Search found 363 matches

by Zieg
Mon Jun 23, 2025 3:50 pm
Forum: Open Tasks
Topic: Take over responsilibility for inverter development
Replies: 7
Views: 1028

Re: Take over responsilibility for inverter development


- I am actively working on getting the education I need to start helping develop new boards - specifically to work on stuff that's only or primarily available in the North American market.


Would love to help with stuff like that where possible. Especially for racing applications, lowering the ...
by Zieg
Sun Jun 22, 2025 8:29 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Got the tank replaced, the new one was a pain to clean out and I had to drop the old one with around 10 gallons still in it, but I got it done. Seems the cradle does still use a formed part with rubber lining to act as a strap, and yeah that's where it rusted. Not sure what to do with the stupid ...
by Zieg
Sat Jun 21, 2025 5:00 pm
Forum: Getting Started
Topic: Bench test hardware
Replies: 3
Views: 221

Re: Bench test hardware

Contactors and a precharge resistor, and depending on the wiring situation you might want a bunch of extra pins to populate your connectors for bench testing before doing the final wiring in the car.

Incandescent bulbs or stove heating element for verifying polarity?
by Zieg
Fri Jun 13, 2025 5:22 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Okay, so I borrowed the heated ultrasonic cleaner, ran the carb through two cycles of that, and the generator runs like new. Starts on the first pull and it nice and smooth. Somehow, it even sounds quieter - maybe because of the valve adjustment.

I made a fold-down shelf that will serve double ...
by Zieg
Fri Jun 06, 2025 8:53 pm
Forum: Nissan
Topic: EM57 as a generator head?
Replies: 7
Views: 5039

Re: EM57 as a generator head?

No you'll need 12v to fire up the logic, there's no connection between HV and LV systems in these things.
by Zieg
Thu Jun 05, 2025 3:56 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Oh yeah I did the plug, air filter, all that too. Apparently Simple Green Pro HD works pretty good to soak it.. I'm also at 3500ft so right on the edge of needing the high altitude jet. And Montana is like 4000'. Stupid combustion engines. :D
by Zieg
Thu Jun 05, 2025 3:07 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Oh that bracket is a great idea, thanks! I had been spending all my time thinking about the bar, hadn't thought about the links too much beyond 'I don't look forward to flattening this tube'. I think I should be able to mill those out of aluminum without too much trouble.

I'm also on a bit of a ...
by Zieg
Thu Jun 05, 2025 4:31 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Hm, good point, the bushings will have some give. I might be able to model that directly, have to look into it a bit more. Else I will just model up the bushings and do as you suggested. I also like the idea of the pipes that have the swaybar run through them and then bushings at each end, makes it ...
by Zieg
Thu Jun 05, 2025 12:49 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Hmm, I started modeling the bar in CAD and I'm not so sure about the result. I got a good rule of thumb that the bar should have a spring rate of about half the wheel rate, so I'm experimenting with different concepts. Found some torsion tubes that look promising but I think the biggest challenge ...
by Zieg
Sun Jun 01, 2025 8:13 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Okay, good point about mounting it on the inside of the frame. I thought that would have it too close to the pivot point but on a second look, it's actually better. Thanks for that (and all the advice and input). I cut the bottom part off one of the cycle wing brackets and it is going to need to be ...
by Zieg
Sun Jun 01, 2025 3:37 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Well I've seen some kits with just 1026 DOM tube, which is what I bought. It's also recommended on some Locost forums so hopefully it holds up. I did run a quick calculation of shear stress at max deflection and it seemed ok. I guess welding close to the twisting part of the bar is still not ideal ...
by Zieg
Sat May 31, 2025 8:45 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Yeah I made a spreadsheet somewhere but the other problems I discovered is availability and the limita of my crappy ram-type pipe bender. The 1/2" ram did ok bending a scrap of 3/4x.120 but when I tried .065 it just kinked. Grabbed myself a piece of 3/4 sch80 that I can bend and then cut out the ...
by Zieg
Sat May 31, 2025 2:25 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Ah, admittedly I don't really understand how the OI charging works, but the rulebook also has a few things to say about charging - including something about using common charge ports with an EVSE and the BMS has to control charging and all that. I'll double check though, and maybe I can add some ...
by Zieg
Fri May 30, 2025 6:30 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Okay, haven't had much time to work on the car this past week but I have been able to do some research.

Update on the Cusco diff, I spoke with Cusco USA and they told me this diff only functions as a 1-way (no cams for 1.5- or 2-way). However, they did say they confirmed it will fit the Leaf ...
by Zieg
Mon May 26, 2025 10:07 pm
Forum: General
Topic: Research Study on DIY EVs
Replies: 4
Views: 1782

Re: Research Study on DIY EVs

I did last time, but happy to do so again if it would be helpful. I've also got more mileage under my belt now and I suppose maybe a slightly different perspective.
by Zieg
Sun May 25, 2025 11:50 pm
Forum: Nissan
Topic: Bench test - Leaf with OI board (v3) and zombieverter. Spins a bit then stops until manual intervention
Replies: 12
Views: 4671

Re: Bench test - Leaf with OI board (v3) and zombieverter. Spins a bit then stops until manual intervention

Find one Johu has recently attached to a post here and that'll probably get you like 95% of the way there. Remember you'll have to tune your individual resolver offset no matter which one you use.
by Zieg
Sat May 24, 2025 2:21 am
Forum: General
Topic: Research Study on DIY EVs
Replies: 4
Views: 1782

Re: Research Study on DIY EVs

Is this another round with the same questions as last time, or are you looking for new info?
by Zieg
Thu May 22, 2025 4:44 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Oh, yeah actually my shocks do have a rubber bumper on the rod that I could move down and see how far it goes after some hard cornering. Is anti lift controlled by the angle of the upper wishbone? I'm pretty sure I set those level. I could adjust it but I'd have to cut the brackets off and reweld ...
by Zieg
Thu May 22, 2025 4:41 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Not sure you could adjust a helical diff at all, unless you got creative with shims maybe.


Doing some digging and apparently Cusco makes an LSD for the note e-power. Now the Nismo catalog seems to indicate the Nismo LSD is the same between the Note/Leaf and just the seals are different. I wonder ...
by Zieg
Tue May 20, 2025 9:48 pm
Forum: Vehicle Control (VCU)
Topic: Leaf Gen 2 Drop in board ?
Replies: 13
Views: 1266

Re: Leaf Gen 2 Drop in board ?

Running the latest software on mine right now and all is good.
by Zieg
Tue May 20, 2025 8:59 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

I have a theory about that too. When braking near the limit and the regen torque locks a wheel, it's going to be the wheel with less grip. In a straight line it might just be the one with less weight on it, and very likely the same one that would spin when accelerating in a straight line. The ...
by Zieg
Tue May 20, 2025 4:14 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Hmm, lots of different opinions on RC that I can find online. I don't seem to have recorded my reasoning in my design notes, but checking my CAD files it looks like I've got a front RC 3.7" off the ground and the rear is 4.7". I guess my CG has changed too, need to factor that in. I did have to ...
by Zieg
Mon May 19, 2025 7:28 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Just got back from an event in Montana. Had to move quickly to get ready and didn't have enough time to get everything 100%, but I made it work!

I found a 6pt harness locally that I was able to install. It's not DOT, but I'm leaning towards not driving the car on the street anymore anyways. Before ...
by Zieg
Sun May 11, 2025 3:41 am
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

So my wife talked me out of the platform idea because she wants a hammock for the yard. I couldn't figure out a good way to span the back bay so I was about to buy some hinges and make a folding table that would work as a bed, but I guess the hammock is less work. I didn't realize you're supposed to ...
by Zieg
Thu May 08, 2025 9:27 pm
Forum: Projects
Topic: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!
Replies: 139
Views: 55051

Re: [Driving] Homebuilt Locost 7 - from Motorcycle engine to Leaf power!

Oh, E-track, okay! I think i have some of that laying around from my last trailer. I'll see if I can find those bars - never knew those existed!