Rich on cruise
Turbo Mini Forums

Been out today and done 150miles, mainly A roads and dual carriage ways. At 55-75mph on cruise the AFR is showing between 10:1 & 11:1, on very light throttle it just staying at 10. My lean off pipes connected and not block. Other wise the needle seams fine everywhere else. I've profiled the needle from a BDD, and currently get 11.4AFR @ 8psi, 11.8AFR @ 12psi & 12.2AFR@ 14psi. Cruise under 50mph is ok at 14AFR. Throttle response is really good everywhere. Idle is 13AFR. I've not done any work on the cruise area of the needle. Using 20/50 for damper oil and yellow carb spring. Any ideas?

Class C 3rd Place Avon 2011 14.18 @101mph

Mine is the same on cruise. But my part throttle pipe is blocked off.

Maybe there's a bit of rubber from the hose or something in there blocking it?

In the 13's at last!.. Just