Won't be needing this any more
Discussion
Decided to ditch the stock fuel system, and move on to a swirl pot set up, so me and my trusty companion ripped out the old set up in minutes
I'm going to have the fuel pump,filter,swirl pot and reg in the boot instead, keeping it all accessible,clean and easy to upgrade
I'm going to have the fuel pump,filter,swirl pot and reg in the boot instead, keeping it all accessible,clean and easy to upgrade
Edited by GasMunkey on Monday 1st April 16:29
GasMunkey said:
Decided to ditch the stock fuel system, and move on to a swirl pot set up, so me and my trusty companion ripped out the old set up in minutes
I'm going to have the fuel pump,filter,swirl pot and reg in the boot instead, keeping it all accessible,clean and easy to upgrade
depending on your setup, there is a integral fuel filter/rgulator that GM uses, that holds 62psi. clamps in place of the old fuel filter, so less plumbing to deal with. just run a single line to the engine, the return goes back from the filter/regulator to the tank.I'm going to have the fuel pump,filter,swirl pot and reg in the boot instead, keeping it all accessible,clean and easy to upgrade
Edited by GasMunkey on Monday 1st April 16:29
so far, ive had no fuel slop issues, though i can see some may want a swirl setup for some uses.
I see that gm filter/reg I was going to go for it, but decided to replace the lot and run larger lines
I'm very glad I did!!
As soon as I touched the tank the rubber just split where it goes through the boot, and found a fist size silicon ball next to it, the cooper lines are on there last legs and the hoses where pinched up in 2-3 places so it was a time bomb any way,
I'm very glad I did!!
As soon as I touched the tank the rubber just split where it goes through the boot, and found a fist size silicon ball next to it, the cooper lines are on there last legs and the hoses where pinched up in 2-3 places so it was a time bomb any way,
Edited by GasMunkey on Monday 1st April 18:50
carsy said:
Whats the swirl pot for and why 2 pumps?
Basically you are creating a surgeless fuel tank that is fed from the main fuel tank by a low pressure / high volume pump and then your high pressure pump runs from that which feeds the engine fuel rail ... it means that you have less issues with fuel starvation under "enthusiastic" driving. 
SILICONEKID350HP said:
carsy said:
Whats the swirl pot for and why 2 pumps?
The pressure is neutralised when the fuel enters the vessel ..Like a heat store ,needs to pump in and pump out .. SILICONEKID350HP said:
I am a plumber !
Yup ... 
Bassfiend229hp said:
......the swirl pot is at the same pressure as the fuel tank. There's no pressurisation of the swirl pot, it's simply there to provide a "clean" reservoir of fuel that allows for the surging (and possible brief pumping of air instead of fuel) from the fuel tank under enthusiastic driving so that the high pressure pump - that draws from the bottom of the swirl pot and is supplying the fuel rail - doesn't ever get starved of fuel and pump air......
In most systems this is true but having it under pressure has advantages.Use a self regulated low pressure pump at about 6-7psi to supply the swirl pot. Make the return to the tank no more than a pin hole to dissipate any trapped air. The pump will then hold the pot at 6-7psi.
When you accelerate really hard there will be a high demand on the high pressure pump. If the supply to that pump is only the head of fuel in the pot then cavitation can occur at the HP pump inlet. Having the pot at pressure will eliminate this or minimise it.
Steve
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