SDU.
But please stop forcing your opinions on the one part I asked no questions about.
I did not ask for a business plan.
This is very frustrating.
If the leaf unit is not able to be operated from a single external module we might have to look beyond that. The build plan is still open for change in any direction.
Perhaps the single module approach is possible on a Tesla SDU.
But please stop forcing your opinions on the one part I asked no questions about.
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What do you mean by "single external module"? What is that?
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You didn't get a business plan. You got a marketing strategy.
You CAN operate the Leaf from a single external "module" - lots of people here are using the Resolve controller to exactly do that.
You would be smart to have temperature, voltage, and other telemetry to be able to do PM during charging, unless you're show vs go.
The beauty of what we recommended is little to no mechanical design, other than perhaps adding a few modules to the top of the pack to overvolt the motor.
The car would be stripped of everything but its essentials, but the battery pack and drivetrain are as God, and Nissan, intended them to be...that is THE most RELIABLE build convergence in what's been on the table so far and reliability wins endurance races/rallies. Budget and time is better spent elsewhere than cribbing some angle iron mounts up whose welds will break and spill battery guts all over the road course.
What I would do from there is add a few modules to the top of the cell stack to overvolt the HV section by 10-20%. Run 20% overcurrent and you're close to 300HP.
.
Your build plan allegedly is open for change in any direction, except, of course, for that being recommended here by everybody 🤓
That widebody design, by the way, is gluing foam blocks to the car and shaping them with a knife and a surform and carbody sanding tools. The concept pic I found is a great guide and fortunately doesn't have compound curves, though I'm sure you can easily find an artist or bodywork person to do any sculpting quite easily using this method. From there, a layer or two of carbon fiber or fiberglass, some filler, paint, and you're good. Lots of people would line up to do that build as volunteers, vs working on their mom's Honda Civic that doesn't feed from a nitrous bottle.
I will continue to make corrections, like to your module misperception...none of the original Leaf control or operator interfaces would likely remain working and would likely have been stripped and a Resolve controller would run the drivetrain show, like it would have in the Civic.
Unlike the Civic, the work is substantially reduced, and reliability is orders of magnitude higher if you leave the drive unit and battery pack in the car. Chargers, charger port, public charging ability all stay with the car and should continue working.
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