wrxbart

iTrader: (5)

Hi does anyone know how to fit a fuel swirl pot on a 93 wrx its got reversed parallel fuel rails walbro pump and FPR. Many thanks again to everyone

silent running

A swirl pot's a pretty universal device, although I always thought they were used more for coolant than fuel. But anyway, the feed goes in the upper pipe, the onward flow in the bottom pipe and there's usually a vent pipe at the top for the air.

wrxbart

iTrader: (5)

Cheers for your reply thought thats how they were piped up! But how does the presure from the pump keep up if there is a vent pipe?

silent running

Well that's the thing, I wouldn't really have a swirl pot on a fuel injected car. I can't see how it would be any use, because there shouldn't be any air in the system AFAIK. Swirl pots are very useful for coolant plumbing if you're worried about airlocks etc. But injected fuel systems? Weird. TBH I'd just take it out and rejoin your fuel hoses.

Area 52 Autosport

A fuel swirl pot can be VERY handy, more so if you're doing track days or the like.
With anything approaching or below 1/4 of a tank of fuel, hard cornering (particularly right handers) will see fuel swilling away from the fuel pick-up in the tank.

That's air getting sucked in then, which gets into the fuel rails, surfacing as a heavy stutter, screwing up fuelling, leaning right out until the air picked up has passed through the system.

A fuel swirl pot can eliminate this, we run them on most of our real high HP cars, or recommend keeping above 1/2 a tank of fuel in at all times.

silent running

Very true, I was more thinking of street driving.