dlk
Member
- Joined
- July 22, 2007
- Messages
- 27
- Reaction score
- 0
- City, State
- Aberdeen SD
- Year, Model & Trim Level
- 94 xlt
This week I put a T in my 3/8" ID propane line and added a second 1/4" hose running into the airbox. This was the cheapest and easiest way to increase the amount of propane running into my engine. I'm weighing the cylinder before and after to determine how many lbs of propane I'm using.
One tube delivers a gallon(5 lbs) of propane about every 125 miles at 60mph, two tubes delivered a gallon every 85 miles. Unfortunately, I only got 17 mpg in those 85 miles That's exactly what I would expect to get without the boost. I think I've exceeded the amount my fuel injection will compensate for. I believe the computer realized something was wrong, and reverted to open loop operation. Needless to say, I'm going back to one tube.
The jury's still deliberating, but this experiment is starting to look like it isn't really worth it. I can only substitute 1 gallon of propane every 4 or 5 gallons of gasoline used, and unless I can figure out a way to get the bulk price on propane, it'll be more expensive than running on gasoline alone.
One tube delivers a gallon(5 lbs) of propane about every 125 miles at 60mph, two tubes delivered a gallon every 85 miles. Unfortunately, I only got 17 mpg in those 85 miles That's exactly what I would expect to get without the boost. I think I've exceeded the amount my fuel injection will compensate for. I believe the computer realized something was wrong, and reverted to open loop operation. Needless to say, I'm going back to one tube.
The jury's still deliberating, but this experiment is starting to look like it isn't really worth it. I can only substitute 1 gallon of propane every 4 or 5 gallons of gasoline used, and unless I can figure out a way to get the bulk price on propane, it'll be more expensive than running on gasoline alone.