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IRL: 54mm Throttle bodies (not Evoluzione)

Joined Mar 2011
15 Posts | 0+
Had these made up from some spare stock 51mm I had kicking about

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

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
 
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:-(
 
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