Rogeyboy

iTrader: (2)

Would fitting one of these to my fuel system help with the fuel starve issues i get, anything around 1/4 tank or below and hard cornering causes the car to fuel starve...?

haz87

Fuel accumulator only smoothes out pulses. Can't see it doing anything for starvation tbh

mentalasanything

They're pretty big, I'm sure it will help somewhat. Are you running an EFi in tank pump?

Lee

1.9 xr2 on 40's

are you sure the fuel gauge is correct?

frst's dont have an accumulator so i dont think its required for this but maybe there is a problem with the tank such as from non injection car or something

(i have an accumulator)

Karlos G

iTrader: (4)

No because if the pump is not getting fuel then fuel pressure will drop accross the whole system...... Injectors do not suck! lol

Rob_DOHC

iTrader: (4)

Im not sure tbh, the accumulator is supposed to maintain fuel pressure when the engine is off, and acts a bit like a capacitor. If the fuel pump see's a very brief lack of fuel then I think the accumulator would maintain pressure. However this would be a very brief event. As Karlos says pressure should be equal through out the system, this would be true for a longer 'event'.

If the accumulator had a one way valve on its intake it would work.

Rob,

Karlos G

iTrader: (4)

I didnt realise they actually maintained pressure, I thought they were just a reservoir as such?.... But than I guess that would be pointless, hadnt really thought about it before!! lol

Rob_DOHC

iTrader: (4)

Lol, they have a piston and spring. They originally were used to maintain fuel pressure with the engine off, to stop fuel vaporising in the lines with a hot engine bay... which made restarting the engine hard.

Danster76

iTrader: (2)

Mine went in the bin!

Karlos G

iTrader: (4)

Ah I see! In that case yes it might help if he's only getting momentary drops in pressure.
I retained mine as I saw no reason to remove it.

Rogeyboy

iTrader: (2)

Ive got an EFi in tank pump, and i never got the issue under hard cornering until i turbo'd the car and fitted an uprated pump. But i guess as the demand for fuel rises and any momentary shortage in what the pump can draw will have a knock on effect.
I don't really have the funds or desire to go for an external pump and swirl pot etc... So was hoping an accumulator could help?
If not, maybe an MFi tank/pump feeding a small swirl pot in the spare wheel well the on the the filter/fuel rail.

Its only under 1/4 of a tank i get the issue, also the EFi tanks have a swirlpot inside, albeit a very poor designed one!

Karlos G

iTrader: (4)

Just keep it over 1/4 of a tank Rog! lol

Rogeyboy

iTrader: (2)

Yeah i guess... If it goes below don't hit corners hard lol

matthart

This might explain the problem I had the other day with mine, I went round a long bend at full chat and the car coughed and chugged so I let off and got scared and drove it home off boost!
It was under 1/4 of tank though, never had it happen before but I've never really given it full beans on a low tank before...

I'm also looking for an MFI tank Roger, I get fed up of dropping the tank to check the pump!

Versus_Creations

iTrader: (1)

You dont have to have an MFi tank to do this. Any fuel tank and pump setup can have an external swirl pot to stop your issue with cornering.

When i turbocharge Vans or such like (Bantams, combi etc) i add an external swirl pot and pump, if the customer want to save a little cash and avoid a different tank or custom setup made.

An external swirl pot is around £60 off ebay and pipework is not alot unless you want to use decent connections. A lift pump is around £55 so i guess for £150 ish you could stop the fuel issues and have a decent reliable fuel system.

Rogeyboy

iTrader: (2)

Jano, that sounds like a good option... Can you post a pic up of a similar setup? What do i do with my in-tank pump?

Matt - the trouble is you dont want it losing fuel a running lean mid corner and melting something or detonating! I mean short-term the answer is to keep the tank pretty full but i think either an MFi tank/pump and swirl pot (purely because the MFi pump is such a high pressure) or get a swirl pot etc fitted to our tanks as Jano says.

Versus_Creations

iTrader: (1)

You could use the pump in tank as the lift pump to swirl pot, then buy an external pump to feed the fuel rail. Return to a swirl pot, so the swirl pot will always be full and the return from the swirl pot back to the tank.

Same as what i have on my own cars but use an external pump as a lift pump.

1 external pump
1 swirl pot
lines and fittings.

Dennis_Wiseman

iTrader: (1)

Which pump are you now using mate?

Currently researching what fuel pump to use and spotted you had issues with 048 and 044 Cossie in tank pumps.