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returnless fuel rail system modifications

Discussion in 'Modifications' started by superspat, Nov 8, 2014.

  1. superspat

    superspat Copenworld Regular

    Jul 1, 2014
    ford cmax
    daihatsu copen
    has any one modded there return-less fual rail system ona 660cc to fit a external fuel reassure regulator in so they can raise the fuel pressure for when running more boost?

    bit stuck with this one, as all the older kei cars have a return fuel rail system but the copen being a newer car dose not have this.

    ive got a few options, plumb in a external fuel reg and external fuel filter, drill and tap a pipe in the top of fuel sender casing for a new return and crush up the intank reg so its wont return fuel that way

    get a fuel system of a avanzato, ie rail, reg and tank sender (doubt it will fit tho)

    run big ass injectors with a 255lph fuel pump and use a piggy back ecu to trim the fuelling back

    if any has over come this and modded there fuel rail system on there copen any help would be good

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