LPG
conversion was made by Mr. Duboclard 63200 MALAUZAT. I had the choice between
a 26 gal. (US gal.) cylindrical tank placed in the bed and a 19 gal. toric
tank (doughnut shape) hidden under the bed. I choose the doughnut.Here
are the tank placed discreetly behind the driver seat and an inspection
door opened in the bed by Mr. Boche:
The engine 305ci has an anti-pollution carburetor computer controlled
(CCC). It
has an O2 sensor like fuel injected engines in Europe. This sensor indicates
to the Electronic Computer Unit the presence of oxygen remaining in exhaust
fumes. The ECU corrects the quantity of gasoline aspired by the carburetor
to optimise air-gasoline mixture. The LPG ECU uses this sensor to regulate
propane by operating a stepper motor.
here is the LPG system around the engine, the following pictures
give more details
A: vaporizer-regulator B: stepper motor
C: mixer mounted on the top of carburetor
C: bottom side of mixer
D: LPG ECU
Driving impressions are very good.
The V8 likes LPG: it runs smoother and quieter than on gasoline. It starts up on LPG without problem and is available practically
immediately without the warming-up period as on gasoline. I almost never drive on gasoline.
LPG mileage is 14mpg on road and 12mpg in city. Considering LPG price and fuel mileage down of 20%, the conversion should pay itself in 30000km.(18500miles)