How hard is it to install LPG

[Alex]

Been doing a bit of research into LPG

How hard is it to install a single point lpg system where by it feeds the lpg into the intake ???

Is it a case of fitting one of these

http://www.ebay.co.uk/itm/330566379168? ... 1423.l2648

Then tank, mixer and evaporator and afm thingy??

if my car allready has a lambda sensor can you tap into that for a feed ?

What sort of pipework do you use to go from rear of the car to the front ??

[Brianmoooore]

Brian Moore's the man to answer your question, hopefully he'll be along soon.

Evening!
Pipe from the tank to the front is 6mm plastic covered copper pipe, or there is a special plastic pipe that can be used. Plastic pipe is easier to thread through, but needs more fixing points.
I'm unfamiliar with the exact system in your link, but it's probably a clone or a derivative of the long established AEB Leonardo system, and will tee into or connect instead of the existing signal wire from your lambda sensor. If it connects 'instead of', the gas ECU will produce a one volt square wave to connect to the petrol ECU to 'keep it happy' and stop it throwing a fault light or going into a 'limp mode' if it gets suspicious. E30 petrol ECUs are fairly dim, so none of this is applicable to them, and injector emulators aren't required either, for the same reason.
Tank and filler at the back, pipe and solenoid valve/level sensor wiring to the front, filter/solenoid valve on the LH suspension turret, vaporiser mounted in the space behind the turret, just above the chassis rail, and plumbed into the heater hoses just above, a mixer plate mounted inside the top of the air filter box, the whole filter box moved forwards an inch, and a 'cat flap' backfire protector clamped to the outlet of the AFM, plus fitting the bits in the ebay link, and the jobs done. Look forward to saving a minimum of 40% of your fuel costs, and doubling the remaining life of your engine.
You should search for COP 11 on line, which is the regulations for fitting LPG systems to UK road vehicles. It's mostly common sense, but there are a few details you need to know to produce a 'legal' install.