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  1. #1
    Registered User RS8's Avatar
    Join Date
    Jul 2012
    Location
    Sweden
    Posts
    240
    With a modern injector like EV14, you can drive with over 2000cc each without problems, (But I could not find any larger EV14 that have the same length etc. as the ones I used, so therefore I bought these 1500cc now.)

    But you may have problems getting the right values ​​when you use air mass meters? But for me with MaxxEcu I can use whatever I want.

    I also drive at 3 bar

    I don't know how much better an Walbro 460 flows than 450?
    But if you have 3bar + 2bar boost = 5bar = then one 450 can deliver fuel for maximum 640hp with E85
    But if you have 4bar + 2bar boost = 6bar = then one 450 can then only deliver fuel for maximum 550hp with E85 so 2 pumps will only flow for maximum 1100 engine hp.
    RS6/S8 engine, 6spd tdi 01E, EFR7163 turbos, custom built exhaust manifolds, S8 camshafts, MaxxEcu Pro, wagners ic's, bigger fuel rails, AN8 fuel line, 2xwalbro 450lph fuel pump
    and EV14 1500cc fuel injectors in my S8/RS8

  2. #2
    Registered User
    Join Date
    May 2010
    Location
    Sydney
    Posts
    97
    Yep definitely need more fuel pump then....

    Comes down to usage I think, as my car is mainly a daily driver I need to keep that low pulse width control

    Quote Originally Posted by RS8 View Post
    With a modern injector like EV14, you can drive with over 2000cc each without problems, (But I could not find any larger EV14 that have the same length etc. as the ones I used, so therefore I bought these 1500cc now.)

    But you may have problems getting the right values ​​when you use air mass meters? But for me with MaxxEcu I can use whatever I want.

    I also drive at 3 bar

    I don't know how much better an Walbro 460 flows than 450?
    But if you have 3bar + 2bar boost = 5bar = then one 450 can deliver fuel for maximum 640hp with E85
    But if you have 4bar + 2bar boost = 6bar = then one 450 can then only deliver fuel for maximum 550hp with E85 so 2 pumps will only flow for maximum 1100 engine hp.
    OZ RS6, 0A3 manual, Tilton Carbon/Carbon Triple Plate, twin GTX3071s, twin Tial mv-s gates, Custom ICs, BMC OTA filters, A8 MAFs, 980cc injectors, etc

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