Emulsion tubes - how do they work/what do they do? Options

[Scott S]

The carbs for my 2.7 are the 40 IDTP 13C. I called PMO to get jet suggestions. While they were very specific on idles, main and a/c , I told them I already had F1 emulsions and they said "those will work". Thats fine - I trust them - and I plan on using them.
However, all of the charts and maunals I have been able to locate (including the webber book) list the F-26 or F-3.

I understand that a larger/smaller jet simply means getting more or less of what ever it is you are regulating. I dont quite get what the emusion tubes do and how. Can anyone throw me a laymans explanation?

Thanks!
Scott S

[brant]

Scott,

when you get this baby running... I can loan you a set of F3's to try out

but the above answer covers it
the emulsion tubes affect when and how the mid transitions occur
they can help elimnate stumble

you can also use air corrections to affect transition as well
its all a black art. The innovate helps. The weather matters
and the particular engine characteristics and compression play a roll also