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I was looking through the old archives and I came across this link. http://www.idavette.net/hib/c4/sustunch.pdf Now I was wondering what is the R9G option in 1990. It seems to be the same as the 89 corvette challenge suspension setup. Anybody know what it is?
Re: question for the suspension guru's (Chief Muktar)
Found this on the ZR-1 Website:
For a limited time during 1990, dealers could order Corvettes destined for the new World Challenge race series. Merchandising code R9G triggered deviations from normal build, such as heavy-duty springs with FX 3. Owners could buy race engines from Chevrolet or build their own, and all race modifications were the owner's responsibility. Twenty-three 1990 R9G Corvettes were built.