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[FlyRotary] Re: Weber Mixture
control
There is also a system used on
snowmobiles that uses air bleed from the intake manifold that adjusts
the mixture but I have not looked at it close vet but I have thought
about playing with it.
There are two types, one is an after
market kit called Dial-a-jet and the other is a factory setup that is
automatically controlled by a computer.
I have never heard of anyone making
anything for a Weber however.
Also I will note that a Weber differs
from a crude aircraft carb or a Holly in that its very sensitive to
air velocity and pressure, less air going through the Venturi will
give you less gas so it compensates for alt to some degree compared to
them crude carbs.
Ken
Hi, Ken thanks for the information. I did
save a similar message that you previously sent describing how you
used ram air to control the mixture on your Weber. If required, I
could probably construct a similar system (If I pestered you with a
few more questions). I was just hoping there was a simple solution,
such as someone who came up with a mechanical lever type mixture
modification for the Weber. I could easily weld or machine a slot in
the mixture adjustment screw and attach a cable, but I suspect that
the mixture screw would need to be turned in or out several turns,
which a simple lever attached to the mixture screw would not
accomplish. It might possibly turn the mixture screw 1/2 to 3/4 turn
at max, which I suspect would not be sufficient enough to lean the
carb enough for higher altitude. Thanks again for your input. I have
also saved this posting just in case. sincerely, Paul
Conner
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