Sequential Gas Injection

Multipoint Sequential Gas Injection Systems (SGIS) are the most appropriate type of LPG conversion for vehicles built after 1999. Any vehicle with a plastic inlet manifold should have this type of conversion. Kit costs have reduced and set-up of the systems is now considerably easier. The sequential system injects LPG as a vapour for each cylinder, very close to the inlet valves.
The system offers slightly improved economy and performance (when compared with induction systems) and eliminates the possibility of spit-back.

Induction Systems

This type of system is the simplest type of LPG conversion carried out. Suitable for all types of vehicle built before 1999 (except those with a plastic inlet manifold), the system introduces gas to the engine in a vapour form through the inlet manifold. Older, carburettor vehicles and early, injection models use the LPG reducer to control the inlet of fuel into the engine. Later vehicles use a slightly more sophisticated management system that reads the oxygen sensor in the exhaust. This then controls fuel levels using a stepper motor, which gives the most efficient fuelling at all times.

 

Leonardo Management System	Bigas Reducer
Changeover switch/Fuel Gauge	Bayonet Filler

Small Engine Conversion

We have a range of equipment for converting small, single and multi-cylinder engines such as those fitted to quad bikes, generators, lawn-care equipment, golf buggies etc. These vehicles can be run either direct from propane cylinders or specialised gas tanks. Duty-free gas gives even larger savings for these non road-going machines.

Diesel LPG Conversions

Diesel engines can be converted to run partly on LPG, partly on diesel. This method uses the combustion of the diesel to ignite the LPG. The benefits include large increases in power and reduction in emissions, particularly the black smoke often associated with diesels.
Typically a ratio of 30% LPG to 70% diesel is possible. No adjustments are required to the diesel injection system and fuel savings come from the fact that throttle openings are lower due to the greatly increased power, which basically means you do not have to press the accelerator as hard to get the same performance.
Fuel savings upwards of 30% are possible with the increased power levels seen as a major benefit to users.

For more information on the conversion of diesel engines click here.