fuel supply?

[e30leigh]

just had a look. there is a diy walbro 255. its sort of what im asking.

but my real question is should clear up. my car seems to have its fuel pump externally under the car. while our work race e30 has its fuel pump located intank. im not 100% but i thought that the models with the externally fitted pumps still had a small intake pump to lift the fuel out of the tank before the external one takes over. or have i herd bad info?

id look into it myself but have been struggling for the free time.

i mainly need it cleared up if i have one or two pumps? i have an '88 fl 318i m40, if that helps at all?

cos then i can design and start buying the fuelling system.

thanks , leigh.

[e30leigh]

cool thanks man.

[Hey_You]

Check in the DIY section, there is a 044 pump retrofit article that will interest you and answer all your questions.

[e30leigh]

so just woundering what everyone is running in ways of pumps?

i was gona run a bosch 044 external for the feed pump. but worried the internal lift pump wont be able to keep up?

what has been done? serge tank perhaps with the stock lift pump? or is a larger lift pump required also? im not sure how fast the factory item can pump in order to keep the 044 fed with fuel.

thanks, leigh