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Old 03-08-2011, 12:09 PM   #2 (permalink)
DonR
Master EcoModder
 
Join Date: Mar 2009
Location: Northeast Ohio
Posts: 269

The Wife's Hot Rod - '09 Pontiac G8 GT
Last 3: 23.22 mpg (US)

Big Outback - '13 Subaru Outback 2.5i

Little Outback - '02 Subaru Impreza Outback Sport
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The vaccum operated systems on most carburated engines was designed to keep the intake air at a constant temperature. This way the air had some consistancies flowing throught he carb.

A servo/stepper motor should control the mixing valve easily enough. Even though I have no idea how to set up a controller

One thing everyone who uses a WAI says is that power is reduced. If you tie into the throttle position sensor you could have the valve go full cold at a designated position. This would provide a few more ponies (close to stock) when absolutely needed.

Don
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