----- Original Message -----
Sent: Sunday, February 27, 2005 10:30
PM
Subject: [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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