Stretched tyres

[jarrus]

it almost look like a TVR from the front,

Weren't those p zeros used on the f40?

[Jagz]

Yes and the wheels are the same as the F40

[Prince]

I'm liking that mate. I think a project thread needs starting...

[xavier]

x2 would be good to see a full project thread on this, a lot of work has gone into that.

[Jagz]

Hmmm I did that car over 10 years ago, I do have a lot of pics still I might be able to rustle something up.

[Prince]

Originally Posted by Jagz

Hmmm I did that car over 10 years ago, I do have a lot of pics still I might be able to rustle something up.

I'm sure a lot of members would appreciate it. Thanks!

[RacerZ]

Like a lot of trends, this one is not based on an intelligent decision. The tire can easily unseat from the rim.

The sidewall can no longer flex as expected by the suspension designer. You loose both performance and comfort. You loose comfort because the sidewall cannot cushion the bumps.

This also puts the rim in jeopardy of touching the ground as you drive over normal bumps and pot-holes. When this happens, both the tire and rim are susceptible to road damage. Blow out at 50! (mph) Not a fun thing.

The rule of thumb is: The rim width should be the same as the tread width. Each tire manufacture does have an optimal rim size for each size of tire. This includes a window of acceptable sizes both wider and narrower. Most tire manufactures have this info posted on their web site. Tire Rack http://www.tirerack.com/index.jsp has this for the tires they sell. If you want an education on tires, Tire Rack has one of the best tire edification sections I've run across.

If you're building a trailer queen show car and this is the look you want, that would be one thing. But if you're planning on driving this car, don't do it. You put your life at risk as well a mine. And I don't want to die cause of some idiot's boneheaded decision.

[Simonedi]

the one thing that gets me is the assumption that "modern materials and designs" are assumed to be up to the job when stretched. That seems like a massive massive amount of short sightedness to me, and an assumption based on a total lack of evidence.
New materials are certainly more robust than older ones, and modern tyre design is also better but this does not mean they will be suitable for a use they were not designed for, i can see a small stretch being ok but a huge one as a recipe for trouble, or putting the car into a wall

[BlueCruiser]

they look good for shows, and the drift cars use them on the back (you can buy manufactured stretched tyres here in new zealand) the manufactured ones have the stretch look, but with a proper fit and abit more of a sidewall. but if you just get a standard tyre and stretch it then you can run into the problems of them coming off as they arent exactly designed to sit that way and will naturally want to pop back into their normal shape.