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Old 09-02-2004, 03:14 AM   #1
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Default Rear strut tower brace?

Does this exist? Would it really make a difference? A piece of angle iron with two holes in it would do the trick theoretically...
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Old 09-02-2004, 04:24 AM   #2
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this is actually something I'm going to start making over the winter... both for myself and to sell, for my own car I'm doing 6 point mounting... not because it needs it... but more like a showcase of my work to make them for other ppl

anyways... strut to strut is basic... 2 point... obviously the more points the more rigid... and you can go strut to strut, strut to floor X 2 (4 point), and strut to tail of trunk x 2 (6 point)

will it make a difference ... it should... will you actively notice it... maybe in harsh cornering.. the floor pan of the trunk keep the rear stiffer then the nose.

I would prolly notice it more then you would as I'm going with full custom eurethane bushings throughout the whole car, upgraded springs, upped rear sway bar so I'll be putting more stress on the body in cornering

they are pretty easy to make ... I've seen a backyard track only car with just a round steel pole cut to length, squished at the ends and heavy metal screwed to the strut towers.. worked pretty good, but could be better.
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Old 09-02-2004, 12:59 PM   #3
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So, it keeps the back end more stable and wont come to loose around corners?
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Old 09-02-2004, 01:19 PM   #4
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92-99 are going to have a REALLY tough time doing this. I've put alot of thought into it myself.

Open your trunks and look at that area. You'll see what I mean.
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Old 09-02-2004, 02:56 PM   #5
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The unibody in the trunk and all is already stout. The main cross member goes accross just above where you'd put a rear STB. I think you'll have more luck under the car, atleast in the 92-99 gen.
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Old 09-02-2004, 04:10 PM   #6
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strut tower bars keep(or atleast help) that particular section of the unibody from flexing... which will help corner stability and corner traction. this will also help to some extent on Drag launchs... a cross bar behind the front seats will help in launch and corner

basically what these bars do is stop the strut towers from flexing towards and away from each other... and if you have a SOLID bar (none of that swivel mount crap) they help stop the bars from flexing up and down from each other... tying into the floor helps this even more, ,and tying into the front or rear of the trunk helps in and out flex.

the stiffer and more agressive your suspension .. the more this flex is evident

personally I would worry about bracing/suspension in this order - front strut bar, rear sway bar, struts and springs, sub frame connectors, full urethane bushings, adjustable sway bar end links, mid interior brace, lower suspension braces front and rear, then Rear strut tower bar.

a side effect of this order is by the time you should be installing your rear strut bar ...you've already decided and installed your stereo/subs ... so you know where to have your strut bar made to fit
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Old 09-02-2004, 06:29 PM   #7
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Guys, I've taken a 94 apart, You don't need a rear STB. There'* 1/8" steel already there.
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