Thought you folks might like to see a few photos of an install of a Ruf Kompressor system in a customer's 997 C4S 3.8.......
During the final road test before delivery to our customer, I read 6800 RPM on the laptop in front of me. This was in 6th Gear, so we were moving out with authority.
Did not have a chance to look over at the speedo, I was holding on and watching the road come up extremely fast.
What's the rolling diameter of a C4S 19" tire?
Multiplied by Pii x the Gear ratio x ???, etc...
Have a great Porsche day everyone.
Len at autosportengineering.com