If you really want to set it up properly, get an O2 sensor and fit it in the exhaust. The O2 sensor will put out between 0 and 1 volt depending on whether it is running rich or lean. You then simply need a multimeter to read the voltage. To fit to the exhaust you find a nut that fits the O2 sensor thread, drill a hole in the exhaust near to the engine, and weld the nut over the hole and fit the O2 sensor. If it is running lean you will find that it will not rev out and basically go worse when you try to accelerate. If it is running rich you will find that you have no power. With LPG power and economy go together. LPG hates running rich. I use to pay a LPG specialist to put my Rangie on a Dyno each year to tune it. I wanted to play around the airflow a bit and they stopped doing the Dyno tuning on a Saturday (I could not get there during the week), so I purchased an accurate wideband O2 gauge. I found that the people tuning it on the Dyno had never bothered to set it up properly. By tuning it myself with the help )2 gauge, I increased my range out of a tank of LPG by 30% and obtained a very noticeable power increase at the same time.
I have recently had LPG fitted to another Rangie and Discovery. We have to have them fitted by LPG specialists by Law. Both times they were presented to me tuned very badly. They get away with this by people expecting a drop in power and economy from LPG and not querying the poor tunes.
So my advice is get your own gauge and tune it yourself. The gauge will pay for itself from better fuel economy and the smile you will get from the extra power.
By your photos, dump the system you have. The ring type mixer you have is not very efficient and upsets petrol running.
The large adjuster in the hose going to your mixer is the power adjustment. This sets the mixture above idle. Screw it in to lean the car off and out to get it to run richer. The adjuster on your convertor (vaporiser) that looks like it is a copper colour in your photos is the idle adjustment. The best way to set your idle (if you don't have a O2 gauge) is using a vacuum gauge fitted to your intake manifold.
Around town of LPG I get around 22 to 23 litres per 100 Kms. On a trip I would get better than 20 litres per 100kms
I have recently had LPG fitted to another Rangie and Discovery. We have to have them fitted by LPG specialists by Law. Both times they were presented to me tuned very badly. They get away with this by people expecting a drop in power and economy from LPG and not querying the poor tunes.
So my advice is get your own gauge and tune it yourself. The gauge will pay for itself from better fuel economy and the smile you will get from the extra power.
By your photos, dump the system you have. The ring type mixer you have is not very efficient and upsets petrol running.
The large adjuster in the hose going to your mixer is the power adjustment. This sets the mixture above idle. Screw it in to lean the car off and out to get it to run richer. The adjuster on your convertor (vaporiser) that looks like it is a copper colour in your photos is the idle adjustment. The best way to set your idle (if you don't have a O2 gauge) is using a vacuum gauge fitted to your intake manifold.
Around town of LPG I get around 22 to 23 litres per 100 Kms. On a trip I would get better than 20 litres per 100kms
