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#11 |
![]() Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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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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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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#12 |
![]() Join Date: Jun 2005
Location: CenCoast California
Posts: 899
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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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Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878 |
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#13 | ||
![]() Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,154
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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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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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#14 |
![]() ![]() Join Date: Jun 2005
Location: pittsburgh
Posts: 4,633
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I still need to install mine....they've been sititng in the garage for a year
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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#15 |
![]() Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,137
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My roll bars work quite well, but makes the rear view mirror useless.
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#16 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,058
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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 03:14 PM. |
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#17 |
![]() Join Date: Sep 2012
Location: Rockwall, Tx
Posts: 1,510
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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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_________________ 1994 AB/Grey #141 430 RWHP/392 RWTQ FBI Lyposuction / Secondaries relieved of duty / SW Long Tube Headers / Corsa Exhaust / FIC SS Injectors / MSD Coils / Lightweight Pulleys / Corey tuned B & M Shifter / Aluminum Flywheel / Samco Hoses / Shelby Series One's / C4 No Flex Frame Stiffener BBC - Bling By Carter: Custom ZR-1 Center Caps / Custom Plenum Plate / Air Box Knobs / TB Cover / Oil Filter Cover |
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#18 |
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Location: Mystic CT
Posts: 2,623
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#19 |
Join Date: Feb 2017
Location: Southbury CT
Posts: 101
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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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#20 | |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,058
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