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Randy Ayers Nascar Modeling Forums
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LastoftheV8
Joined: 05 Feb 2018 Posts: 127
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Posted: Sat May 08, 2021 10:04 am Post subject: short track hubs vs cup car hubs why are they different? |
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trucks/xfinity/Cup cars have all the lug nuts very close to the axle cylinder in the center of the wheel just like a street vehicle
a lot of short track / saturday night cars (and models/die cast of them) have hubs where it looks like the lug nuts are way out on the outer part of the rim closer to where the tire mounts on the rim
Anybody have a theory or knows why they are different? is it a cost or rule of some sort? |
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Mark C.
Joined: 16 Feb 2018 Posts: 182
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Posted: Sat May 08, 2021 2:11 pm Post subject: |
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I can't say definitively, but weren't the "wide five" configurations based on heavy duty truck hubs, that could be bought reasonably by the local short tracker?
As for NASCAR, I'm not sure, but perhaps they were parts specifically designed for NASCAR and adapted by all the teams? The legalization of NASCAR parts would have been pretty specific, whereas the local short tracker would have much less stringent requirements to adhere to (and tighter budgets). |
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spooker
Joined: 11 Feb 2018 Posts: 437
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Posted: Sat May 08, 2021 4:27 pm Post subject: |
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The Wide-5 design originated on 1937-39 Ford trucks. Short-track racers in the '50s began using them as their wide rims and larger bolt circle improved overall strength and allowed for wider tire options. They also are a "full-floating" bearing design, so a broken axle doesn't mean a lost wheel. |
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Racer14
Joined: 13 Feb 2018 Posts: 282 Location: Rockford, IL
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Posted: Sun May 09, 2021 1:34 pm Post subject: |
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The wide five wheels are several pounds lighter than a conventional race wheels. You have to have specific hubs too but these are aluminum so there is a bit of a weight savings in the sprung weight. It does seem like the cost of wide five parts are more expensive than a conventional wheel/hub setup. |
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