Fuelling for my BMW K build
Turbo Mini Forums

Hi all,

Need a little help on my some fuel parts that I need to buy for my BMW K build.

Originally I was going to use twin carbs so I got the facet silver top fuel pump. Now I am using K1100 throttle bodies with a VEMS ECU - will I need a different fuel pump, if so what one would be best?

Also do i need a fuel regulator or does the VEMS ECU sort that part out - as you have probably guessed, im not to up on the fuelling side of things and ECU's. I have seen on minisport that there are regulators with boost valves which sounds interesting is this something I would need?

Thanks,

Martin

Hi Martin,

You would need a different fuel pump, thats for sure, and you would need a regulator. The regulator built into the original fuel rail on the K1200s is rather nice. Alternatively you could use the regulator that probably came with your K1100 package.

There is loads of questions like these already answered on efiminis by the way:)

Use an MPi tank its made for the job and the neatest solution

yes, that is an option, but would still need a regulator.

Hi thanks for replies,

I have found a topic on efis that has explained alot - thanks miniminor63

Although putting the MPI tank sounds a good idea. Would it give the same results as putting in an external Walrbo 255 pump etc?

Thanks again,

Martin

yes, it would work nicely with a MPI tank, no worse than a walbro pump externally

You can now get a walbro 255 internal pump conversion for the mpi tank.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Is the Walbro 255 internal pump better than the standard MPI one, Will it be worth getting?

Im using a Ford puma pump in my mpi tank. Does the job nicely and they are cheaply available.

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1/4mile in 13.2sec @ 111 terminal on 15psi