Tower brace

[Bernie Benz]

Correction Pat, you picture a tower brace, not a strut brace.

> From: "Patrick Anderson" <patrick.anderson1 at comcast.net>
> 
> Andy,
> 
> I believe you will find that the dimension needed for the bar will vary
> slightly from car to car. These cars have been on the road for 15 years so
> each car probably has its own sag/flex that has worked it way into the body.
> Evidenced by the varying experiences people have on camber adjustability.
> The variation from car to car may be slight but enough that a mass produced
> bar would not work. I believe that is the reason the 2B  bar is designed
> with slotted mounting holes. Although I don't think that the slotted hole
> design is very good at all. The whole point of the bar is to prevent flex
> from tower to tower and I just don't think that clamping a bolt down on a
> slotted hole will have enough clamping to totally prevent the bar from
> moving slightly. I think the fixed hole idea is more sound. Drilling the
> holes in my "custom" bar, if you can really call it custom, was the toughest
> part of the project.
Another correction.  The purpose of a tower brace is to divide a tower
deflecting force on the outside tower between both towers.  To acomplish
this as an equal division, the brace assembly including fastnings to the
towers must be an order of magnitude stiffer than are the towers.  Yours is
questionable, inasmuch as the bar is several inches above the elevation and
several inches ahead of the applied force.  Column stiffness is seriously
degraded by the introduction of any bending force.
> Anyway, when this topic came up and I replied with the BTDT somebody said
> they'd believe it when they saw it. Well, I finally got off my lazy bum and
> got to a digital camera. You'll see that the clearance between on the brake
> reservoir is REALLY tight. Screwing on my pressure bleeder is more difficult
> now but possible. And the bar just kisses the underside of the hood which I
> am not worried about. Links below.
> 
> http://pictureposter.audiworld.com/31998/stress_bar.jpg
> http://pictureposter.audiworld.com/31998/stress_bar_cross_view.jpg
> http://pictureposter.audiworld.com/31998/stress_bar_drivers_mount.jpg
You should flush your brake fluid, looks like panther piss.
> http://pictureposter.audiworld.com/31998/stress_bar_pass_mount.jpg

Bernie 
> 
> ----- Original Message -----
> From: "Andyschlueter" <andyschlueter at 4techwork.com>
> To: <200q20v at audifans.com>
> Sent: Monday, December 12, 2005 6:09 PM
> Subject: strut brace
> 
> 
>> Does anyone have the dimensions on the strut brace for our cars? mounting
>> location, distance between,ect. If not, I think I will model it up in
>> solidworks and make one that fits without any modifcation.
>> 
>> Andy Schlueter
>> '91 200tq20v Avant
>> 
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