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Old 06-04-2010, 12:02 PM   #14 (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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I believe he was talking about a bypass valve to let air in after the throttle plate. This vaccum leak should stop air from traveling across the venturi & sucking fuel out the of the jets.

This could potentially cause a lean burning condition, which could be bad for your engine.

I think this can be done with a carb spacer & an electric/air solenoid. The inlet for the solenoid should be after the air filter & the exit should be plumbed into the carb spacer. When the solenoid is opened it shoul allow air to travel around the carb, which should allow for DFCO.

I read about it somewhere on the internet. Someone sells a kit/plans, cant remember, that hooks the solenoid up to all kinds of stuff including your brake light switch. All this is to automate the thing so your engine won't stall. I say just use a momentary switch & your noodle to control it.

Don
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