Date: Mon, 3 Feb 1997 18:32:25 +0000
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From: vwbus@netbiz.net
Subject: RE: Alloy wheel deal
> Actually, a little more than 10mm is sufficient too, because it does work.
>
> Audi 5000/200 turbo alloy wheel: 6Jx15 H2 ET45
>
> Vanagon "Carat" 5 spoke alloy wheel: 6Jx14 H2 ET30
>
WHOA, Frankly I would begin to think about this conversion at this
point, work or no work, a change in offset of 1.5 cm is going to
be loading a bearing more than designed, putting say about 50-100 ft-lbs
additional moment on the spindle (assuming a 1000 lb load). Just
cause it fit's don't make it right, take a look at some of the
slammed civics with 8 inch wheels, bet they get 30k out of a set of
front wheel bearings. A data point, FWD performance VW's typically
in the early years ran stuff ET35 or greater, BMW 3 series (RWD) wheels
had same bolt pattern but 25mm offset, running them was a STRICT NO
NO. Adding spacers is often a good indication you got a problem, if it
rubs without em, if you move it it ain't a good idea. Plus the spacer
Ron mentions is going to exasperate the bearing problem, as the 45mm
offset has already shoved the wheel 1.5mm OUTBOARD of where it should
be, now adding a space shoves it out FURTHER. Knowing this
info the Audi wheel is clearly for FWD applications, the van needs a
RWD wheel. Fortunately a quick call to Tire Rack shows two readily
available. The Borbet Replica II (Mercedes Replica) and Borbet Type
A are both 15 X 7 with 25 mm offset. A proper fitment, offset only
changes 5mm (less than .25 inch) and hence wheel grows nearly evenly
inside and outside, and quite economical $120 each with new bolts and
nuts, tested ready to bolt right on. Go get em if you want to run
them 15 inch tires, the Type A would look excellent on a Vanagon.
Check it out at http://www.tirerack.com it's a massive 5 spoke thing,
bolts right up, without machining or spacers. Of course being 1.5
inches WIDER than an OEM steel wheel watch for tire rubbing. Another
thing I've learned, ALWAYS buy at least 5 alloys when you buy
aftermarket wheels, if 4 years from now you bust one on a curb/rock
and the company no longer makes the style, you get left with 3
worthless chunks of aluminum.
Not to sound like I'm dishing you Ron, but this really sounds a BAD
idea engineering wise, do you know anybody that has put say 100,000
miles on a van so converted, if not I'd think twice.
John
vwbus@netbiz.net
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