Ever heard of one? Thats because no one makes one.

But I am about too.

I have a crapload of suspension mods: prokit springs, kyb struts/shocks, 36mmhollow and 32mmrear sway bars, MAC sfc's, boxed in stock LCA's, adj Lakewood panhard rod, extra reinforcement in the front subframe area (bars welded at right angles to the ASC sfc's and welded to the front subframe points), homemade 2-point STB, wonderbar, and poly bushings all the way around.


AND I STILL get chassis flex. Especially in the door/window/b-pillar area.

I conceptualize the cabin area of the convertible as a 5-sided box (open on top of course). Kind of like inner box of a matchbox. Or like an upside down stock LCA. I think that attaching a brace side to side from the top of each b-pillar would reduce ALOT of shakes and rattles and flex. Glue a toothpick to the top of that matchbox and see how much flex is reduce when you try to twist both ends opposite.

They make them for C4 and C5 verts (same concept). Here are a few pics:

http://www.r-dracing.com/cbv1.JPG

http://www.r-dracing.com/c5r8.jpg


Best would be to add to the bar and design something similar to this:

http://www.r-dracing.com/C4STFS_023.jpg



Anyone ever thought of doing this??

 

I know this is an old thread, but has anybody looked into making this for a convertible. I know my car still flexes with a whole bunch of mods already.

 

someone once did but cant remember where. sorry

 

I mainly did it for the 4 point harness mounts, but works the same.



Kevin D.

 

Holy crap! Did I post that in '04? Time flies. A lot has happened in 7 yrs!

I eventually did make make the brace, similar to the one in the pic from shr00m.

Had to modify the trim pieces for it to fit. But, it fits great. Can't be for sure if it made much of a difference. Seems like it did. Car is non-drivable right now as the bumper, spoiler, hood and fender have been pulled.

To my knowledge, no one makes a piece like this professionally. Easy to mock up yourself though if you want to do it.

 

hey do you have a picture of your setup?

 

Now in my mind I visualized this. For what your looking for, just bolting this from one sied to the other is not going to stop much flex.
You have to consider that the body flexes in different ways and it also twists. Twisting is corner to corner, and the flex is horizontal (in the center, up and down, or front to back) and vertical (Side to side or left to right).
A bar placed where your thinking adn as shown in the picture won't reduce those much. Now if you did an "X" pattern and vertical to the floor pan with the horizontal across the top, you would significantly reduce flex and twisting.

 

hello
except for motor n trans.....what all else is 4th gen...???
how hard was the install...?
i have a 92 trans-am roller....{gonna stay withe sb 350 tpi /700r4 combo....well when i find one...lol}
intireor 4th gen looks nice but how much pain in *** was it.....
i would do seats ...center and rear axle
got fix rust first thou.....
hey sweet ride

 

I haven't had time to study my Vert, but I am thinking about a bar on each side just outboard of the seats. connect to the front sub-frame through the fire wall, say 2 or 3 inches off of the floor, back the the rear sub-frame about 5 or 6 inches above the back seat bottom cushion???? plus a self designed dual 1 5/8 chrome-molly SFC's on each side, with both on there respective side tied together. I want a 3 inch chrome-molly SFC that will pass through the sub-frames at a 70 degree or so angle, welded on both sides of the sub-frames. this would look like a large open face C. thoughts???