Yes, these already exist. About 1" thick in aluminum, allowing you
to change offset and bolt pattern. Google, or ebay, "4x100 adapter"
for a start.
They exist in lots of different versions -- to put 4x100 wheels on
cars with other bolt patterns, to put different wheels on cars with a
4x100 bolt pattern, to go from 4-lug to 5-lug.
There are slightly thinner and thicker versions as well, and of
course spacers in 4x100 are common/cheap.
Good luck!
Matt
On 7 Mar, 2009, at 4:33 PM, Larry Colen wrote:
> After a long hiatus, I'm starting to work towards putting my
> supercharged BGT back on the road. As much as I love to build motors,
> I'm going to give in to the inevitable that I'm not going to have time
> to assemble the motor in the forseeable future and am commisioning a
> friend to do it.
>
> I was pricing tires for my daily driver beater miata, the one that was
> supposed to get me by for a few months until I got the MG back on the
> road, five years ago. Fifteen inch tires are a lot cheaper than
> fourteen.
>
> Once Jasmine is running again, I may well want to use these tires on
> her, but I don't have 15" MG wheels. I do however, have pleny of 15"
> Miata wheels.
>
> It seems to me, that the offset is different enough, and in the right
> direction, between Miata, Honda etc. and MGB, that I could make a
> spacer, that is an inch or so thick. It would have two sets of four
> holes, 45 degrees apart. One set would be drilled and tapered to bolt
> to the hub, with a 4" lug diameter.
>
> The other set would be drilled for wheel lugs on a 100mm lug diameter.
>
> It might be a bit heavy, but close to the hub, so that should reduce
> the polar moment, and for track use, I could get a set of lightweight
> panasports on the MGB bolt pattern.
>
> Has anyone tried this? Is it already commercially available? Or is
> there not enough difference in offsets to have room for the lugs and
> nuts?
>
> Not only would this allow me to use wheels that I already have, but I
> think that the greater offset on the wheel might improve airflow
> around the brakes.
>
> --
> Every medium suffers from its own particular handicap. Photography's
> greatest handicap is the ease with which the medium as such can be
> learned. As a result, too many budding neophytes learn to speak the
> language too long before they have anything to say." W. Connell 1949
>
> Larry Colen lrc@red4est.com http://
> www.red4est.com/lrc
>
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