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cmc 356 tires
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rickylee
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PostPosted: Mon Apr 30, 2018 10:28 am    Post subject: cmc 356 tires Reply with quote

I have a cmc 356 speedster replica with 4 lug 4-1/2 rims and 195/65/15 tires. I bought a set of empi 5-1/2 inch rims with 195/65/15 tires. i could not get the back tires to even go under the fenders. anyway I would like to lower the car a few inches and put on a wider tire. Someone suggested smart car tire or fiat sizes 180/65/15 I'm sure I'm going to have to stay with the 4-1/2 rims[
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Sharp64 Premium Member
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PostPosted: Mon Apr 30, 2018 3:18 pm    Post subject: Re: cmc 356 tires Reply with quote

This is where you need to know the backspacing on your wheels. More than likely the Empi wheels have stock backspacing and they simply added width causing your issues. You need a wheel that has a deeper backspacing.
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Wolfgangdieter
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PostPosted: Mon Apr 30, 2018 5:16 pm    Post subject: Re: cmc 356 tires Reply with quote

You probably have a circa 1971 chassis with the IRS long axle. Early VW chassis with swing axle have more room. My CMC has 185/65x15 on Porsche 914 2L Fuchs alloy wheels. These are ET40 offset which is about a 4.8" offset. On the driver's side I have a pinky worth of space even after sanding the lip and some of the inner wheel well thickness away. Post your wheels ET or offset.
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SBD
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PostPosted: Mon May 07, 2018 7:32 am    Post subject: Re: cmc 356 tires Reply with quote

Wolfgangdieter wrote:
You probably have a circa 1971 chassis with the IRS long axle. Early VW chassis with swing axle have more room. My CMC has 185/65x15 on Porsche 914 2L Fuchs alloy wheels. These are ET40 offset which is about a 4.8" offset. On the driver's side I have a pinky worth of space even after sanding the lip and some of the inner wheel well thickness away. Post your wheels ET or offset.
Just for clarity, it may be a 4.8" back space, but not offset. Cool
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