jubee

Wow awsome answer you must not know your self.

garagespec

that rear setup on the white gti or whatever it is looks so sick. But it is kinda pointless and dangerous. I have a show car that I have a 215/40/18 over a 10.5 in the rear. But I never drive it haha (#Imscared)

lbs_ft

Fuck man, does your computer not have spell-check or something?

I would love to do my best to answer your question, albeit I can't understand it.

lbs_ft

I might as well contribute.

205/45/16's on a 10 inch wide wheel.

Oh, and daily driven.

fckillerbee

are you really trying to understand why people stretch tires...or are you wanting to be called a troll?

The Dude

Like I said before; do whatever you want to with your own car, as I don't give a shit.
Who said anything about lifted trucks?

fckillerbee

Who said you had to benefit from something in order to do it?

Whats the benefit of streching tires?...probably the same as lifting a fucking two wheel drive truck bro....get out of this thread already if you aren't contributing.

The Dude

Fine, here is my contribution: Don't stretch your fucking tires, it is unsafe, stupid, and makes your car handle worse. You're welcome.
Punch yourself in the balls...it makes no sense and doesn't help anything...why not do it?

fckillerbee

it's unsafe: please tell me why
stupid: clearly an observation
makes your car handle worse??!!!! my car came with 205's stock...it definitely handles better than stock with 225 40's.

punch my self in the balls....how about you provide me with real tests about stretching tires and when it becomes compromised.

doesn't help anything? sure.....my stretched 225 now has a larger contact patch, so it actually saves me money drifting vs buying a 245 tire at a more expensive rate....huh.


drift cars have been drifting on streched tires for over 10 years......clearly it's unsafe.

DeleriousZ

Mild stretch will pre-stress the sidewalls, giving even more predictable traction to traction loss transition.

YugEuro

Thanks man. Actually I've been running that setup for about two years now and I haven't had a single issue. I can't say I track my car because I don't but I drive it daily and I've hit potholes and the tires have help up. Clearly there is a increased risk however if your smart about it you shouldn't have issues. I've had worse luck following rules.

The Dude

I'm sure I'll take heat for this, but the manufacturers have a specified tire size for rim width for a reason. You're stretching the sidewall and deforming it in a manner they haven't been designed for. If you underinflate your tires you can break the bead, but how do you know what the correct tire pressure is for an "extreme" stretched tire? How do you account for tensile stress on the sidewall? I don't need to provide you with "real tests" because the manufacturer tests their own tires and tells you the proper size range for your wheel.

Do I think that most people are going to blow out their tires when they are stretched? No, but since most people here stretch tires because it "looks dope" I can only assume they have no idea what they're doing and probably just say "that'll do" for their tire pressure.

Are you saying that by stretching your sidewall you are increasing your contact patch? Not sure I understand your logic if that's the case...

SmokeCircle

The Racing and High-Performance Tire, Using the tire to Tune for Grip and Balance, Paul Haney, 2003, co-published by SAE and TV Motorsports
pp.99-101

Selected quotes from an interview with Jim Hall and Brian Redman. Racers from the '50s and '60s:

Jim: “We had started runnin' skid-pad tests, just going round and round on the skid pad. We got good at it and we found out we could balance the car this way. It was a little bit more technical than we could figure out. It would go up to 0.98 Gs one way and only 0.92 Gs the other way. So Firestone told us their tire was built to run on a 7-inch wide rim. I had built some modular wheels and we could vary the width by what mid-sections parts we used. We'd run the tires they gave us on a 7-inch rim and maybe an 8 and a 9 too. The wider rims made the sidewalls stiffer and instead of running a 0.95 average G you'd run a 0.99. So of course we put them on 9-inch rims. Well, we'd go to the next race and the Firestone guys would look and them and say, "We didn't design those tires to run on a 9-inch rim. We better build a new tire.‟ They'd add an inch to the tread. They'd do them quickly too. They can build prototype tires in a hurry. In a couple of weeks they'd have another tire. And we'd run on a 9-inch rim and a 10 and maybe an 11. And we'd find it was better on a wider rim, so it would happen all over again. In a matter of less than a year we went from those narrow little Dunlop Green Spots to a tire that was almost double the width. So that's what happened with me on tires. In the middle '60's, probably '64 or '65, Firestone took us from less than 6 inches of tread width up to 12 inches.”

Paul: “Just because you kept skidpad testing them on wider rims?”

Jim: “Right.”

Brian: “Speed on the skidpad is speed around the racetrack”

Jim: “Cornering speed is the key to everything. You can have more horsepower but you got to stop it at the other end. But if you can leave the corner just that much faster, you carry that speed all around the racetrack. The whole thing is cornering speed, basically.”

mikeys13

Thats very interetesting, I guess that's some what a way of saying theyre fine.

The Dude

It's 2012. We have low profile tires with stiff sidewalls now. You no longer need to stretch your white-walls to go fast at the track.

lbs_ft

No you don't, which is why fckillerbee so elegantly explained why we do it.

It looks good and all the ladies love it - case in point.

Redstar

Pretty good stretch. 235/40/18 Falken FK452s on an 18x10.5.

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zbarsuglia

This quote definitely tickled my sack hahahahahaha and made my day

fckillerbee

"Wider wheels will give you a more rectangular patch, while thinner wheels will give you a narrow yet longer more square patch. The thinner wheels will therefore be better (and of course there are extremes in both cases) for straight line acceleration and braking. The wider ones, because of the direction of the forces on the tire tread in the corners, will be better for cornering at the expense of some straight line acceleration. Unfortunately, it’s not quite that simple for say road racing as whatever gains you get in cornering, you’ll probably give up in the ability to get back on the throttle early. Something you would need to test and tune for sure, no guaranteed rule of thumb there."

Wheel Tech, Part II: Width Matters | Tuner University

my car is designed for drifting...so cornering grip is all that matters for the rear tires. goes from a square patch...to a rectangular patch (better for lateral g's).

ahh thank you.

The Dude

So why not get more narrow wheels and proper sized tires (other than liking the way it looks better)?

dub40sx

I just had the biggest rant but deleted it all. I don't even want to think about this shit any more. Everyone that questions/against streched tires. Get the fuck out and go drive your god damn racecar off a cliff.

The Dude

I didn't realize a public forum wasn't the place to state opinions. I'll leave you all to talking about your popped collars, dubstep, skinny jeans, and stretched tires.

silviaguy240

Why be a stubborn asshole and come into a tire stretch thread and complain about it? There is theory behind stretching tires, yes obviously super extreme stretches dont help, but if its not what your into stay out.

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fckillerbee

because i dont stretch tires out of performance, its just for looks. But you came in here saying it was sooooo dangerous....and well...I work at tire company, dealing with high end performance and custom modified vehicles...and it's not dangerous, but just like a knife, in the wrong hands, an idiot can hurt them self.

Keep your tire pressure above 40 psi. In cold weather, tires drop air pressure, and thats where people see problems when they don't pay attention. My s14 was on the floor...literally...daily drove it that way for a year before selling her. If you are smart...just like anything, you'll be fine. Stupid, ignorant, simple minded people are the ones complaining about cracked rims, and their stretched tires de-beading, and how "un safe" it is.

but like anything...there are limits.

93_ProjectS13

205/40/17 on a 17x9.5 / Happened when I left work.as going around 50ish nothing bad happened just pulled over lol.

Te37

Ouch!...what tire brand, style?

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KiLLeR2001

Fake wheels... check.
Stupid tire stretch... check.
Lame signature quote... check.

Having your tire pop off driving down the road putting your life and the lives of others in danger... priceless, for everything else there's DerpaCard.

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93_ProjectS13

There Nitto NeoGens. When it happened it just felt like a tire with low air lmao. The car didnt jerk or make any aggresive noises of any kind.

I actually work in the aftermarket. And ive seen way more unsafe unroad worthy things then a streched tire. Once A tire beds its very hard for it to break bead. My tiring breaking bead is no different then a tire blowing at the same speed. Actually its probally safer.

But thanks for pointing out things like my wheels and my sig. Which made your post even more useless.

Beejis60

Do you actually race your car though? If not, then why run what people on the track do? Do you have a cage in your DD as well?

Stretched tires can cause separation of the sidewall to tread interface, most notably when the tire pressure drops. However, the stiffer sidewall comment is somewhat correct... obviously the less sidewall flex, the better the cornering, but I think all of you in here do not push the limits of your tires such that you have to worry about flex. Mostly nowadays, you guys do this for looks and e-nut riders.

Lukasss

I guarantee the people in this thread being whiney bitches have never had stretched tires on their vehicle in their life. If not, this thread does not apply to you, and you aren't convincing anyone that runs stretched tires to stop. So kindly shut up.

You sound like a kid complaining to his mom how much he hates broccoli, but hasn't ever tried it.