patrick.anderson1 at comcast.net
patrick.anderson1 at comcast.net
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 charter.net>
> 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.
> > 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
> > ----- Original Message -----
> > From: "Andyschlueter"
> > 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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