Swirl pot in fuel system

[Jimbob]

I've heard this quite a bit recently, can someone shed some light for me?

I'm trying to get my head round how this helps..........Is it purely providing a head for the bigger pump? How do you regulate the swirl pot level/pressure?

Cheers


James

[Hedgehog Dodger]

Doesnt the tubby have some sort of standard 'swirl pot' in the tank already?

[MegatronUK]

You generally have a swirl pot in the system when the original tank was designed for a non-fuel-injection system - which obviously doesn't have a high pressure return. The fuel returned goes straight back in the tank will tend to aerate and warm up the fuel already there... not a good thing.

The swirl pot lets the fuel cool slightly and also return to the tank under a lower pressure (not squirted straight in!). Fuel injected cars will already have a tank designed to cope with a the return line of a fuel injection system.

It tends to be older, converted cars, or those with alloy racing tanks that have external swirl tanks.

Of course, there are also swirl tanks for water... which you generally see on Cossies and other modded turbo cars... but thats a completely different thing.

[V8Killer]

So where did you copy and paste that from?

On an MR2 its mainly used to prevent fuel starvation during har cornering (major track abuse )

[MegatronUK]

nowhere... when building the '7 and the Escort we thought about fuel injection/throttle bodies.

Went with big rorty carbs on both in the end though