thanks for the feedback guys. i did calculate that after roughly 2 years the money ive saved on fuel will have paid off a vapour injected system and a liquid injected system would take about 4 years. the car only has 112,000km on it so im looking to keep it for a few years still. i have considered selling it, but i do enjoy the car and it suits me well with getting around, being a people mover and having a bit of fun in as well.
the car is a 2004 BA XR8 sedan for those asking. right now the fuel economy isnt the best where its sitting roughly on 15.7km per 100km, but thats the computers calculation. some weeks ill get 400km, other weeks ill get 350km. the tank is only 65L as well which i think is small for a V8.
the main concern i have is that there are people who have raised a lot of issues with the injected liquid lpg systems which is what im mainly trying to suss out here. Ive heard that there can be issues starting the car due to the psi changing while the car is off and the liquified gas vapourizes out of the lines or something. there are several other issues pointed out, but these were from mechanics who dont sell the systems so theres always the chance they were just crapping on about them so id buy one of their systems instead like sales people usually do.
the place im looking at getting the conversion done at is smithy's in bayswater. ive heard good things about them and the guy i spoke to on the phone knows his stuff and spent 20mins explaining the differences between all types of lpg systems. seeing my car is a BA series then i know its a lot easier and common for these conversions to be done. the guy did say hes done conversions on land cruisers, FPV's, big block chevy's, etc.
any more feedback from anyone who has used or knows someone with a liquid lpg conversion would be great.