Ritch
July 11th, 2013, 09:11 AM
Hi there! I suspect this is a rare install.
With the cost of gasoline being twice of propane and the fact that old style LPG conversion kits are almost free used, I decided to try a conversion on my Yukon. It is a 2001 6.0L with 327000 km. Ha ha, now for the good part.
I have welded a plate to the end of an aluminum cold air intake tube and mounted an Impco425 mixer on it. I used a 10" round aircleaner from a 1988 throttle-body injected van and it all fit where the factory MAF and air cleaner used to be! Hopefully, I can still use the gasoline system to start the engine and then after it is running the propne vapor will be drawn through the tube. This saves some work as far as trying to get propane to the cylinders before start-up goes. The lock-off valve I am using is vaccuum operated, so that LPG only flows when there is engine vaccuum.
Any sugestions on how to turn off the injectors when the engine is running will be greatly appreciated. Also, I will not be using the MAF. I will need to use a IAT sensor at the air cleaner. Open loop tuned of course, and then the timing can be adjusted for the new fuel.
Ideas? Hints? Tips?
With the cost of gasoline being twice of propane and the fact that old style LPG conversion kits are almost free used, I decided to try a conversion on my Yukon. It is a 2001 6.0L with 327000 km. Ha ha, now for the good part.
I have welded a plate to the end of an aluminum cold air intake tube and mounted an Impco425 mixer on it. I used a 10" round aircleaner from a 1988 throttle-body injected van and it all fit where the factory MAF and air cleaner used to be! Hopefully, I can still use the gasoline system to start the engine and then after it is running the propne vapor will be drawn through the tube. This saves some work as far as trying to get propane to the cylinders before start-up goes. The lock-off valve I am using is vaccuum operated, so that LPG only flows when there is engine vaccuum.
Any sugestions on how to turn off the injectors when the engine is running will be greatly appreciated. Also, I will not be using the MAF. I will need to use a IAT sensor at the air cleaner. Open loop tuned of course, and then the timing can be adjusted for the new fuel.
Ideas? Hints? Tips?