[DeTomaso] Stress-relieving Rims

Fri Aug 16 15:53:43 EDT 2013

Heat them up slowly and wrap them in blankets to cool back slowly, it will probably turn the paint darker at min. Bill 1362

-----Original Message-----
>From: "michael at michaelshortt.com" <michaelsavga at gmail.com>
>Sent: Aug 16, 2013 3:25 PM
>To: Stephen Nelson <steve at snclocks.com>
>Cc: "detomaso at poca.com" <detomaso at poca.com>
>Subject: Re: [DeTomaso] Stress-relieving Rims
>
>I know about stress relieving spoked wheels for bikes and M/C, have never
>heated a car rim/wheel to do that, do you have some
>written documentation that this works on magnesium?
>
>I'd love to read it.
>
>Thanks
>
>Michael Shortt
>
>
>On Fri, Aug 16, 2013 at 3:20 PM, Stephen Nelson <steve at snclocks.com> wrote:
>
>> Will stress-relieving original Campy rims at 375 F damage the original
>> paint?
>>
>>
>>
>> Stephen Nelson
>>
>>
>>
>> SNClocks.com <http://www.snclocks.com/>
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>> From: MikeLDrew at aol.com [mailto:MikeLDrew at aol.com]
>> Sent: Wednesday, July 03, 2013 3:36 PM
>> To: steve at snclocks.com
>> Cc: detomaso at poca.com
>> Subject: Re: [DeTomaso] Rim Offsets
>>
>>
>>
>>
>> In a message dated 7/3/13 9 29 36, steve at snclocks.com writes:
>>
>>
>>
>>
>>
>>
>> Mike - thanks for the extensive comments.  I do plan to drive 5332 for a
>> while, get used to it and see how it all hangs together.
>>
>> Right - scrub radius.  As I understand it, increasing scrub radius makes it
>> easier to park the car but more sensitive to external forces acting on the
>> tires when rolling down the highway - like uneven brake application.  Oh,
>> and "excessive" scrub requires more steering effort when going down the
>> road
>> and increases the "feel" of the steering.
>>
>> In my feeble brain, if the inside of the rim is at the same place with both
>> 7 and 8 inch wide rims,
>>
>>
>> >>>...which it's not...
>>
>>
>>
>>
>> > well, going to an 8 inch rim increases scrub radius by a quarter inch.
>>  Of
>> course, I don't know that inside edge of 7 and 8 inch rims are at the same
>> point.  But, since you indicate that the 8 inch rims improve handling, I
>> assume this means that the offset is increased a bit.  You indicate that
>> increasing scrub radius improves handling - does that include reducing
>> tramlining?  Or am I really just asking too nit-picky of questions?
>>
>>
>> >>>You're absolutely asking too nit-picky of questions...but that's why we
>> are all here.  We love this stuff! :>)
>>
>> The outside of the wheels is in the same place.  The 8-inch wide wheels are
>> one inch wider on the inside.  If the tire size is the same (that is, you
>> take a tire off the 7-inch wheel and put it on the 8-inch wheel), the
>> center
>> of the tire is moved inboard by 1/2 inch.  That makes a fair difference.
>>
>>
>>
>>
>> > From your e-mail I conclude that a set of four 8 inch wide original rims
>> is the way you would recommend for my situation - if the Coddingtons leave
>> me feeling like I would want to make a change?
>>
>>
>> >>>Yes, although it will be difficult to buy a set of four, 8-inch wheels.
>> You might wind up buying two sets of 7s and 8s to get there, and then
>> selling the 7s to some Mustang guy.  Alternately, the easy solution would
>> be
>> to just buy one set and put them on the car.
>>
>>
>>
>>
>> > Which Coddingtons.  The gentleman who put them on told me that they were
>> special, an early set with a flat center section instead of the dished
>> shape
>> of the later ones.  This apparently requires unusual lug nuts which are
>> counter sunk.  I am speaking from my notes here, and will have to see what
>> I
>> can figure out when Passport drops it off this afternoon.
>>
>> See what you think.
>> <
>> http://www.provamo.com/Members/Registry/RegistryImages/RTHPNNU05332/RTHPNNU
>> 05332.asp>  5332
>>
>>
>> >>>That is a VERY nice-looking car!  I assumed you were speaking about
>> Coddington's Campagnolo clones, as opposed to these, rather more generic
>> (but very striking) wheels.
>>
>>
>>
>>
>> >Looking at the pictures one more time, I will have to see how it drives
>> and
>> rides.  You are right - gads, good looking rims.
>>
>>
>> >>>Yes, these look quite good indeed.  My earlier comment was that their
>> current-production Campagnolo wheels are revolting to look at...but these
>> are a completely different story.
>>
>> I think when you drive the car, you will quickly get used to it and enjoy
>> it.  There's a lot to be said for having a lot of traction and feeling
>> planted in the corners, rather than skating around as you would on
>> old-school, low-tech tires.
>>
>> Mike (who skates around on old-school, low-tech tires....)
>>
>>
>>
>>
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>
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>
>Michael L. Shortt
>Savannah, Georgia
>www.michaelshortt.com
>michael at michaelshortt.com
>912-232-9390
>
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