Injection fuel pump

[alga]

Hi all. What is the best fuel pump to use for a fuel injected Zetec engine? There is a Bosch pump used in more than a decade's worth of Audi, VW, BMW, Volvo and other cars (Bosch parts 0 580 254 9xx), is that the one of those? What fittings required, what diameter fuel pipes, tank outlet are best? What about the filter? Thanks!

[big_wasa]

Ive used a bosch copy found on ebay and it runs fine.

mine is 3/8" 10mm inlet 5/16" 8mm outlet.

Mines on a standard 2.0 zetec.

[twinturbo]

You need a pump that pushes around 3 BAR, some pumps are designed for higher preasure systems and may overfuel.

TT

[AshG]

i disagree a high pressure pump that is capable of 3 bar or above is fine. the fuel pressure regulator on the end of the fuel injector rail is what sets the pressure.

i got one of these the other day very nice but of kit

http://cgi.ebay.co.uk/ws/eBayISAPI.d...#ht_9780wt_905

[twinturbo]

Sure the regulator is there for a reason and does a job.

but for example, a pump designed for a K-Jetronic application with mechanical injection is likly to put out 7-8 Bar. Where as the L-Jet based applications (on which the EEC-IV/V is based) is more likly to need arround 3 Bar max.

Best to try an match the pump to a similar application rather than just buying anything. If you have too much flow, and too much pressure then the system won't be able to return the flow.

TT

[AshG]

Originally Posted by twinturbo

Sure the regulator is there for a reason and does a job.

but for example, a pump designed for a K-Jetronic application with mechanical injection is likly to put out 7-8 Bar. Where as the L-Jet based applications (on which the EEC-IV/V is based) is more likly to need arround 3 Bar max.

Best to try an match the pump to a similar application rather than just buying anything. If you have too much flow, and too much pressure then the system won't be able to return the flow.

TT

agreed point made

[twinturbo]

Too much is not always a good thing..

Imagine this on a 2.0 Zetec.

[alga]

Here's a catalog of Bosch motorsports pumps with technical data:
http://www.bosch.com.au/content/lang.../fuelpumps.pdf

But my main question is -- how do you join the outlet of the tank (8mm presumably?) with the 12 mm inlet of the pump?

[twinturbo]

But a reducer from Burton

TT

[big_wasa]

steel reducers bought on ebay. They have barbed fittings.

http://cgi.ebay.co.uk/13mm-8mm-BRASS-BARBED-Fuel-Hose-Joiner-silicone-5-16-/250618993024?pt=UK_CarsParts_Vehicles_CarParts_SM& hash=item3a5a0e5980