This page is an attempt to provide an overview of LPG conversion kits that are available in the UK market place. It does not list them but rather discusses the technical merits of the different approaches of different manufacturers. I try to be unbiased and in that spirit will link to some of our competitors Devan Dubnyk Youth Jersey , something you’ll not normally find on the web!


We must have an idea of what we are looking for — a good kit is one that has all the components working in balance to produce the end effect of an efficiently fuelled vehicle with minimum change in performance to gether with improved emissions and no side effects.


The detail


The last ten years or so have seen some big changes in the UK LPG conversion industry. Single point (mixer) systems are now very rarely used and reserved for old pre multi-point petrol injection vehicles. With the influx of eastern european immigrants there has been a corresponding influx of LPG injection kits from those countries. The result is that where there was less than ten kits to choose from now the choice is probably in excess of 30. Good for the end user in that the competition forces the price down but not so good in that the individual installers who chase the cheapest kits do not build expertise in any particular kit.


Lets look at the kits, they all work! Front end kits can be categorized by: country of manufacture; vapour or liquid injection; electronic control unit; make of injectors; make of vapouriser; cost. The back-end is usually categorized by: 4 hole or single hole; cylinder or toroidal. Already we have a bewildering array of possibilities. For the purpose of this discussion I’ll forget about the back-end and concentrate on the front-end kits also because of their relative rarity at the moment I shall not include liquid injection kits Kyle Quincey Youth Jersey , therefore we will consider only sequential vapour injection LPG conversion kits.


If we categorize by country kits fall into one of three groups, Dutch Daniel Winnik Youth Jersey , Italian and others (mainly eastern european) and conventional wisdom would have it that the quality descends in the same order. I have no evidence that this myth is true but suspect it has grown out of clever marketing in the past by the Dutch manufacturers. When installed correctly on an average car the difference in performance between Prins, BRC & Stag for example is unmeasurerable. We should consider other ways to differentiate between LPG Conversion kits.


If we categorize by Electronic Control Units (ECU) again we end up with three groups. When all components are made in house (group A) it is a good assumption that everything is compatible and will behave accordingly.


When an injector manufacturer uses an bought in ECU (group B) you can assume that the firmware has been adequately adapted for those injectors and that once again everything is compatible.


In the case of Groups C & D the possible permutations of Injectors and vapourizers with the ECU must create doubts about compatibility issues. This is exasperated by this group tending to be the cheapest kits and hence the natural reaction of sourcing cheaper injectors in the mix and match. Because of the different combinations of components in use Matt Dumba Youth Jersey , suppliers in all honesty can not be expected to carry out the strict emission test that are a feature of the complete kit manufacturing procedure.