Question : Wheel covers that rub front tires - ( dangers of)

[Cd]

Originally Posted by cRiPpLe_rOoStEr

Not exactly that what I had in mind, but anyway, makes me wonder to which extent those widened fenders fitted to lifted 4WD rigs could be aerodynamically better than just leaving the tires protrude.

Good point, since they don't cover a thing, and actually ADD drag.

[Joggernot]

Originally Posted by cRiPpLe_rOoStEr

Not exactly that what I had in mind, but anyway, makes me wonder to which extent those widened fenders fitted to lifted 4WD rigs could be aerodynamically better than just leaving the tires protrude.

In Texas, USA, the tires cannot extend more than 1 inch beyond the side of the vehicle. I've never heard of it being enforced, but it's on the books.

[Piotrsko]

Ditto for a lot of states but tire extension distances beyond the body and methods of determining and related compliance of that excess vary. For decades Cali had a minimize tire spray requirement which trucker tire mudflaps exceeded. Barris was noted for his scab on deflectors on his radical cars with xposed wheels.

[cRiPpLe_rOoStEr]

Originally Posted by Joggernot

In Texas, USA, the tires cannot extend more than 1 inch beyond the side of the vehicle. I've never heard of it being enforced, but it's on the books.

Not sure how fender extensions would be considered legal or illegal in Brazil, yet once in a while I see trucks featuring it. BTW notice the solid front axle, which AFAIK was never a stock feature to the 2WD versions of the Toyota Hilux.

[Cd]

This is version 2.0 of the wheel cover test.
Aluminum is in place, but everything is just held on with scews for easy changes.
Even with everything sloppy, I was surprised at how little noise I hear in turns.
The final version will have the aluminum riveted on, and there will be a layer of foam behind it to absorb noise.
So far, it seems to work well.
Initially, I had two braces coming down from the hinge assembly, but to my surprise, it seems to function fine with only one brace on the and one spring.
( Will add another brace regardless, but may go with a single spring.
I took the car on a short drive around the apartment complex, and tried to make extremely wide turns ( People no doubt thinking I was drunk )
I also drove at a good speed over speedbumps.

What do you guys think would make a grinding noise once I apply brakes ? The wheels were straight at the time, and the front end was not compressing downwards, since I was only going maybe 5mph.
Also, I did not hear this same sound when going quickly over speedbumps.
Looking at the skid marks on the aluminum doesn't give me a clue.
Strange, eh ?

BTW, I think I'm going to bang up the back of the aluminum some more.
I noticed there is less surface area that makes contact with the tire that way.
I was thinking that this would also add strenth to the metal, versus a flat piece of aluminum.
Less noise too.

[cRiPpLe_rOoStEr]

Originally Posted by Cd

I think I'm going to bang up the back of the aluminum some more.
I noticed there is less surface area that makes contact with the tire that way.
I was thinking that this would also add strenth to the metal, versus a flat piece of aluminum.
Less noise too.

Not so sure about it increasing the strenght of the metal, most likely it won't work that way, but getting rid of contact with the tire is a desirable feature, as a tire rubbing the aluminium will increase drag.

And even though I'm not sure it would also decrease noise, most likely it would. In some buildings, the ceiling shaped with many convex surfaces is used as a sound-deadening measure.

[Cd]

Originally Posted by cRiPpLe_rOoStEr

Not so sure about it increasing the strenght of the metal, most likely it won't work that way, but getting rid of contact with the tire is a desirable feature, as a tire rubbing the aluminium will increase drag.

And even though I'm not sure it would also decrease noise, most likely it would. In some buildings, the ceiling shaped with many convex surfaces is used as a sound-deadening measure.

My mistake - I meant make it more rigid.

But that's probaly not correct either.
I have observed that sheet metsl becomes more rigid when it has ridges on it.
But these are dimples and may not work that way.

I was thinking the cover would vibrate less if it was dimpled that if it were flat sheet.

[freebeard]

Corrugation vs work hardening?

[Cd]

Originally Posted by freebeard

Corrugation vs work hardening?

Not sure what you are asking.

[freebeard]

Rhetorical juxtaposition of two possible causes of stiffening a sheet of metal.