268-272xp

[Aled Hughes]

Sorry if this has been a previous debate but I've been told that what i thought was a 268xp is now a 268 as it has a Gilardoni cylinder. Are the gains worth the conversion using a  meteor 272xp top end? Can i use the same 268 carb if i do convert? Thanks 

[adw]

All 268 were XP, there was nothing wrong with the Gilardoni cylinder, to the point it is now used on the 592xp, so am sure there will be little better performance.

[Aled Hughes]

I thought the 268 was open port and 268 xp closed port and more powerful?

[Stubby]

1 hour ago, Aled Hughes said:

I thought the 268 was open port and 268 xp closed port and more powerful?

I think you are correct . I seem to remember the plain old 268 was called the special ?

[Aled Hughes]

1 minute ago, Stubby said:

I think you are correct . I seem to remember the plain old 268 was called the special ?

Been digging with chaps over the pond and have found 272xp was introduced instead of 268xp (Mahle cylinder closed transfers ) and the 268 open transfers(Gilardoni)was introduced to fill the gap.

[adw]

I do remember the Gilardoni cylinder but was sure it was closed transfer ports,it was a pro saw so it should not have been open, the 61 cylinder was always open. Must be having a senior moment about the 268 I guess.