Mr RS500

iTrader: (6)

Im trying to fit my fuel pumps etc in the 3 door and need advice

As you can see by the piccs , the bottom 2 pumps are lift pumps and will be pulling from the tank ( not fitted yet ) and feed the swirl pot .

From the bottom of the swirl pot is the outlet that will feed the top 2 pumps that go to the filter and then to the engine

I have a return from the engine to the top of the fuel tank , and also a return at the top of the swirl pot to the fuel tank

What i want to know is if i have done anything wrong or im missing somthing

Paul

3DOOR ARY

iTrader: (1)

as you well know,i wouldn't have a clue

what i do know is ,wow

Ary

Micky

Sounds good to me.Regards,MIcky

TimC

iTrader: (1)

Have the return from the engine going into the swirl pot, with the very top outlet on the swirlpot feeding back to the tank as an overflow return

Lloyd

the first 2 pumps look like cos items,and are not lift pumps. ie you will have to gravity feed them.
wont that totally defeat the object of having a swirl pot?

cossie604

iTrader: (2)

I know what your saying regards the pumps being gravity fed but I dont understand how this will defeat the object of having a swirl pot?


Love the spare wheel well infill Paul! Who made that for you?

Mr RS500

iTrader: (6)

They are all cossie pumps , and the swirl pot is only there as there isnt one in the tank

So what am i missing ?? this is what im asking

I know your saying that the tank can get low and starve the pumps that fill the swirl pot , But then thats why the swirl pot is there as this SHOULD hold enough fuel till the pumps grab more fuel and refill the swirl pot

Mr RS500

iTrader: (6)

Made by philloy mate i gave him a cardboard template and he made that

cossie604

iTrader: (2)

Im running a cossie pump as a lift pump but tbh Ive got it in its standard possition coming from a standard tank that now has no internal swirl pot. Seems fine so far. Do you really need two cossie pumps as lift pumps though? As said previously by someone, you'd be better returning from the rail to the swirl tanks top side pipe then use the very top pipe as an outlet to the tank.

Mr RS500

iTrader: (6)

Great info mate cheers exactly why i did this post as i knew i would miss somthing

cossie604

iTrader: (2)

Hope he kept the template

Mr RS500

iTrader: (6)

All i thought mate was if 2 pumps are pulling from the swirl pot 2 should fill it

Plus it looks sexy , and all 4 pumps can be turned on and off individually so i can turn one lift pump off i its not required , and this also gives a spare if one should fail

JTECH James

iTrader: (13)

the problem with returning from the engine to the swirl pot is you get hot fuel in the pot, returning to the tank helps this issue...


paul are you going to pressure the swirl pot? by jetting the return line?

cossie604

iTrader: (2)

It hardly gets hot does it? Luke warm maybe

Mr RS500

iTrader: (6)

So im better returning to the tank ?

Whats jetting the return mean ?

JTECH James

iTrader: (13)

well thats the reason many people dont run them like that... as the fuel just keeps warm, and gets warmer each time it circulates. returning to the tank gives it much longer to cool, and it mixes back with cool fuel.


if you jet(restrict) the return from the pot to the tank, it keeps the swirl pot under pressure. i think this is the way to run them, with a 3mm jet in the return line.

im no expert, i would recomend speaking to martin at reyland, or tony from turbosystems or stu at msd

cossie604

iTrader: (2)

Just for looks then....ya tart

Two maybe pulling but they wont be flowing anywhere near as much as two pumps going full chat with not much pressure to battle against. Does look funky though!

Lloyd

no, the swirl pot will run dry seconds after the 1st pumps stop getting fuel,plus cos pumps are lubricated by fuel passing through them,so if they run dry,they will fail very quickly.

Mr RS500

iTrader: (6)

To be fair tho , i shouldnt let the tank get that low anyway

That is the same as letting a tank get too low with an internal swirl pot isnt it ?

Mr RS500

iTrader: (6)

So what your saying is ,,Return to the tank not the s/pot , and the return / overflow from the s/pot to the tank should be a small pipe ?

this is exactly how i thought hence the smaller return on top of the s/pot

JTECH James

iTrader: (13)

thats how i think it should be,

the return from the swirl pot to the tank doesnt have to be small pipe, they just put a restrictor in it, like the std amal valve idea....

Turbosystems

iTrader: (5)

what fuel tank are you intending to use

Mr RS500

iTrader: (6)

Philloy is making me one Tony

Will sit on the boot floor to the right of the pumps etc

Mr RS500

iTrader: (6)

The tank i will use will have a small box ( about 6" x 6" x 6" ) that will sit through a hole in the boot floor that will be like a pot , this will have the fitting for the fuel lines that will supply the 2 " lift pumps "

I will need to drill 2 holes in the alloy wheel well to let the lines through