LPG injection systems - Looks interesting!

[pundit]

As I'm spending $5k AUD ($4k USD) per year (at current prices) on fuel, I'm beginning to seriously consider switching over to LPG (Liquified Petroleum Gas). Of course the catch is while LPG is around one third of the cost of petrol (gasoline for our Yankee friends ) it generally comes with around a 10-20% power loss and a 15-30% decrease in fuel efficiency (MPG). However although LPG has a slightly lower heat value than petrol, LPG is a very high octane fuel and can take advantage of both high compression ratios (12:1 or higher) and/or increased ignition timing advance.

Traditional 'old' technology LPG systems have often literally dumped gas into the inlet manifold in a not very well metered fashion with manifold backfires being a common and often damaging consequence. Newer LPG injection systems are now appearing on the market (SGI Sequential Gas Injection) utilising special injectors designed for LPG. While most of these systems require custom fuel delivery electronics a new system (GTI Stealth) is able to be adapted to utilise the vehicles factory ECU and engine managment system to directly control the LPG injectors. To me, this looks interesting as it allows the existing vehicle electronics to be maintained and as the LPG delivery is better managed it offers improvements in both power and economy over conventional LPG systems.

Has anyone here had any experience with LPG injection systems?

Hmmm... how about a Megasquirted, turboed LPG install!?