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which injectors?

Discussion in 'A4/S4 forum(B5 Chassis)' started by mike1234, Jan 27, 2008.

  1. mike1234
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    mike1234 New Member

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    [Jan 27, 2008]
    hi i have a 96 a41.8t aeb with a amd remap cat bypass samco hoses and milltech exaust pushing 201bhp i just aquired a ko4 15 and was wondering what size fuel injectors would be needed to get the most out of this unit?
    and will the ecu need remapping and would you recomend amd now that they have moved to big boys toys any help would be greatly appeciated thanks.mike
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  3. robbie5
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    robbie5 NEVER ENOUGH

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    [Jan 27, 2008]
    If you're adding a new turbo you'll need your car remapped, not sure about injectors – Siena would know that answer.

    Take your car to MRC they're the dogs B***ox. www.mrctuning.co.uk
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  4. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Jan 27, 2008]
    I didnt think we needed injectors with the K04-15 as we have a 4 bar FRP fitted
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  5. macca
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    macca Member

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    [Jan 28, 2008]
    i thought we had 3bar? i'm probably wrong,. best way is to get a custom map with the work done, you are probably just within the limit of the stock injectors. they will be able to tell you when mapping the car if the injector pule lengths are too long and require a greater flow. you maybe able to get away with an adjustable fuel pressure regulator and up the pressure slightly more.
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  6. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Jan 28, 2008]
    Mine is deffo a 4 bar, look on the side it will say.Its the VW family that seem to get the 3 bar???
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  7. mike1234
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    mike1234 New Member

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    [Jan 28, 2008]
    cheers boys looks like mrc are way to go then
    :rockwoot:
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  8. robbie5
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    robbie5 NEVER ENOUGH

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    [Jan 29, 2008]
    Doug is your man – he's the owner :rockwoot:
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  9. jcb
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    jcb Active Member VCDS Map User

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    [Jan 29, 2008]
    go with 440cc injectors, but to be honest the map you get will determine the FPR or injector size.
    Custom or not, they are based on prescribed compnents.

    I would always go for bigger injectors than a higher rated FPR though
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