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do i need a fuel rail for 550cc injectors on an agu engine

Discussion in 'A3/S3 Forum (8L Chassis)' started by Neru, Apr 29, 2012.

  1. Neru
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    Neru Member

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    [Apr 29, 2012]
    Im doing a turbo upgrade and not sure if I need a new fuel rail for the 550cc injectors or will the stock one will be sufficient

    Cheers
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  3. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Apr 29, 2012]
    Stock is fine... flows ok on all the BT builds I have had a hand in... RMR manifold requires a specific fuel rail purely do to the design on the manifold... just done an LCR with stroker and 3071 turbo putting out 460hp/390ftlb on 750cc injectors and std fuel rail...

    550cc isn't going to tax the fuel rail but depending on the power level and FPR you plan to use then an inline pump might be an idea..

    <tuffty/>
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  4. Neru
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    Neru Member

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    [Apr 29, 2012]
    yeah i have a 044 inline pump on the way, im not going that big just an F23 turbo

    what don't i need from this list

    550CC BOSCH EV14 FUEL INJECTOR 4 69.50 278.00T
    INJECTOR CONNECTOR ADAPTER, BOSCH EV1 TO USCAR, FOR BOSCH EV14
    INJECTORS
    4 11.2525 45.01T
    INJECTOR ADAPTER TO CONVERT S4 2.7T FUEL RAIL TO RS4 INJECTORS 4 9.75 39.00T
    BILLET FUEL PUMP KIT FOR VW/AUDI APPLICATIONS WITH 044 PUMP
    ***MK4 VW***
    1 385.00 385.00T
    AUDI/VW 1.8T BILLET FUEL RAIL 154.00T
    FUEL PRESSURE REGULATOR ADAPTER FOR INTERNAL RAIL VW/AUDI
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  5. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Apr 29, 2012]
    These are fine... you need the adaptors to convert to the VAG wiring...
    Won't need these....
    Run a 3bar FPR with those injectors for the F23... you getting the Frankenturbo mani too?

    <tuffty/>
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  6. Neru
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    Neru Member

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    [Apr 29, 2012]
    So you think I won't need the fuel pump, I am upgrading pistons and rods and DNA tuning recommended a fuel pump to. Hit 200kw atw.... Yep got the manifold as well
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  7. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Apr 29, 2012]
    Its an A3 you have isn't it? std A3 pump is not as powerful as the stock S3 pump which in good condition should be man enough but seeing as you have an A3 I would be tempted to stick an inline one on too... I have stuff in my build thread on how I did mine...

    <tuffty/>
    Last edited: Apr 29, 2012
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  8. Prawn
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    Prawn My other car is a MINI!!!!

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    [Apr 29, 2012]
    also, to fit 550cc injectors into the AGU manifold and fuel rail, you'll need some injector spacers, as the 550's are much shorter than the AGU injectors.

    I have a set of new unused injector spacers I didn't use in my build. cost me £75 to import them from the states!

    If you're interested drop me a PM :)
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  9. Neru
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    Neru Member

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    [Apr 30, 2012]
    Thanks tuffty yes I do. Have an a3

    Prawn I'm in Australia so I think it might be cheaper to get everything from the US... Thanks for letting me know about the spacers tho
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