|
Converting lambda fuel head to non-lambda
After studying the Bosch k-jet with lambda technical manual I think I have this figured out. The only difference between the non-lambda and lambda is the fixed orifice that supplies the lower chambers with fuel pressure and of course the FV that dumps fuel from the lower chambers back to the tank thus causing a larger differential across the fuel slits and opening the differential pressure valves more to richen the AF ratio. So simply drilling out that fixed orifice will allow the lower chambers to operate at system pressure just like a non-lambda head. And of course the FV would be removed and the supply port plugged or simply disconnect the FV and leave the lines in place. Then tune it just like a non-lambda system with an adjustable WUR.
I intend to do this when I rebuild this engine.
|