Tuneko aerodynamic wheels
 

I have been doing testing of various wheels and tires since 2008 and in the past years my biggest dream has been to make my own wheel and tire model for electric vehicles.

At the moment the test tire size will be 195/60R18 Michelin e-Primacy and first test car Tesla Model Y where I have calculated the new wheel and tire solution will save 16% of energy.

https://scontent-ham3-1.xx.fbcdn.net...ng&oe=64733561

Made a presentation on the matter here:
https://www.slideshare.net/Tuneko/tu...mic-wheelspptx

I have calculated and estimated these will save about 10% of energy on all EVs that are running similar +-5% diameter size tires than what these are. would you be interested to get them for your EV if my calculation will be proved in the coming months correct in the Model Y tests. Same test wheels will be tested also on Model 3, but that car I havent yet found for the tests that will be carried out in Finland.

tires / wheels
 

* Very often, it's reported that the 'larger' wheels on BEVs come with a 'penalty' to range.
* And a number of researches have confirmed the efficacy of 'aero' wheels as pertaining to range improvements.
* So you're firing on all 'rotors'!
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If the numbers pan out, I could see the potential for a 'market.'
Zip-tied cardboard and Coroplast is one thing, but an effective, affordable, OEM 'look' wheel cover might find broad appeal.
The narrower tire section, if it can handle the load rating, is something Mercedes-Benz has exploited on their EQXX concept.
That's 'three boxes' you've checked.:thumbup:

You missed the second most important benefit that car will become quiet like a cat with the new narrow tires. When that happens you can in theory lighten the vehicle elsewhere. Problem usually is how to make the doormirrors etc more aerodynamic to get rid of the wind hizzle.

That will also impacts wind noise from tires.

Almost always also ride quality improves due to taller tire profile

'quiet like a cat'
 

You'd be disappointed driving in Texas.
On asphalt roads, paving contractors are using gravel aggregate so large that, the noise from the thrumming tires is so loud that one might pull off the roadway to inspect the car for something mechanically wrong.
And on concrete interstate highways, the drainage channels cut into the surface, depending on their orientation, may generate road noise so loud that you may also feel that there's something wrong.:o

Finnish roads are propably not much worse. When they build here new tarmac car still does not go straigth as it jumps up and down all the time.

That is one of the reasons why there is new tire that needs to be made. New tire will come, but that new tire model will be a topic of its own when time is rigth.

First is to make sure the energy savings are there after that, find investors and money to make all the necessary things that are currently wrong in wheels and tires as there is many design errors or flaws if your goal is ultimate efficiency and comfort etc. Track driving is not the main goal, but best setup will also be tested on the track use to see how fast or slower new setup is on dry or faster on wet.

https://scontent-waw1-1.xx.fbcdn.net...2w&oe=6471A2A7

New fixing method for the 3d printed covers is invented for the prototype wheels for the tests.

Next test video is out.
https://youtu.be/Iv_Jk086V6w

savings are over 10% already even still need finetuning.

next will come 195/60R18 to 7,5x18 wheels
and 215/55R18 to 8x18 wheels
try to get also model y perf set for the tests to have more material to compare in the moose tests etc

and those performance tests will also follow

I only watched it once. More interested in lighter cars.

What's a 'capsel'?

Capsels aka wheelcovers or in this case flat disc.

All comments and likes on the video help to get it more visibility at YouTube so shoot guestions there also.

Had to make that video 3 times as video editor kept crashing down all the time :/

I'm a lurker at Youtube just like most here.

--Currently Active Users: 1041 (5 members and 1036 guests)--

Here on Ecomodder I support tall and narrow. Mostly i3 tires on MG-TC or Ford Model A 19" wires, for cars in the one ton range. Like this but with 19s:

https://ecomodder.com/forum/member-f...9-100-0138.jpg

How does the comparison between Hankook and Michelin tires translate to your proposed tire?

That 195 size cannot carry enough load on paper. With 65 profile it gets too big.

At the moment planned size 205/60r18 or close to that. At the moment they make only few winter tires in that exact size.

When you go narrower you can redesign tread pattern little bit differently, but that's finetuning.

With readjusted tire deflectors savings should be 16% range

More wheels and tires are being bougth for the next tests:
Now I have 2 sets 195/60R18 e primacys.
215/55R18 Continentals
For those I have 7x18, 7,5x18 and 8x18 wheels to see which strech is best for handling.
205/60R18 vredestein are being bought next.
215/65R17 Hankook Ventus S1 EVo3 EV . This will be interesting size as the compound and the tire outside diameter is same as Tesla Hankooks (very close same compound). These will most likely come to 7,5x17 wheels.
I am also little bit tempted to buy 205/55R19 eprimacys, but there 8x19 wheels are tricky to get secondhand.

All tires are A rolling resistance except the continental is B and the OEM 255/45R19 Hankook Ventus S1 evo3 EV will be the reference set.

My prototype in test:

• car wash - no problem
• 100 mph (160 kph) - no problem
• standing water (not done, yet)

https://ecomodder.com/forum/attachme...p;d=1696568699

Lessons learned:

• ZIP heads holding pizza pan on the inside of tire
• buff painted surface to dull surface to match tire
• paint and buff "road rash" on correct wheels
• paint and buff wheel inner hub and lug nuts
• chest mount LED light at night

I'll do two series of three-speed benchmark: 30 mph; 55 mph, and; 75 mph. The first without the wheel covers and the second with.

Bob Wilson

Finally got protowheels with similar looks.
https://youtu.be/MYWfjHEfvG8

My instructions how to make those blocking plates as easy as possible with very nice looks:
https://youtu.be/GK01mFnBK6k

https://scontent-fra3-1.xx.fbcdn.net...JA&oe=6643BB1A

If you are using acrylic sheets which are in correct color then you dont have problems with paint not sticking which was my biggest downfall with 1mm thick aluminum plates that I painted, and glued and just few weeks of driving paint started to come off. Plates are still there as you migth have seen from other videos.

https://scontent-fra5-2.xx.fbcdn.net...dg&oe=6643DE94

How they should look when finished.