[s-cars] How Much Caliper Clearance?

[Matt twentyV]

Yep with the stock 16" avus rims and 993 calipers there is barely a paper thickness clearance.  After running this way for 1 winter, there were numerous circumferential scratches on the on the inside diameter of the rim, and matching scratches on the outer surface of the caliper.  Obviously the sand and grit which tends to collect on the inside of the rim was getting brushed by the caliper.  

Needless to say I switched to 17"s the following winter and moved the tires to different wheels for a different car.  Um, I still have the avus rims... any offers?  ;-)

-Matt

calvinlc at earthlink.net wrote: Steve,

My tightest clearance isn't in the direction that spacers would help.  It is
in the radial direction, if you will.  As the wheel goes around the inner
circle formed by the wheel is only about 0.1 inches from the corner of the
caliper.

--Calvin


-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Steve Powers
Sent: Wednesday, November 21, 2007 3:56 PM
To: Taka Mizutani
Cc: Audi S Car List
Subject: Re: [s-cars] How Much Caliper Clearance?


ditto to what Taka said. you want some clearance in there or else...

I went with H&R spacers - 8 mm I think. easy solution.

Steve Powers

On Nov 21, 2007 5:35 AM, Taka Mizutani  wrote:
> I don't think it will necessarily cause a problem, but I have seen what
> happens when a rock or other debris gets stuck in the wheel with that
little
> clearance- the caliper gets gouged and the wheel and caliper get really
> ugly.
>
> My Volvo has huge brakes, but the clearances are more like 5-10mm in every
> direction. I have not seen OEM brakes with less than that in terms of
> clearance, but I am not an expert, this is merely conjecture. I can't say
> whether or not it's safe/unsafe, etc.
>
> You could always get 18" snows. :-)
>
> Taka
>
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