Boring '6/Rallye MPG question

[Dum-Dum]

But then, your looking at a grand for the bodies and mapping, at least. And a grand for the LPG kit at least.

Nope if you have a decent mapable LPG kit then you only have to pay for bodies which is from about £400.

I was looking at the multi point kit for it to be honest, I mean whats so bad about these kits anyway? It must be ok if they give a 2 year warranty surely?

They give it a warranty but it'll be down on power and not give great economy (especially on a spi system). You gotta bear in mind that most people who have the kits fitted are boring old farts who drive rovers and never go past 3000rpm

The big problem is to run the LPG most systems they read the petrol injection system as to what it thinks it should inject and then just adds about 10% on the end of where the petrol injection would be. However they do nothing to adjust the ignition timing and LPG likes more advance. Its also alot more variable in the amount of fuel it would actually like to inject at a given temperature. Problems caused by this are compounded by the fact that it likes to burn hot anyway.