fuel Injection pump?

[F.C.]

I'm looking for suggestions for a continuously rated (i.e. not voltage controlled) fuel injection pump that can support 900+BHP.
Anyone with experience of fuel injection builds care to comment?

[F.C.]

Steve_D said:

A pair of Bosch 044.
Either installed in tank or below a pressurised surge tank.

Steve

I did think of tandem 0044's but couldn't find any info on pairing them up.
Would think they need a fair head as they don't like sucking, how would you pressurise the swirl pot/tank?

[F.C.]

MattYorke said:

Aeromotive A1000?

Voltage controlled unfortunately.

[F.C.]

Steve_D said:

Google 'twin bosch 044 instal' and go to images. Lots of choice and plenty of manufacturers supplying manifolds and mounting brackets.

Supply your swirl pot/surge tank with a pair of low pressure pumps such as the ones supplied by the factory. These run at about 6-7psi and are self regulated. The fuel rail returns to the pot. Fit a return from the pot to one of the fuel tanks but restrict it to nothing more than a dribble as all you want to do is allow any trapped air to escape from the pot/tank. This restriction will allow the LP pumps to pressurize the pot to 6psi and help prevent cavitation at the inlet of the HP pumps.

Steve

Cheers for that, It seems I have this set up already, just need to swap out the old pump for the 044's.
As you mentioned I now see several solutions to mount these pumps, I wasn't sure they were fitted with check valves but am now happy they are, so hopefully will do the job nicely.

[F.C.]

andygtt said:

Alternatively You could go the aeromotive A1000 if you wanted a single pump, and I have an unused on on the shelf I would sell for less than a new one (around the price of 2 044's).

guess why I want to change to 044's.
A1000 purpled out after three years , only just found out they are not continuously rated at full pressure and need a voltage/"pulse" controller to run full time.
The nice thing about having two 044's is if one fails you should still have enough flow and pressure to run off boost in limp mode as it were.

[F.C.]

GarethGTR said:

Down sides:
You will have to mount the fuel pump. Not hard, but needs a bit of thought.
There will be a minimum fuel level in the tanks below which you may have surges due to air being picked up.

This is precisely why I have stuck to two lifters (one standby) linked tanks and a swirl pot now feeding two 044 Bosch pumps, I can't afford to have cavitation on a boosted application. I did take a look at this:
http://www.summitracing.com/dom/parts/aei-18688/ov...

Very easy to fit and in a future build I would use this type and baffle the fuel tank(s) accordingly.

[F.C.]

GtrMan said:

Since we are on this subject...

What would be the best as Low pressure pumps to feed the Surge pot and keep it filled supplying it from both tanks at one time...was thinking of a pair of Sytec ( one for each tank) in line , many models to choose from....the 3 bar should do ok.

Edited by GtrMan on Sunday 30th March 19:42

You don't need a high pressure pump for supplying a swirl pot.
Better a low pressure high volume pump that you can regulate (or not) depending on your system.

[F.C.]

GtrMan said:

Thanks for the info........

Using a return on the surge tank can allow for a medium high press pump , like the 3 bar quoted.

This would be a mistake IMO.
You don't need 45PSI, a 7psi(or so) high volume pump will take the stress out of the system in heat, amps and noise.

[F.C.]

GtrMan said:

Thanks again for the info .... but have to say I have seen such systems using such pumps as primary pumps.

So suggestions to low press / high volume pumps available..brands etc...

What power output are you expecting to go to?
Something like a Facet 60302 Posi-Flow to lift the fuel to the pot and a Bosch 044 pump for the injection to 500+ bhp and a pair of bosch 044's if you are going higher
I've just replaced an Aeromotive A1000 for this set up:
http://atecautotechnic.co.uk/en/fuel-pump-and-filt...
A nice way to mount two pumps and a filter on one bracket.

[F.C.]

srreck said:

Holley Black Profuel as primary pump (with -10AN fittings and hose) 120GPH at 9psi or 140GPH at freeflow.
Twin Bosch 044 for HP.
Cheers,

Yep, what he said sounds perfect.
With a twin pump secondary set up if one pump fails, with the correct set up you still have the prospect of being able to drive in "limp" mode this was one of the reasons I went for the twin 044's on my boosted set up.

[F.C.]

GtrMan said:

Thanks again... HP pump maybe a single one ..A deatschwerks 300.

Aren't those are in tank only?

[F.C.]

GtrMan said:

F.C. said:

Aren't those are in tank only?

Yes ...it will be in the surge tank.

Ok. Novel idea.