Tower brace

patrick.anderson1 at patrick.anderson1 at
Tue Dec 13 15:37:40 EST 2005

One might call it a strut tower brace. We all know what we were looking at in the pics. 

I'm not sure I agree with your comment about my bar being serveral inches above the elevation and ahead of the applied force. True, my bar with the spacer block may not be 100% as good as the UrS4 setup. But, aside from those spacer blocks this is just like the factory UrS4 setup. I suspect that the Audi engineers knew a little something about what they were designing. Do you think they were wrong and designed an ineffective brace? 

My brake fluid may look bad but I can assure you it has been bled far more frequently than needed. In fact, most recently a month ago after a track event. It is just the color of the plastic reservoir or bad pic. I thought I'd catch more flack for the ceramic coating in the engine bay as having a fat wallet than poor looking fluids. 


-------------- Original message -------------- 
From: Bernie Benz <b.benz at> 

> Correction Pat, you picture a tower brace, not a strut brace. 
> > From: "Patrick Anderson" 
> > 
> > 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. 
> > 
> > 
> > 
> > 
> You should flush your brake fluid, looks like panther piss. 
> > 
> Bernie 
> > 
> > ----- Original Message ----- 
> > From: "Andyschlueter" 
> > To: <200q20v at> 
> > 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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