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 Post subject: Re: Tire stretching ?
PostPosted: December 13, 2018, 4:38 am 
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If you have a scrub problem that can't be resolved with the wheels you want to run, consider using a larger od with a 245-40-17. The tires are a common size so the price is about half that of the 15.

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 Post subject: Re: Tire stretching ?
PostPosted: December 13, 2018, 10:42 am 
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You are right about the taller tire.

But I gave up on a 0 scrub with the 10" rim. Still trying to replicate what Porsche did . And with the short tire I can do that.
If I was not doing a replica I would go another way.

May not be the best way but I will work to get what I can. If I had the big bucks I could go with the 13" tires from the EU, but their not D.O.T. and $$$$

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 Post subject: Re: Tire stretching ?
PostPosted: December 14, 2018, 9:37 am 
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Location: Kamloops, BC, Canada
Doesn't Toyo still make R888's in a bunch of 13" sizes? I had some that were 225/45/13 on my locost.
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 Post subject: Re: Tire stretching ?
PostPosted: December 15, 2018, 2:32 pm 
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Location: central Arkansas
Getting tires to seat onto wheels much wider than the tire can be quite a trick. Not something for a run-of-the-mill tire shop. If there's a place that does "bling wheels" for low riders or old-school "rice rockets", they're the people you need to talk to.

A well-equipped tire shop will have an inflatable band that goes around the tread to lever the sidewalls out. It won't do much with a stiff-carcass tire. It takes some stout ratchet straps, and often an "air hog" to blow the sidewalls out far enough to seat.

Street tires tend to be much stiffer and harder to seat than racing tires, though DOT racing tires like the old R1s were a real hassle.


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 Post subject: Re: Tire stretching ?
PostPosted: November 12, 2020, 3:54 pm 
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B85 wrote:
Doing the ground work for a replica of a 908-3 Porsche.

My favorite race car of all time. Did it get finished?

I knew a guy who ran 225/45-13s on 13 X 10s and had no problems.
15 X 9 would be the right size for your tires so a stretch to 10" should be easy.


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 Post subject: Re: Tire stretching ?
PostPosted: November 25, 2020, 6:09 pm 
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Location: Sydney, Australia
Zac88GT wrote:
245/40/15 on a 10” will work perfect. It's pretty much been proven in the turbo Miata world that it's fastest to run a wheel the same width as the tire section, ie. 225 on a 9" or 245 on a 10". I'm running 205 on an 8" and 225 on a 9".

This is what my research found as well.

I ran 13x8 rims with 205/60/13 tyres on my NA Miata (and somehow the 13's I had cleared the NB brakes I swapped on :lol:)

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