Selection and Tuning of Weber DCOE Carburetors

[dakazman]

   Found this article on the web, and new to this type carb I thought it was a good learning tool.
This is a quote
“  What venturi size will a 1600 cc Ford crossflow engine require if its maximum power is delivered at 6500 rpm?

Using Figure a 1600 cc Ford crossflow engine giving its maximum power at 6500 rpm will require a venturi size of 31 mm. However, since come in even numbered sizes, then either 30 mm or 32 mm venturi would be chosen. From this choice an ideal barrel size of 37.5 – 40 mm (i.e., 30 x 1.25 and 32 x 1.25) would be calculated and hence 40 DCOE is the ideal solution, even though 30 mm and 32 mm venturis are available for 45 DCOE.”

Selection and Tuning of Weber DCOE Carburetors:

   https://cnx.org/contents/oKbaEWQ3@2/Selection-and-Tuning-of-Weber-DCOE-Carburetors

Dakazman

[jbcollier]

Pretty basic.  I recommend reading "How To Build & Power Tune Weber & Dellorto DCOE, DCO/SP & DHLA Carburettors" by Des Hammill.  Amazon carries it.  Goes into great detail, especially on emulsion tubes which are the real "black heart" of a carb.  That and an A/FR gauge and you're set.

[SwiftDB4]

It's online here:
https://240260280.com/Tech/Carbs/Weber/docs/Hammil/Power%20Tuning%20Webers%20V1%20(text%20search).pdf
Very good tuning guide.

[dakazman]

  Thanks SwiftDB4,
  Good find🙌👍👍
  Chapter 5 answered a question I had all ready. About the correct type gasket between the manifold and carb . Chapter 6 should also help immensely with the setup.

Dakazman