From the look's of it in Israel at the moment oil will be so expensive more people will be converting to lpg as most of it comes from Bass strait or the Roma gas fields. I rang that bloke 6 months ago which is where I got my info from. I guess it is time I rang him again. That system all you do is change the tank and the injectors I think from memory. You use the original fuel rails and computer. Also try this www.prins-lpg.com/ and click on the british flag.

If i ever go lpg id go dedicated get rid of the petrol all togeather,
as when u have both it has to settings so you cant really get it tuned right
if its dedicated you can tune it strictly for gas and should run better than petrol as it has a higher octane

I'm not certain on this but I understand that was more to do with the older style gas setups on carby cars... AFAIK the new systems, including the injected setup, are fairly independent of the petrol system so theres no real compromise - thats how it was explained to me anyway, they said except for the possible space saving, theres no real benefit in getting rid of petrol... unless you rebuild the engine with a super high comp ratio to make use of that higher octane, then dedicated gas might be the way to go...

Geoff

Spark maps are quite different for LPG, so if you're able to seperately control spark for LPG and Petrol, you're on a winner.

Naturally fuel delivery is a totally seperate thing, as your ECU's injector outputs can't be used to drive the LPG.