Fuel system change advice

Flying Scotsman · Posted: Mon Mar 13, 2017 11:57 am Post subject: Fuel system change advice

Hi ,
Have just got a EJ20 naturally aspirated engine to put into my beach buggy and need a few pointers on how people have gone about upgrading on the fuel side of things.
Is there a beetle tank out there that's got all the parts necessary. ie swell pot etc. Or is everything mounted externally.

Many thanks

Jim.

Kai · Posted: Mon Mar 13, 2017 9:29 pm Post subject:

Hi Jim, congratulations.

Easiest thing to do, which people will say is not the correct way to do it as they didn't do that when they built a Formulae one car or the space shuttle is too...... gravity feed your tank via the 6or8mm line into a swirl pot which feeds your HP fuel pump. You can stick a fuel return into the swirl pot.

You can change the fuel system to be returnless also meaning you wouldn't need a fuel return line, no idea how it's done though haha

If your into drive hard into the corners with low amounts of fuel or just generally like a twat you may experience fuel starvation. So decide if that's the style for and if you want a fuel swirl pot or not.

You want to gravity feed the system or else your going to enter into the world of additional lift pumps and go to a place nobody wants to be.

My type 3 has an internal swirl pot. 12mm gravity feed directly into a Bosch 044 fuel pump up to the injector rail, has a 8mm return that enters into the bottom of the tank outside of the swirl pot. It's simples.
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Flying Scotsman · Posted: Tue Mar 14, 2017 8:26 am Post subject:

Kai · Posted: Tue Mar 14, 2017 8:41 am Post subject:

My type 3 tank is a fuel injection tank so has come with the swirl pot from the Factory. Nothing to stop you modifying your tank to accept one. My first tank I used had the swirl pot welded into the bottom as I bought a LHD tank in error.

Nothing to stop you making a swirl pot that's say 1-2" tall. It's just a means of encasing the fuel pick up and ensureing it's always surrounded with fuel.

Or even weld a swirl pot to the bottom outside of your tank. Think of those deep sumps you get for a type 1 engine. Same principle.
_________________
Think......

Don't sleep and drive!!!

Flying Scotsman · Posted: Tue Mar 14, 2017 10:03 am Post subject:

Thanks for your help got plenty of ideas to get on with, it's actually a type 3 engine I'm swapping out, should make the buggy quite lively given it only weighs 540 kilos.

uote="Kai"]My type 3 tank is a fuel injection tank so has come with the swirl pot from the Factory. Nothing to stop you modifying your tank to accept one. My first tank I used had the swirl pot welded into the bottom as I bought a LHD tank in error.

Nothing to stop you making a swirl pot that's say 1-2" tall. It's just a means of encasing the fuel pick up and ensureing it's always surrounded with fuel.

Or even weld a swirl pot to the bottom outside of your tank. Think of those deep sumps you get for a type 1 engine. Same principle.[/quote]