fuel Tank

[onedayTM]

hi guys, looking for info on making own tank from steel, what thickness is used and as I will be using zetec with bike carbs do I build a swirl pot into it? do I still need a return pipe? what sender unit have people been using and should there be a vent pipe on it?
hope someone can help with this.
cheers
tony

[ozzy1]

I would think 1-1.5mm would be sufficient.Either build in a swirl pot or use a separate one,its a good idea i think especially if you want to do track days.I would put a return in as it can always be blanked off.Vent pipe also required.
The sender will need to be compatible in resistance to the fuel gauge you use so you will need to check.

[Enoch]

You don't need to fit a swirl pot if you have carbs - the float bowl of the carb itself fulfills the same function. Tanks for racing usually have baffles fitted though to avoid fuel starvation on long curves. All tans need some sort of venting so that you don't build up a vacuum and stop the fuel flow. My Westfield tank has a one way valve with a breather pipe exiting out of the bottom of the car. Production cars seem to have a pipe that comes back up to the filler.
Enoch

[onedayTM]

Cheers guys,
tony

[snapper]

Just my thoughts but if building a tank I would have a built in swirl pot in the bottom with a fuel take off, a fuel return to the top and a separate tank breather plus baffled, that way any upgrade at any time in the future will be catered for.

[Coozer]

Build a swirl pot into the bottom of the tank, this will will help with the gravity feed to bike fuel pump, and as above, fit return and breathers. I would also advice running a return pipe up to the engine bay and blanking off. This will save a load of hassle later when you upgrade to injection.

I thank you,
Steve