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stretching tires??

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Old 02-07-2007, 08:33 PM
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bbs350z
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Default stretching tires??

so i went to the tire shop 2day 2 pick up a set of much needed rims (yes im a bit retarded w/ tire sizings) and i had a set of coopers put on my stock touring rims (18x8 225/45/18 and 245/45/18) and he said the tires will fit anything from a 18x8-18x9.5. can tires straetch like that and fit over the new aftermarket wheels (they are 18x8.5 fr. 18x9.5 rear)
Old 02-07-2007, 08:49 PM
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Shift_Z33
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tires can usually stretch pretty far. Like the guy told you 1.5-2 inches
Old 02-07-2007, 09:09 PM
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azula
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they can stretch but u are comprimising the integrity of the tire....just be careful how far you stretch it.
Old 02-08-2007, 04:24 AM
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Fluid1
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IMHO, stretching tires is not smart. That being said, I have 255/40's on my 17x7.5" rims.
Old 02-08-2007, 04:43 AM
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The variety of tire widths that will fit on a wheel is amazing. Safe tire width is a different story. The range is more narrow. The question is Will the tire stay on the wheel if you hit a pot hole?

Aside from that, many members do not care. After all, a stretched tire looks cool. So do as you please.

Last edited by davidv; 02-08-2007 at 06:24 AM.
Old 02-08-2007, 05:31 AM
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dkmura
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I'd say DON'T do as you please, particularly when it comes to stretching tires. Putting too wide a tire (like a 275/40-18 on a 18 X 8.0" rim) not only stretches the sidewall, but distorts the contact patch of the tire itself. Two very bad things occur:

1) The tire has LESS traction than a smaller tire of the appropriate size.

2) A much higher possibility of bead failure (ie. your tire goes flat) since side loading of the tire exceed design specs.

So your Z stops, corners and accelerates WORSE and you pay MORE (for the larger size). I think a lot of members would care if they realized this!

David Muramoto
Senior Editor
Nissan Sport Magazine
Old 02-08-2007, 06:03 AM
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350Zenophile
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Stick within the manufacturer's guidelines, they are posted on their individual sites or you can find them at tirerack.com.
Old 02-08-2007, 06:30 AM
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davidv
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Originally Posted by dkmura
I'd say DON'T do as you please, particularly when it comes to stretching tires. Putting too wide a tire (like a 275/40-18 on a 18 X 8.0" rim) not only stretches the sidewall, but distorts the contact patch of the tire itself. Two very bad things occur:

1) The tire has LESS traction than a smaller tire of the appropriate size.

2) A much higher possibility of bead failure (ie. your tire goes flat) since side loading of the tire exceed design specs.

So your Z stops, corners and accelerates WORSE and you pay MORE (for the larger size). I think a lot of members would care if they realized this!

David Muramoto
Senior Editor
Nissan Sport Magazine
This forum went from performance to looks and sounds a long time ago. Consider the number of What are the biggest tires? and What exhaust sounds the best? posts. Performance and handling have been relegated to niche forums such as racing.
Old 02-08-2007, 06:33 AM
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Originally Posted by dkmura
I'd say DON'T do as you please, particularly when it comes to stretching tires. Putting too wide a tire (like a 275/40-18 on a 18 X 8.0" rim) not only stretches the sidewall, but distorts the contact patch of the tire itself. Two very bad things occur:

1) The tire has LESS traction than a smaller tire of the appropriate size.

2) A much higher possibility of bead failure (ie. your tire goes flat) since side loading of the tire exceed design specs.

So your Z stops, corners and accelerates WORSE and you pay MORE (for the larger size). I think a lot of members would care if they realized this!

David Muramoto
Senior Editor
Nissan Sport Magazine
Not to mention the added weight of a larger tire.
Old 02-08-2007, 06:34 AM
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Fluid1
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Originally Posted by davidv
This forum went from performance to looks and sounds a long time ago. Consider the number of What are the biggest tires? and What exhaust sounds the best? posts. Performance and handling have been relegated to niche forums such as racing.
You know it's sad but true. [/metallica]
Old 02-08-2007, 09:12 AM
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bbs350z
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wut im trying 2 say is im goin w/ half inch wider up front, and 1.5 inches wider in rear. strecthing these tires will affect the way the car drives/handles/etc.
Old 02-08-2007, 10:12 AM
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Originally Posted by Fluid1
Not to mention the added weight of a larger tire.
don't most people stretch tires to use smaller tires?
Old 02-08-2007, 02:45 PM
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Originally Posted by ekim81
don't most people stretch tires to use smaller tires?
No. Its strictly for looks.
Old 02-08-2007, 02:55 PM
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stretch those tires biatch!

Old 02-08-2007, 05:02 PM
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Camber
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Originally Posted by deviljon
stretch those tires biatch!

holy hotness! more pictures of this setup please!

I come from the VW world, so stretching tires is the norm for me

edit: i saw you website, that setup is so fire

Last edited by Camber; 02-08-2007 at 05:11 PM.
Old 02-08-2007, 06:38 PM
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website? what website?
Old 02-08-2007, 09:56 PM
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Silly Rabbit, stretch is for kids

Chris
Old 02-08-2007, 11:55 PM
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Holy sh*t!!! HAHAHAHA I can't believe that tire even beaded!!!
Old 02-09-2007, 12:33 AM
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good god, how did you pop that bead on there? 140psi? ky instead of tire lube? midgets?

no but really, what's the ideal width for a 18x9.5in rim? I was looking at something in the 265-275 range maybe 35 or 40 sidewall.
Old 02-09-2007, 03:01 AM
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Originally Posted by davidv
No. Its strictly for looks.
yeah i was pointing out that they use smaller tires when they stretch.... since people kept talking about how stretching would add weight cuz of bigger tires.... sorry, guess i didn't express that clearly


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