Brief Description: Fuel line re-routing and testing.
Dynon is still showing fuel pressure lowish - OK but at the bootm end of the scale - but more importantly, the pressure reading drops at Wide Open Throttle (WOT). The fuel pressure should not change with revs. The trouble shooting guide says to place tge fuel flow meter after both pumps (electrical and mechanical pumps) to avoid any chance of vapour locking and drop in pressure. So I removed all the fuel lines, relocated the fuel flow meter and reconnected the fuel lines so the fuel flow meter is in the last fuel line - going to the carbi. Fire sleeved all the lines, cable tied them in place and wired everything back up again and saw a marginal improvement (I think ...). But I still get a pressure drop when the throttle is opened.
The flow is fine - supposed to be 44 to 55ltrs/hr and I'm getting 54 ltrs/hour to the carbi. Further thinking and testing required to explain or fix the pressure drop.
