Quote Originally Posted by Oggie Fisher View Post
..... Also, would cal be sensitive to placement of wideband O2 and thermocouple?
Yes to both.
Everytime a WB is beyond an exhaust joint and further from the the engine, error and delay can become an issue.
EGT can provide good feedback when properly placed at the convergence point at the turbine scroll entrance - not per port... not down stream (passed the turbo).
As I put it to a recent PM..
There are two engines here - one gas engine and one turbine engine.
It's the balance between the two that make an optimal system.