Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
Earlier type gas systems put a venturi (a restriction) in the inlet air flow to draw gas in. Any restriction to air flow reduces power. Later LPG vapour injection systems do not need the venturi so there is no power loss on petrol and very minimal power loss on gas. The latest LPG liquid phase injection systems actually have slightly more power on gas than petrol due to the intercooling effect of the liquid gas evaporating (latent heat of evaporation) in the intake ports.
Reply With Quote