While still using a 911 Porsche factory-style front sway barhttps://pbase.com/9146gt/image/166594648. it would be interesting to know the diameter used and tested in this race car.
914-6 Race Car Above-Trunk Rear Sway Bar, a More Modern Set-Up - Photo 1
914-6 Race Car Above-Trunk Rear Sway Bar, a More Modern Set-Up - Photo 2
914-6 Race Car Above-Trunk Rear Sway Bar, a More Modern Set-Up - Photo 3
914-6 Race Car Above-Trunk Rear Sway Bar, a More Modern Set-Up - Photo 4
914-6 Race Car Above-Trunk Rear Sway Bar, a More Modern Set-Up - Photo 5