Gentlemen, the CAV has two fully individual tanks and connectors are on the top. Usually (GTD, Ultima etc.) i just combine the two tanks on the bottom, suck from one and return into the same one. This works fine on all of my cars with EFI.
A switch is no option.
idea #1 was to use a fuel level sensor with a switch, that cuts of (via a relay) the corresponding pump. Con: in case one return line has better flow than the other one, the other tank will be flooded and fuel will leak at the expansion valve.
idea #2 was to run the two injector rails fully indiviually, two main pumps (which might make sense anyway, it's a 427), two catch tanks and two fuel pressure regulators. Con: lots of fuel lines and regulators ...
idea #3 is similar to #1: Using a fuel level sensor with a switch, running only on that tank until the switch in the sensor is activated and then switch to the other tank (using a solenoid). Con: lots parts and lines in the engine bay
Any other ideas?
Thanks
Andy
A switch is no option.
idea #1 was to use a fuel level sensor with a switch, that cuts of (via a relay) the corresponding pump. Con: in case one return line has better flow than the other one, the other tank will be flooded and fuel will leak at the expansion valve.
idea #2 was to run the two injector rails fully indiviually, two main pumps (which might make sense anyway, it's a 427), two catch tanks and two fuel pressure regulators. Con: lots of fuel lines and regulators ...
idea #3 is similar to #1: Using a fuel level sensor with a switch, running only on that tank until the switch in the sensor is activated and then switch to the other tank (using a solenoid). Con: lots parts and lines in the engine bay
Any other ideas?
Thanks
Andy