Thread: Considering LPG on my 4.6 GEMS

Originally Posted by redandy3575

Looks Messy under the bonnet...

How does all the LPG components handle extreme off-road conditions i.e Mud, water during river crossings and severe dust??

No better or worse than the rest of the notoriously reliable P38 electronics. Most connectors have silicone dust seals as is normal automotive practice.

If you don't like messy underbonnets get one of them tojo things with an acoustic cover, hides all the things their owners don't want to see.

I can understand the lack of backfiring and the increased potential fuel economy on injection, but I have to admit after having the 3.9 classic and the 4.6 gems P38 put on LPG and after owning three other 3.5/3.9 rangies on LPG the only time they have ever front fired is realistically my own fault. Also the economy figures don't seem to be that much better than what I have found I get with single point.

I can put all my frontfires down to almost empty LPG tanks and me sinking the boot in from idle.

I even once had a huge one, which caused half of the LPG to flow out to the engine bay after blowing a grommit off the mixer, but the car still ran, slightly rough, on petrol even though I was unaware the air intake had come off also between the maf and the engine.

When I keep at least a fifth of a tank of LPG at all times I simply haven't had an issue, and believe me I often drive my poor cars as if I stole them.

On the bosch I am told its a different thing, but I wouldn't discount it on GEMS or the old 14CUX setups putting a single point injection system on. Just make sure the ring has a large enough diameter and you always have plenty of LPG in the tank, and as beeutey says the proper plugs etc.

Power wise on either of mine I can't tell the difference between petrol of LPG, except a slight lack when towing heavy loads up a gradient on LPG.

just my 5 cents