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Old 09-08-2012, 10:25 AM   #186 (permalink)
MechEngVT
Mechanical Engineer
 
Join Date: Jun 2008
Location: Richmond, VA
Posts: 190

The Truck - '02 Dodge Ram 1500 SLT Sport
90 day: 13.32 mpg (US)

The Van 2 - '06 Honda Odyssey EX
90 day: 20.56 mpg (US)

GoKart - '14 Hyundai Elantra GT base 6MT
90 day: 30.46 mpg (US)

Godzilla - '21 Ford F350 XL
90 day: 8.69 mpg (US)
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Don't most carbs have a fuel shutoff solenoid that physically impedes fuel delivery to the float bowl when its power is interrupted? Removing power from such a solenoid without killing spark would allow the engine to run on for no more than a second or so until the fuel level in the bowl(s) drops enough that it can no longer fire, and this will minimize or eliminate the quantity of unburned fuel sent into the exhaust.
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