fuel pump to my e21 with 325 engine

[Dj_mizmo]

How mutch fuel dose the original fuel pump puch?


Sorry for my bad english.

[Dj_mizmo]

its from a bmw e21 323i fuel pump.

[nas80]

3 bar I am 90% sure is standard pressure

[Dj_mizmo]

how many LPH?

[nas80]

Your upgrading it? Then lph doesn't matter if the pump is good.

[Duracel79]

The std 323i pump does not set itself to 3 bar. It has a lockout pressure of about 7-8 bar and there is a regulator in the metering unit which sets the injection system pressure to 5-6 bar.

Flow rate from the pump is plenty for an M20B25 from an E30 with the E30's 3 bar regulator. I was running a std 323i pump for my 2.7 with emerald injection running 210bhp.

So if your pump is working correctly and not too noisy you won't have a problem using it for a 325i engine on Motrionic.

Cheers

Ben