Top secret Tires for 250mph Sausage RC Car project

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[toddsupraman]

I think you should focus more on the rim design, so it doesn’t have the deflection when it’s spinning. If you can keep the rim true the tire have a lot more lifespan, whether it be a solid strip of rubber glued on or hard foam.

[chriswheatley]

We have a carbon filament winding machine at work, usually used for winding high speed rotors that run at well over 100k rpm. You need a carbon sleeve that presses on over the wheel under interference. The hoop stress will resist that expansion you are seeing, then possibly bond the tyre onto the sleeve.

[dantechunknown]

I was just thinking and came up with a idea. It seems to me that the foam isn't the problem because look how always the inner rim expands. Try cutting 1mm inner side foam and put a fiber or metal ring around it so it doesn't expand.

[davidskala]

The amount of power you have to have to not only strip the inner wheel while still completely blowing the outer diameter off of the rim is absolutely insane 😅 this thing is a rocket! Keep up the great work brother much respect!

[stldiital]

Once again... Get you some aluminum wheels. Drill some holes around them on the inner rim. Dip them in a rubber epoxy compound. The holes will allow the compound to bleed through to both sides and provide support while preventing ballooning. Let them run off and dry sideways for easy clean up and balancing. All you need is the right rubber epoxy compound...

[NovemberFoxtrotRC]

Not sure if he mentions it later in the video but on the first dyno run the wheel itself under the foam tire is expanding as well. Maybe a wheel with stronger material and or more cross bracing inside would help keep the tire together longer.

[Davivd]

I'm so excited for Kevin. He's put so much work into this. I hope that it at least makes a full potential pass without mechanical failure.

[CroftyOriginal]

Tip: Left handed drill bits are really good for rounded off screws. Instead of just drilling them out, 9 times out of 10 they grip and just thread the screw out.

[stephantranquille]

You've got me frothing at the mouth Kev! Seriously can't wait for you to make history. You have invested so much time and money, it's going to happen xx

[lukespector]

I like to think of Kevin as the late Rik Mayall of RC. THE Brit we love to watch 🇬🇧

[STUCASHX]

Kev!!!
Get yourself a set of reverse twist drills for removing screws where you've rounded the hex off. As they bite in they unscrew your damaged screws. Easy peasy.

[Alexandry]

Tires are critical for electric-motor cars, because they have to carry all the power. But crucially, Project Air's jet-powered car puts power directly into the air... its tyres are just for rolling and steering. So this is vital to crack for the motorcars to win

[techienate]

Use larger diameter wheels! Larger diameter wheels will have lower centrifugal force. One way to visualize this is that larger diameter wheels rotate fewer times to achieve the same velocity of the car. Lower RPM=less centrifugal force.

As an engineering student, I'll design you a wheel if you're interested and if you will pay the material and machining costs! We could make a carbon fiber or aluminum wheel, balance it, and attach foam for traction.

[bigkennyg.]

Hey Kev
love your videos!
your a big reason I am getting back into this, you absolutely have an awesome view of this hobby, it’s all for fun !!!
Best of luck to you on getting to that world record 👍🏻

[troypostie]

There can be only ONE Kevin Talbot. Never mind what James and Raz are up THAT RECORD!!!👍🤴👍

[jordantobins]

I think you should really consider larger wheels and then go with either foam or rubber. The larger diameter wheel won’t have as many rpm’s at speed, and you will deal with a lot less centrifugal force. Just build a body with big, smooth wheel arches, and mold them smooth. Sort of like the Batmobile. If you run a wheel that is 5” vs running a 2.5” wheel, it will have to spin 1/4 the speed as a 2.5” tire to cover the same distance in the same time.

[cloudpandarism]

awww just when i want sleep. aaaallright one more video kev!

[sscewqs]

Curious about fire sprinkler system. I've been a designer of fire sprinklers for years. i was intrigued when you mentioned your system.
is that a compulsory system? or did you install, or have it installed ?

[cyclemadkiwi]

As below, a nice set of CNC machined Ali (7075 grade) rims (couple sets to change out) and get them into a mold to skin them with PU!
a good 95shore Polyurethane molded onto the Ali rims will make this thing really haul ass!
Coming from a background in racing control line planes over tarmac (Barkston Heath Airfield being one spot!) we use a hard tooling grade (Red) Polyurethane for the tire and it takes a beating.
Just an idea

[simonork]

Have you considered modifying some skateboard wheels to fit? I guess you could mill out the centre’s to fit hubs inside, there’s a massive range of “A” hardness ratings to suit the grip you need plus I’m guessing the extra weight might help with stability?
Just a thought?