GT40s.com - View Single Post - Half shafts with U-Joints vs. CV Joints

John · 01-25-08, 08:22 PM

Randy,

My KVA has CV joints on the transaxle side of the drive shafts and U-joints on the suspension side. It uses Corvette rear suspension . I've been trying for a number of months to eliminate a drive train vibration that occurs when I'm accelerating in 2nd gear from about 2K to 4K RPM. Someone else suggested that this combination might be the cause but I was not immediately convinced because the KVA's were designed by legendary GT40 engineer Kevin Atwell - I assumed he would have been aware of such a harmonic vibration.

In you judgment, would a design such as my KVA's introduce vibration or would the combination CV/U-joint combination cancel out any harmonic vibration?

John

01-25-08, 08:22 PM	#3 (permalink)
John john_douglass Bronze Supporter Join Date: Sep 2005 Location: Rockville, Md. GT40: KVA Posts: 139 Rep Power: 5	Re: Half shafts with U-Joints vs. CV Joints Randy, My KVA has CV joints on the transaxle side of the drive shafts and U-joints on the suspension side. It uses Corvette rear suspension . I've been trying for a number of months to eliminate a drive train vibration that occurs when I'm accelerating in 2nd gear from about 2K to 4K RPM. Someone else suggested that this combination might be the cause but I was not immediately convinced because the KVA's were designed by legendary GT40 engineer Kevin Atwell - I assumed he would have been aware of such a harmonic vibration. In you judgment, would a design such as my KVA's introduce vibration or would the combination CV/U-joint combination cancel out any harmonic vibration? John