Date:         Wed, 23 Mar 2005 11:08:37 -0800
Reply-To:     Marc Sayer <marcsayer@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Marc Sayer <marcsayer@COMCAST.NET>
Subject:      Re: audi wheels on vanagon,
In-Reply-To:  <85.240f3702.2f7311c0@aol.com>
Content-Type: text/plain; charset=us-ascii; format=flowed

JordanVw@AOL.COM wrote:

> like i said before..if youre mounting these on a 2wd then the centerbore hub
> holes must be machined to 2.5" dia, and spacers MAY need to be used up front
> depending on the offsets (audi wheels had different offsets, ranging from
> 35-45)


Bet the Audi Quattro rallye cars don't do this to their wheels. :-)

Anyone ever tested to destruction a set of Audi wheels before and after
these mods to see how this affects their strength? There is not a lot of
meat between the bolt holes and the centerbore to start with on some of
these wheels. I would be very leery of reducing the amount of material
there. I would also be leery of creating stress risers by simply
grinding/machining on the wheel. I would want to do something to address
that issue too, especially on a daily driver where the wheel is exposed
to constantly changing loads over a long period of time.

I have seen alloy wheels break from just this sort of modification on a
race car.

Also have to wonder how the spacer and longer studs/bolts change the
loading applied to the wheel, especially in light of the machining that
must be done to the centerbore.

Just some things to think about. A marginal part works great, until it
doesn't. Past success with modified parts does not necessarily predict
future performance or suitability. Especially if the modifications are
not standardized and uniform.

--
Marc Sayer
Journalist, Photographer, Dog Trainer (APDT member #062956)
Director of Operations & Training - Deaf Dane Rescue Inc.
Springfield, OR USA

My Homepage - http://gracieland.org

Deaf Dane Rescue Homepage - http://gracieland.org/DaneRescue/



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