Homemade Buggy - Electric Crosskart: Limited Slip Differential Kit
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- เผยแพร่เมื่อ 4 เม.ย. 2022
- Homemade Buggy - Electric Crosskart: Limited Slip Differential Kit
Day 1 of reassembly after painting. The first thing I needed to do before the wheels could go back on the electric buggy was to install the differential. But I needed to make a modification to it that I didn't have the chance to do in the previous drivetrain video. In this video I show how I installed a poor man's limited slip differential kit in the Honda CR-V open differential that I'm using for the electric buggy. If you don't know what a limited slip differential is or how it works, check out the video below from Lesics:
• Understanding Limited ...
This modification works like a clutch pack to cause both rear wheels to lock up like a solid rear axle and dig in for more traction if one tire starts to spin too much or I want to fool around and do some donuts, but it'll also allow the differential to function like an open diff so that each wheel can turn at different speeds when cornering normally to prevent understeering. I had to do some light grinding and sanding on the gear faces to make things work, but only needed to remove ~0.2-0.3mm so there's no risk of weakening them, but if you do this then keep in mind that the device works by gripping against the bearing faces, so the flatter they are, the better.
LSD kit:
www.ebay.ca/itm/324197731749
Electric motorbike build:
• Build An Electric Moto...
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Please could you explain how this device works, I could see its spring loaded when you popped those retainers off, but that couldn't possibly be enough presure to prevent the wheel with least traction from spinning, does the spider gear shaft cause it to wedge open and apply more pressure in any way? Very interested to see how this device works. Thanks
"does the spider gear shaft cause it to wedge" - pretty much. The springs keep just enough pressure to connect with the gears so that when one spins too hard/fast, the two halves of the device twist and the oversized, oblong hole that the shaft goes through causes the halves to expand apart, locking all the gears as if they were welded together. It's not perfect, I read somewhere that it's only ~75% effective as an LSD, but it's better than strictly open or a solid shaft. Phantom has an animation video on here somewhere, showing how it works.
What a beautiful piece of machinery. Good video, thanks.
Thank you so much for all your videos . Loved them all . So nice to learn some new stuff while being thoroughly entertained.
Really looking forward to seeing you take the buggy out on its first test 👍
Thank you for sticking around for 2 years bud, I'm glad you enjoy the content!
@@JamesBiggar I was just reading through the comments. You definitely have the patience of a saint with some people , I was laughing.
And honestly the journey we take with you on all your projects is so interesting but like you wrote some people just want the spinning wheels .
Wow man this whole build has been amazing! Thanks so much for sharing it! About to watch the next part now lol
Thanks Todd!
Waiting for the final piece of art ....
Differentials, amazing things
Enteresan. Usta ellerine sağlık.
This precision and this way of being meticulous in your work are the reasons why I follow all your videos. Yes!
i agree
Driftwood seems upset that I'm not as experienced or smart as they are. I guess they're going to be even more upset when they realize it doesn't matter. Too much time in the machine shop makes you too dependent on the machine I guess.....But what do I know? I'm just a stupid journeyman. Hail Driftwood, the infallible machinist/engineer.
@@JamesBiggar I don't think there's any need to waste your time and energy responding to this kind of nonsense. These know-it-all gentlemen have never designed even a sewing needle, but they immediately become Albert Einstein or Thomas Edison when others design something, always spitting their venom.
Don't get it twisted brother, I don't like ass kissing either, and based on my actions it should be clear that I do as I please, not as others suggest, want or demand. I seem to have to remind people everyday, whether they're brown nosing and calling me a genius in hopes of getting some sort of recognition or jumping down my throat and calling me an idiot thinking it's their job to keep me humble, that I'm just a carpenter with a passion for learning new things and challenging myself and sharing that experience with others for whatever benefit they can get from it, I'm not a pro in any other field, I don't pretend to be nor do I need to be to do any of this. Seriously, I'm building these projects out of my home workshop, not a million $ machine shop lol. It should be evident what my limitations are. But the bottom line is that anything I can do with just basic tools, anyone can do better...if they try. Plenty do. That's all I hope to inspire here if anything, and by example. Being able to pay the bills at the same time would be nice, too. 'Experts' are more than welcome to share their 2 cents, many do follow the channel and offer advice everyday. I don't mind criticism or advice, I welcome it so long as it's constructive/genuine, would make a quantifiable difference for the better in some way and you're not being pompous asshat about it. Otherwise it's just a self congratulatory waste of time. Appeal to authority is a logical fallacy, after all. I'm not here to stroke your ego anymore than you're here to stroke mine, and you don't need to be worried about me controlling mine unless yours is tripping for some reason. In which case, check yourself, dude. With that said, I'm not going to ignore people who take the time to give a compliment and encourage me to carry on anymore than I'm going to ignore your criticism. Engaging with the audience is a necessary part of maintaining a loyal audience if a person expects to grow their channel. You'll notice that nearly everyone gets a hearted reply, even those who offer constructive criticism in past video comments. Just the way it is. Thanks for chiming in and being one of the self appointed daily reminders on here that I need to be careful not to let anyone else boost my confidence too high. God forbid...
@@JamesBiggar Sorry if I went a little too strong in my words. I am only a French-speaking Architect and 3D Designer and I have a deep passion for DIY and technology. Watching your videos is a source of inspiration for me, since I do it from time to time at home. But never, never will I allow people who don't know me anywhere to disrespect me. I'm not an ass licker (and what would I gain by doing that? LOL) I just appreciate a job well done by a talented guy. And I don't give a fuck whether some people like it or not.
Sorry again for my strong words and my bad english...
Great 👍
Thank you 👍
❤️
Can it be used in Suzuki samurai 4x4
Do they make these for Yamaha golf carts? I NEEEEEED one for my G9!
Me too.
Sorry, I'm not an expert on differential mechanics, I understand the principle... but what is this modification you did for?
See title, description, and end cards for details and videos.
@@JamesBiggar You don't have clutch pack in your differential , that metal box just making metal shavings and no locking when need . Try to turn axles and you will see .
That looks like a very simple install, I have put some lunchbox lockers into Suzuki vitara axles with great success. I hope that this type of friction plate works for you. I didn't see if you used threadlock on the crownwheel bolts , if not then I'd check them after some use and re-torque them . If you have any problems with this diff then you can use a diff from a JDM MK1 Eunos, Mazda MX5 which has an ATB type diff and works extremely well in lightweight vehicles. This buggy uses the Mazda diff th-cam.com/video/jh_bY_yzREU/w-d-xo.html
Won't grinding down the gears a guesstimate amount make the LSD mod less effective?
Not as long as they're flat and the front and back faces are reasonably parallel - hence the reason for following up the grinding with flat sanding on the bench. There's some room for error because the device is spring loaded. As long as you can fit it in the space and the gears are flat, then the springs take up any slack and ensure good contact 24/7 once those clips are popped off the ends. It's not as sophisticated as a conventional LSD diff, but it's effective. Grinding the gears is a common requirement for this mod.
Either way it doesn't matter in the least from my perspective, especially since the OEM came from a scrap yard. But if we're going to be anal retentive about it then for argument's sake I would say because this is the recommended method by both the manufacturer and the pro's who use this kit in their racing machines, which is likely due to the aftermarket part not being as thick as the gears and will be experiencing loads in more directions than the gears, so it makes less sense to weaken it vs shaving 0.2-0.3mm off the gears. I don't care if you're an engineer or not bro, if that hurts the OEM in any way regarding strength or performance with or without the mod, then it isn't designed very well 🤣
Strawman. You didn't answer my question. Explain how shaving a fraction of a mm off the faces of those gears is going to make any difference in their performance and strength in any way compared to shaving it off the thinner aftermarket part. Aside from the machined gear teeth, both are obviously die casts. How are die cast molds made? With precision milling equipment. So I'd say the tolerances are more than close enough for the goal. The basis of your argument is in maintaining precision. What's the difference if I take the grinder to the aftermarket part or the gears, other than increasing the risk of breaking the thinner part? Still results in the same finish. If your argument hinged around me using a grinder INSTEAD of a milling machine, then I might cut you some slack. But you're just being nonsensical and making assumtpions. Of course precision matters. But some morons are more skilled at using a grinder for precision work than other morons who rely on milling machines to overkill.....
But hey, smartasses are plenty. Do you boo, that's all you need to be worried about.
Thank you. That wasn't so hard, was it? Much more useful than smartass fuckery lol.
How much hp you running on your buggy? Wondering how much hp this lsd holds up yo
It's made for a Honda CR-V, so it'll handle the hp of a Honda CR-V ;)
Is this alteration reliable ??
Yes. Not as good as a true LSD, but it's effective and I haven't noticed any problems yet.
How much did you pay for the differential
$2
$200 from the scrap yard.
Where can i get this part?
Depends how much you want to spend. You can get them from Phantom Grip for around $300, or on Ebay for around $30 (I bought on Ebay):
phantomgrip.com/shop/
www.ebay.ca/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=limited+slip+differential+kit&_sacat=0
opinion now? is good?
Yes.
@@JamesBiggar Didn't it loosen pieces of metal with the friction?
Let's approach that question from a different perspective - didn't the friction plates in the clutch pack shown in the differential create particulates of resin, metal, oxides and compounded rubber as they wear when it's engaged, despite being surrounded by lubricant? Don't the cast iron piston rings in an engine slowly wear down over time and deposit metal particulates along with soot from combustion in the oil, necessitating regular oil changes and eventual engine replacement or retiring the vehicle completely after a few hundred thousand km's? The answer is yes, and the reason not to worry is the same provided maintenance is done properly. They use materials engineered for the job in each of these cases. Friction plates are a blend of metal powder and composites to extend life and prolong inevitable wear. Piston rings are usually cast iron because it retains its shape well under heat, load and dynamic forces which is important for making a seal between them, the oil and cylinder walls. That LSD jig that I used isn't made from standard mild steel. It's AR400 abrasion resistant high carbon steel, similar to the gears surrounding it, and the part is replaceable just like a clutch pack and piston rings. Ie: the wear is too miniscule to worry about between regular servicing unless you forget to fill it with fluid...
Why doesnt your channel have a notification bell to click?
Edit: NM had to click subscribe first.
IL EST OU LE VULTECH DIFFERENTIEL ???
?
@@JamesBiggar So glad you read my comment ! It is a joke about a French TH-cam Channel named Vilebrequin, which is by the way extremely funny and also it is the biggest European TH-cam Channel about Cars ! The joke is that they have a concept of video which is named "Vultech", where they explain how car parts work, and all of their subscribers always ask them a Differential Vultech. But it has never been released because it is si hard to explain how it works. By the way I am french, I love your channel and I follow you ans watch all your videos since the windmill. It is called "une éolienne" in french and you definitely should check out Vilebrequin Channel to learn French ! Keep up and have fun with the four-wheeler !
@@joprieur7718 je ne suis pas le seul à parler le français ici 😂 Sinon moi également je suis abonné à Vilebrequin et à James Biggar 👍🏾
J’adore la bricole
I speak some french (I live in a bilingual province), just wasn't sure what you meant by a vultech diff - never heard of it before lol.
@@JamesBiggar LONG LIVE CANADA ! :)
And I thought building my own PC was impressive... 🤦♂️