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Old 01-20-2016   #11
Billy Mild
 
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Default Re: shaking when Topless

I have noticed this as well. I have heard the Vette2Vette solution really helps the chassis flex quite a bit. I have still wanted to run either that or X Brace from GM.
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Old 01-20-2016   #12
Hib Halverson
 
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Default Re: shaking when Topless

The C4 convertible "braces" on a coupe don't do much in a practical sense to improve the C4 structure, however, the improvement might be noticeable as a slight decrease in steering column shake.

They do increase weight and decrease ground clearance but, heck, they are easy to install.

I've never tested the product, but the "Vette2Vette" chassis reinforcement, looks like a better choice than the OE convertible braces.
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Old 01-20-2016   #13
-=Jeff=-
 
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Default Re: shaking when Topless

Quote:
Originally Posted by Billy Mild View Post
I have noticed this as well. I have heard the Vette2Vette solution really helps the chassis flex quite a bit. I have still wanted to run either that or X Brace from GM.
Quote:
Originally Posted by Hib Halverson View Post
The C4 convertible "braces" on a coupe don't do much in a practical sense to improve the C4 structure, however, the improvement might be noticeable as a slight decrease in steering column shake.

They do increase weight and decrease ground clearance but, heck, they are easy to install.

I've never tested the product, but the "Vette2Vette" chassis reinforcement, looks like a better choice than the OE convertible braces.

From my personal experience the Vette2vette chassis brace works as advertised.

I have the prototypes on my car and very happy with them and I know they have made some improvements since they installed mine
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Old 01-20-2016   #14
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Default Re: shaking when Topless

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Originally Posted by -=Jeff=- View Post
From my personal experience the Vette2vette chassis brace works as advertised.

I have the prototypes on my car and very happy with them and I know they have made some improvements since they installed mine
I still need to install mine....they've been sititng in the garage for a year
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Old 01-21-2016   #15
BigJohn
 
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Default Re: shaking when Topless

My roll bars work quite well, but makes the rear view mirror useless.
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Old 01-21-2016   #16
Z51JEFF
 
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Default Re: shaking when Topless

Welcome to C4 ownership. The car with the top off is about as ridged as a wet piece of toast. My car tries to shake the turn signal stalk off with the top off but I still take it off at times. I have a set of Bill Bs beam plates just need to get them on the car.

Last edited by Z51JEFF; 01-21-2016 at 04:14 PM.
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Old 01-21-2016   #17
Fully Vetted
 
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Default Re: shaking when Topless

While it's completely normal it tends to be worse in some cars. I have the V2V No Flex Frame Stiffeners (basically a long subframe connector with heim joints on both ends) and I still notice some cowl shake but it did improve quit a bit. I also have beam plates. Again, it still shakes but not nearly as bad. I would definitely be interested in the cross bar if anyone knows where to get them.
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Old 01-21-2016   #18
Mystic ZR-1
 
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Default Re: shaking when Topless

Quote:
Originally Posted by BigJohn View Post
My roll bars work quite well, but makes the rear view mirror useless.
you've been upside down in the LM?
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Old 05-01-2017   #19
Livin' in the 80's
 
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Default Re: shaking when Topless

I took the top off for the first time yesterday and experienced this shake. I took me a little bit of time to get used to it. It certainly scared me at first. The steering wheel and dash shook on all minor and major bumps. Has anyone made a X designed metal brace that fits in place of the targa top? Would this work?
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Old 05-01-2017   #20
Z51JEFF
 
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Default Re: shaking when Topless

Quote:
Originally Posted by Livin' in the 80's View Post
I took the top off for the first time yesterday and experienced this shake. I took me a little bit of time to get used to it. It certainly scared me at first. The steering wheel and dash shook on all minor and major bumps. Has anyone made a X designed metal brace that fits in place of the targa top? Would this work?
Welcome to the wonderful world of C4 ownership. The things about as ridged as a wet piece of toast with the top off. The targa truss bar will tighten things up a bit but just can't get past the looks of the thing,I can deal with the shake.
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