For example, A/F starts at about 13.7 at low boost/vacuum to about 11.5 at 30# boost. Any change to the weather conditions and the wide band O2 will add fuel and potentially save an engine.
Allan G.
I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.
Huh?
detonation shows up as a rich condition to the 02
My example is not with E85 but with race gas. Don't know the optimal A/F for E85.
Allan G.
1970 Challenger w/572 Hemi street car and my pride and joy.
1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno.
1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
