weber designations
 

Hi,
Was wondering if anyone knows what the letter designation on weber carbs stand for if anything.
For instance "IDA", or "DVG", etc.
I have the haynes weber book and can look at the various carbs, but was wondering what the letter stand for?
Thanks.
Houston in Lousisiana

To quote from HPBooks "Weber Carburetors" by Pat Braden:

The prefix always indicates the size of the throttle plate i.e. 40 DCOE is a 40mm throttle plate. The letters immediately following the prefix refer, in Italian, to the general type of carb. Only a few terms are consistent: "DC" means doppio corpo, or double-throat. "V" means verticale (vertical) and "O" means orizzontale (horizontal). The "I" in IDA seems to mean invertito, or inverted. Yet, there are no updraft, or inverted, Webers; the IDA is a downdraft.

Other even less-consistent single-letter designations are:

· E: Die cast carb
· F: Ford (of Europe) or Ferrari (?) application
· V: Carb with power valve
· A: Water-operated automatic choke
· G: Progressive rate

Weber carb nomenclature is chaotic. The IDA may be 2-3 throats, and there is no choke at all. The "E" in DCOE indicates either a trapezoid bolt pattern (in some applications), or a rectangular pattern. The DCN fitted to the Lamborghini was a DCNL, but if fitted to a Ferrari, became a DCNF!

Any questions?

so what will the description of my 40idx or idf?

[This message has been edited by stelan (edited 01-15-2000).]

A 40 IDF is just what it's called, a 40 IDF.

Sometimes, a cigar is just that; a cigar.