Subject: Inject or not to inject
From: Rotary Engine
Date: 2/18/2006, 7:44 PM
To: AA-me


Paul

I see a lot of manifolds online that will fit the 13b that are for carburetor use.
 Is it a good or bad idea to use say an ellison TB or (Marvell Shebler?) carb?
My thinking is less fuel preassure less plumbing everything seems easier from
what I understand the fuel burn difference is only .5 in favor of F/I. I really
think I could've had my motor running months ago if I didn't have to fight with
the F/I manifold and fuel rails and injectors. Lets say I where to go that rout
would I not simply need a good ignition system and a redrive? what about boiling
the fuel in the bowl or do aircraft style carbs not work that way?

Tony

There is a lot to be said for using an aircraft carb that can be leaned
at altitude on a rotary. You have mentioned several of those factors.
We were having lunch up in Bishop with the bunch that showed up
to help Dave get the wings off. One person asked me what was the
most reliable rotary system one could install. I said an aircraft carb
and a couple of magnetos :)
 Paul Lamar


RE> Ken Welter has been flying Weber carbs for years.

RE> Hans



Hello Rotary,
I would like to try two Revmaster carbs. They have nice slids in them
and come in different sizes. They can be leaned out and are simple.
The cost per carb is $320 US each which I thought was quite good. The
Jabiru 3300 engine gets 250 more rpm at the top end with one. This
is with the same prop which means they it is getting more air and more
fuel.
Don Dunbar



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