I think the carbs you're talking about are the 40 DCO 3 type. I am running
them on a Formula Junior. Trust me, the DCOE is a MUCH better carb. The
story I heard was that representatives of Alfa Romeo went to Weber in the
late 50's and effectively said, "The DCO 3 carburetors are crap. Build us
a better carb, or we are taking our busines elsewhere!" The point being
that the sand cast carbs were not very good. The DCOE was not sand cast.
The DCO 3 carbs suffer from a poorly designed emulsion tube, porous
castings, and a near total lack of parts on the market. The only part on
them that is the same as the DCOE is the main jet itself. The other jets,
the emulsion tubes and all the other parts are completely different.
I don't have any real leads on a set of DCO 3s, but a pair of them would
have been the usual fitment on an Alfa Romeo 750 series Veloce. You might
check with Alfa sources.
Brett Johnson wrote:
>
> All,
>
> I'm looking for a pair of early (circa 1957) sand-cast Weber 40 DCOE
> carbs for a Lotus Eleven (#275) that was originally so equipped. Any
> out there?
>
> Brett Johnson
|