There are no good tires to "stretch" as you are operating the tire beyond it's recommend specifications. The wheel width recommendations are for safety concerns.

 

actually a lot of tires have proven to be quite effective in being stretched


man was never meant to fly... but look at him now

lmfao

 

nor was man ever meant to inject anabolic steroids and have 26 inch arms but look at you now, dre.

 

 

Can you give me links where any nascar/f1/scaa/BCC teams stretches tires beyond the recommended levels with success?

 

Our position on "S-t-r-e-t-c-h-i-n-g" is one should not! Most if not all of the information presented in this tread so far appears to be fact supported by either documentation, i.e., manufacturer's specifications, real life experience. So I am sure for those that have successfully stretched their tires without issue feel comfortable with their decision, however, as pointed out in some of the post's, the rim width range is a fixed number assigned as an international standard and as such it is recommend by all manufacturers, regulatory bodies and the D.O.T. that it be adhered to.

FYI, as a final note not to be taken lightly, deviating from the published recommendations, specifications, and/or industry standards may have an impact on the validity of your vehicles insurance in the event you are involved in an accident!
__________________
roger@tirerack.com
Sales Representative

 

point being, do it at your own risk bearing in mind that many have done it with great results

just make sure to keep up your psi (which actually is the leading cause of bent rims not the actual stretch itself)

 

Do you have any data that using a stretched tire signficantly improved the performance of the car vs a non-stretched version?

I'm sure using 4 lugs vs 5 would also be sufficent in many cases. Doesn't mean it's a good idea or the safe thing to do. Heaven forbid if that ever becomes a fad.

 

never made the statement that stretched tires were for performance, they are however used by drifters for.. drifting purposes

but I'll be the first to say that they negatively impact performance but then again at least the way I see it is, if I was so concerned about performance I would have chosen a different car

 

Then I have to ask "effective" in what then? Because it's sure not safety.

It's just looks at the price of safety. I understand that. But it's not really any more than that.

I think the Japan drift crowd used them as it was cheaper to use thinner tires than having to buy the wider ones all the time (guess)

 

mainly to fit in wheels that were not meant to fit in to be brutally honest

the tire stretching thing actually has its roots in german crowds who wanted to have a wheel setup but laws prohibited the tires from sticking past the fenders so thus tire stretching began

i don't know about the part of them being cheaper, you can always get cheaper tires that don't last as long and respond to stretch better and save money that way

 

LOL @ safety. Anyway PLENTY of people stretch tires, there's guys that run such stretched tires they have to have the psi at 150... The stretch the OP will be doing is mild anyway..

 

yah that stretch is basically nothing

but yah damn 150 psi, I thought I was cool at 45 :-(

 

150psi???? are you guys retarded?