Loaded Tires

[josh6575]

Searched the subject. Nothing found. Anyone tried loading tires like a tractor. Thinking about using windshield washer fluid inside the tires. I am hoping to achieve the fast reaction of light wheels with a bunch of weight. Thinking that the fluid will stay stationary when the throttle is applied. I want that heavy knuckle reaction using a different method.

[TacoCrawler]

I'd think windshield washer fluid would be hard on the tires rubber compound
eventually causing those to dry rot and crack.
plus cause all the screws to rust.
Unless they're maybe SS.

Mostly just water with some ammonia in it.

Maybe put BB's in them ?
they'll roll thru like liquid would.

^ used on bias ply 1:1 tires to help with imbalance issues.

I personally wouldn't want something loose and moving around inside my tires.
No matter what it is... cause that'd just cause more wear to the tire/wheel interior.

Instead... I'd use automotive sticky tire weights and load the wheel's interior circumference.
Then wrap some tape around those so they don't come loose.

The fastest reaction will be with no weight in them at all.

Adding weight, moving or not, requires more torque to turn them.
Thus robbing the e motor of rpm/torque.

No real advantage in using motion inside the tire
Unless yer trying to balance a tire.
And that's rarely an issue on an RC crawler...
as long as the tires are mounted properly to the wheels.

[Chris81]

Adding weight to axles and other low spots will be a lot easier on your drive train in the long run. Spinning weight is going to be hard on moving parts.

Sent from my SM-G900V using Tapatalk

[durok]

I need to find those wheels I saw a while back on fleabay... Had an outer face, an inner face, and on a bearing a roughly triangular alloy part with one corner hanging from the hub. Highly polished and brightly colored.....

You loaded the triangular part with slugs and it would supposedly remain below the hub center while the rest of the wheel spun around it. Ugly as sin. Basically a "spinner" wheel turned inside out, designed for crawling.

If I can find it again I may post a pic in wheels....

[josh6575]

I was thinking that the inertia of the water would keep it still on hard acceleration. Like the little slippery hot dog toys you used to see at the road side rest stores(Showing my age). I don't think that windshield washer fluid would be hard on rubber or it would eat windshield wipers, seals, and paint. Definitely do not want to use BBs. It is very common in off road equipment to load tires with a calcium solution. I know that it is very corrosive but very dense. I am really looking to see if someone has tried it. Guess I'll have to give it a go and see what happens. If is sucks it will be easy enough to undo.

(

Originally Posted by TacoCrawler

I'd think windshield washer fluid would be hard on the tires rubber compound
eventually causing those to dry rot and crack.
plus cause all the screws to rust.
Unless they're maybe SS.

Mostly just water with some ammonia in it.

Maybe put BB's in them ?
they'll roll thru like liquid would.

^ used on bias ply 1:1 tires to help with imbalance issues.

I personally wouldn't want something loose and moving around inside my tires.
No matter what it is... cause that'd just cause more wear to the tire/wheel interior.

Instead... I'd use automotive sticky tire weights and load the wheel's interior circumference.
Then wrap some tape around those so they don't come loose.

The fastest reaction will be with no weight in them at all.

Adding weight, moving or not, requires more torque to turn them.
Thus robbing the e motor of rpm/torque.

No real advantage in using motion inside the tire
Unless yer trying to balance a tire.
And that's rarely an issue on an RC crawler...
as long as the tires are mounted properly to the wheels.

[josh6575]

Those pendulum weight were neat but would swing around when using any speed. Those are old news.

Originally Posted by durok

I need to find those wheels I saw a while back on fleabay... Had an outer face, an inner face, and on a bearing a roughly triangular alloy part with one corner hanging from the hub. Highly polished and brightly colored.....

You loaded the triangular part with slugs and it would supposedly remain below the hub center while the rest of the wheel spun around it. Ugly as sin. Basically a "spinner" wheel turned inside out, designed for crawling.

If I can find it again I may post a pic in wheels....

[whitrzac]

I would try just plane water first.

Even if you go crawling for hrs out in the snow it shouldn't freeze. Moving water doesn't freeze+insulated by the tires.

[WHITE-TRASH]

Beef tubes and knuckle weights are far superior to any form of weight in the wheels. Every form of wheel weight has been tried over the years and abandoned for a reason.



Anyone remember the double phat wheels with bearings behind the outer beadlock ring? PsychoJ-lo still has a set of those relics.

[durok]

I certainly didn't approve of the ones I saw... If I recall correctly, I threw up a little in my mouth.

Bling for bling's sake, coupled with unnecessary complexity and dubious engineering.

They belonged in the offroad hall of shame.

[Duuuuuuuude]

1:1 tires have design qualities that rc do not have, mainly reinforced sidewalls. An rc tire filled with water or bb's will fold like a lawn chair in a wind storm.

It'll do fine until you decide to turn...

[josh6575]

Originally Posted by WHITE-TRASH

Beef tubes and knuckle weights are far superior to any form of weight in the wheels. Every form of wheel weight has been tried over the years and abandoned for a reason.



Anyone remember the double phat wheels with bearings behind the outer beadlock ring? PsychoJ-lo still has a set of those relics.

Knuckle weights are not scale legal. Swapping to two words makes them so. Just trying to find another way to get the same reaction without the parts that are "Not in the spirit of scale". I really like the heavy knuckles yet refuse to use them due to the douche baggery that makes them legal over knuckle weights that were made for scale rigs. I have had a set of those bearing wheels in my hands before. Neat stuff.

[josh6575]

Originally Posted by Duuuuuuuude

1:1 tires have design qualities that rc do not have, mainly reinforced sidewalls. An rc tire filled with water or bb's will fold like a lawn chair in a wind storm.

It'll do fine until you decide to turn...

KLR's have such side wall support. I am concerned that the webbed support would drive the fluid taking away the effect I am looking for.

[Duuuuuuuude]

Originally Posted by josh6575

KLR's have such side wall support. I am concerned that the webbed support would drive the fluid taking away the effect I am looking for.

Nope. Still not like a 1:1 tire.


Try it if you don't believe me. Pull the foams out and fill them up with water and give them a test run. You won't like the results.

[josh6575]

I think the biggest difference in the real thing is pressure. Just no reliable way to do that on a model. I know that it is not going to outperform a good set of C.I foam. I am really surprised that someone has not chimed in with actually having tried it. Time to find some beadlocks without holes in them.

[Duuuuuuuude]

Just tape over the holes in the beadlocks you already have.


There is a reason why most everyone uses foam. Let us know how your experiment works out.

[MogollonMonster]

Anybody ever seen a road grader going down the road at 25mph? The things HOP, bouncing up and down like a jackrabbit on meth. They put water in the grader wheels for traction, yes, but they are meant to work at very slow speeds on fairly flat ground. Centrifugal force pins the water in place at speed, causing an imbalance. At RC crawler wheel speeds, which can be very UNscale, I wouldn't be surprised to see the rig flip right over in dramatic fashion, on flat ground.

[josh6575]

Originally Posted by MogollonMonster

Anybody ever seen a road grader going down the road at 25mph? The things HOP, bouncing up and down like a jackrabbit on meth. They put water in the grader wheels for traction, yes, but they are meant to work at very slow speeds on fairly flat ground. Centrifugal force pins the water in place at speed, causing an imbalance. At RC crawler wheel speeds, which can be very UNscale, I wouldn't be surprised to see the rig flip right over in dramatic fashion, on flat ground.

I have driven some 10,000 Lb lift capable all terrain fork lifts at full speed. A whopping 30 MPH. It could be interesting. It's cold, I am bored, time to experiment. I look for it to pull the tires out of the beads and spew water if it gets going too fast. Should be fun. Scale blow out.

[josh6575]

Originally Posted by Duuuuuuuude

Just tape over the holes in the beadlocks you already have.


There is a reason why most everyone uses foam. Let us know how your experiment works out.

I know. I just like to tinker.

[josh6575]

Finally got them mounted. They are holding fluid very well. I'll put them on a rig and give them a run tomorrow evening.

[TacoCrawler]

curious as to how you filled them... submerged ?

No air trapped in the tire's interior ?

I too don't think the tire's sidewall will be very supportive...
in a turn or if side hilling.
Unless possibly your tires are a thick rubber compound that's not very compliant generally.

But maybe they'll suffice when driven in a straight line.

Let's see how that goes.

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