Fuel Pump

[Richard 858]

Is there a preferred / recommended fuel pump I'll need to match with green giant injectors & C38 supercharger with intercooler but on standard fuel reg. (at least to start with)? I've removed the existing (standard ?) one whilst cleaning down the rear chassis & it's seen better days, mind you not surprising considering the location, I mean they must have been up all night working that out

[SILICONEKID346HP]

Richard 858 said:

Is there a preferred / recommended fuel pump I'll need to match with green giant injectors & C38 supercharger with intercooler but on standard fuel reg. (at least to start with)? I've removed the existing (standard ?) one whilst cleaning down the rear chassis & it's seen better days, mind you not surprising considering the location, I mean they must have been up all night working that out

I fitted the cerbera pump,I mean the one they fit to the cerbera, good for over 450hp . ,I had problems with the Bosch 044 ,it needs a swirl pot .

If you do a search you can find the Bosch part number which is fitted to the cerbera


http://www.pistonheads.com/gassing/topic.asp?h=0&a...

That's why I went for the Cerbera pump

Standard pump 100/L per hour 280hp max

Cerb pump 130/L per hour 400hp

O44 pump 200/l per hour. 600+ hp


Upgrade the wiring ,I now get 12volts at the pump.

Edited by SILICONEKID346HP on Sunday 26th January 19:20

Edited by SILICONEKID346HP on Sunday 26th January 19:32

Edited by SILICONEKID346HP on Sunday 26th January 19:33

[Hoofa]

It doesn't need a swirl pot, I ran a bosch 044 , the only thing is upgrade your fuel lines to dash 6 size flow and return. I welded a -6 fitting onto the fuel rail. Use I high flow fuel filter and check your outlet from the fuel tank

[SILICONEKID346HP]

Hoofa said:

It doesn't need a swirl pot, I ran a bosch 044 , the only thing is upgrade your fuel lines to dash 6 size flow and return. I welded a -6 fitting onto the fuel rail. Use I high flow fuel filter and check your outlet from the fuel tank

I replaced all the pipe and blew through them ,the problem I had is on quarter of a tank it started sucking in air .

I disconnected the petrol pipe and put it in to a petrol container ,the 044 pump filled it in seconds .

[phazed]

If the Lucas is rated to 280 bhp, why do a lot of us achieve far more on it?

[Hoofa]

SILICONEKID346HP said:

Hoofa said:

It doesn't need a swirl pot, I ran a bosch 044 , the only thing is upgrade your fuel lines to dash 6 size flow and return. I welded a -6 fitting onto the fuel rail. Use I high flow fuel filter and check your outlet from the fuel tank

I replaced all the pipe and blew through them ,the problem I had is on quarter of a tank it started sucking in air .

I disconnected the petrol pipe and put it in to a petrol container ,the 044 pump filled it in seconds .

How do you know your fuel guage is accurate ?, it's a flood feed to the pump, to use a swirl pot you will have to have a lifter pump. Never had a prob with my bosch

I have had a new tank built with a internal collector box ( in built swirl pot ) and gone for a intank pump. It's quiet , and a new level sender that doesn't use a float.

[EGB]

phazed said:

If the Lucas is rated to 280 bhp, why do a lot of us achieve far more on it?

Yes agree, some answers please. Or is this more PH bling.

[Pupp]

Hoofa said:

Never had a prob with my bosch

Did you run the 044 in the same location as the original Nigel, or bring it in the boot? If no problems, why did you devise another system?

[Richard 858]

EGB said:

phazed said:

If the Lucas is rated to 280 bhp, why do a lot of us achieve far more on it?

Yes agree, some answers please. Or is this more PH bling.

Exactly, I'm expecting to get close to 400hp at the flywheel and would rather get this right from the start, hence the original question.

[neal1980]

I ran a Bosch 044 originally and had zero problems with it. I upgraded the wiring to the pump. Also upgraded the fitting from the tank to a larger outlet 15mm from memory and it ran fine. I have now switched to a twin setup with lifter pumps for bigger bhp.

I think the TVR setup on the tank is tiny to try and feed a bigger pump.

[Richard 858]

Anybody tried this one yet ?

http://www.ebay.co.uk/itm/V8-EFI-external-Bosch-ty...

150 litres / hour @ 3 bar

Edited by Richard 858 on Monday 27th January 13:10

Edited by Richard 858 on Monday 27th January 13:13

[QBee]

Daz mentions sucking air at 1/4 tank......I think they all do that sir, on left hand bends. I have to refuel on track days when the car gets slightly below half full on the gauge (1/3 full in reality) as otherwise when all the fuel camps over on the right side of the tank the engine gives a polite cough to remind me I need to fill up.

You could baffle your tank instead Daz......you baffle us lot often enough

[fatboychim]

QBee said:

Daz mentions sucking air at 1/4 tank......I think they all do that sir, on left hand bends. I have to refuel on track days when the car gets slightly below half full on the gauge (1/3 full in reality) as otherwise when all the fuel camps over on the right side of the tank the engine gives a polite cough to remind me I need to fill up.

You could baffle your tank instead Daz......you baffle us lot often enough

Yep had that, the gooseneck at Cadwell does it to mine, the stickier the tyres the worse it is.

[Hoofa]

Neal is right, its the outlet from the tank that lets it down. Yes the bosch was in the same position as the orignal. The reason for the change is i was seeing a slight pressure drop on the dyno. Having a new tank allows a internal collector assembly to stop fuel surges. Its basically a intank swirl pot. I have opted for a walbro 450gts intank pump

[QBee]

fatboychim said:

QBee said:

Daz mentions sucking air at 1/4 tank......I think they all do that sir, on left hand bends. I have to refuel on track days when the car gets slightly below half full on the gauge (1/3 full in reality) as otherwise when all the fuel camps over on the right side of the tank the engine gives a polite cough to remind me I need to fill up.

You could baffle your tank instead Daz......you baffle us lot often enough

Yep had that, the gooseneck at Cadwell does it to mine, the stickier the tyres the worse it is.

Let me know next time you are heading for deepest Lincolnshire - I am getting a Cadwell itch again......and I only live 40 miles from the circuit if you want an overnight billet on the way

[EGB]

phazed said:

If the Lucas is rated to 280 bhp, why do a lot of us achieve far more on it?

I presume you don't have the standard Lucas 280? Fuel pump on your 5.5 set up? Good to know what you have now.

If tank outlet standard is inhibiting flow to pump then a higher RR bhp will be evident on a full tank due to increased vertical fuel weight, compared to a 1/4 tank.

[SILICONEKID346HP]

Well Iv`1e been very happy with the cerbera pump and it fits the original bracket and the larger brackets .

If half way between the standard and 044 pump.

Edited by SILICONEKID346HP on Monday 27th January 18:01

[Richard 858]

Daz, are you sure you don't have shares in WS ?

[Richard 858]

Seriously though Daz, what fitting is needed for the outlet ?

[SILICONEKID346HP]

Richard 858 said:

Daz, are you sure you don't have shares in WS ?

You don`t need to buy from them ! I will find the part number for you so you can buy elsewhere.