In previous threads I see it mentioned that the early models of the new English 97's with the three idle ports had some kind of issues with multiple carburetor installations. See http://www.jalopyjournal.com/forum/showthread.php?t=607910&highlight=ee1 I have a three 97 setup I plan to run progressive; one of the 97's is the EE-1-1 with the third squirter, if I use this carb as the primary will this "issue" affect me? The other two are plain EE-1's without the third idle port. I would like to know more about the particular issue in question. The carb on the left in the double pic is the EE-1-1 with the third squirter, and has the smaller air bleeds. The other pic shows the three ports.
As long as you have the correct body, it will have factory notches in the venturies to fit over the tubes..I realy like this base. It will work great as the primary..I believe that you will get a better idle.. Duane.
Note that aside from the notches the body that goes with this base has smaller idle bleeds, readily visible in your pics. I had never noticed this til Max pointed it out... I think the underlying issue is that carbs run on the idle/off idle circuits to a surprisingly high rpm level, going through a range in which flow through main delivery system metered by venturis and jets moves from zero to partial to full control of fuel. This is because the venturis cannot pull fuel well until air flow reaches a critical level, and of course in multi carb setups the flow is divided between more venturis and so is slower to build. I believe this was an attempt by Stromberg by sticking an off idle port out into the airstream to get fuel flow down there under more control by the amount of air going through. I have NO idea what the real world benefits and problems might be...I don't have very many of the late kind and have never messed with them.
Thanks for the replys Duane and Bruce. I am curious why with more ports for idle, why would the idle air bleed need to be smaller? My brain thinks that more ports would need more air; obviously there is more to it than that.
Mebbe trying for increased draw down at the outlets?? Did idle and conventional off-idle holes change with this version? I have no idea where my samples are to measure. Those circuits start out under manifold vac, that drops away as throttles open, protruding thing looks like it is meant to develop some draw from air p***ing over the slanted end...general idea must be to attempt to get better correspondence between air and fuel flows until the venturis go active ("excite"). By the way...all hands be sure to click on Bill's site. It is quite interesting.
Bruce you are correct about the draw down of the two br*** outlets. If you look close you'll also see the two holes for the air/fuel pluse the another two just above them, what I understand is they are the same size holes..Again, I realy like these bases. I have found the "V" or "Batwing" base is great on big CI engines. Hemis seem to run great with them.. Duane. ps, what I do is cut the tip off the idle jet on this base, just seems to flow better..
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