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Thread: IRL: 54mm Throttle bodies (not Evoluzione)

  1. #1
    Baby Twin
    Join Date
    Mar 2011
    Posts
    15

    IRL: 54mm Throttle bodies (not Evoluzione)

    Had these made up from some spare stock 51mm I had kicking about

    http://s813.photobucket.com/albums/z...ttle%20Bodies/

    One set is stamped -
    6261-560
    ZB01-B

    The other is stamped -
    6261-560
    ZB01-B - ScF

    Think they are off RSVs(open to correction), they will fit all the Falcos, RSVs, Tuono V990s from 98-2003 (& maybe Tuonos to 2005 - please check if you're not sure on your model)

    Features -
    Low idle adjustment designed/tested
    Repositioning of the bleed hole
    Slotted countersunk screws replaced with stainless hexagon countersunks
    1mm brass to avoid butterfly 'flutter'
    Angled the bottom of the bore into the original cast bore
    Butterflies .001 of an inch clearance - metric it is .025mm cut on 4th axis mill
    Custom red-anodized velocity stacks

    Euros 250 + shipping includes velocity stacks & what you see - fuel pressure regulator, throttle body sensor, idle adjusters etc

  2. #2
    Baby Twin
    Join Date
    Mar 2011
    Posts
    15

  3. #3
    Baby Twin
    Join Date
    Mar 2011
    Posts
    15
    looks like I have got 1 set left, any takers?

  4. #4
    Baby Twin
    Join Date
    Mar 2011
    Posts
    15
    bump!

  5. #5
    Superbike Twin
    Join Date
    Feb 2011
    Location
    The Netherlands
    Posts
    100
    What would be the benefit using these tb's over stock or over original 57mm ones?
    Forgive me my ignorance but the technical story in your firts post sounds great but does not make much sense to me:-(

  6. #6

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