My existing tank doesn't have gas tank air vent lines to the motor. It has a vented gas cap. I want to avoid the smell of gas, avoid the pressure that is building up in the tank and to let the fumes be used in a more environmentally sound way. I want to add a charcoal canister and other needed items for that kind of system. Is that an EVAP or what is the term for that?
Holley in-tank fuel pump with 60psi to a Holley sniper EFI was added. I have a return fuel line from the sniper. Earl's vapor guard lines were used. Because of EFI, no carb bowl venting needed.
I don't want to use an old charcoal part because I want it to work and if rebuilding the one on my 1974 TR6 was any lesson, it is that they don't last forever and some can't be rebuilt.
I would appreciate if anyone has info on what I need. I have two plugged openings on the gas tank plus a plugged vent line on the Holley in-tank pump so I have enough places to start at the tank. I'll need a line going up to the engine bay and into some carbon canister. The canister should have a built on valve that can be actuated by vacuum from the motor once past idle which would open the canister which would then suck fumes into the sniper? With only one line like that, where does the gas tank get new air to prevent pressure in the tank?
Thanks for any help,