Contemplating removing gas or running on straight gas?? Which one??

**RRV80** · 24th November 2006, 09:12 PM

I'm contemplating removing the gas sytem in my rangie 3.5carb is search of a boot and quite frankly, i havt really been a fan of gas, even though i havnt had a lot to do with it, but the system on mine, being carby, can be quite difficult to switch back from gas to petrol, often die'ing and it take ages to get it going again. Also being duel fuel it doesnt run real well on either as compensating for both in fuel and ignition 'maps' (for lack of better words) there is compromises to be made. It doesnt go as good, go as far, or sound as good on gas either - maybe the sound is just me

So i'd get my boot, remove all the kinda dodgy wired electrical side of the gas sytem and get rid of all the clutter associated with gas.

The other option is to convert to straight gas, get and under-floor tank or something in place of the fuel tank, i hear that you can make them go much better this way as you only have to tune it for one fuel, as for the distance, will i be saving any money as compared to petrol as it uses more in gas?
The only other problem, even tho i dont intend to run out of fuel, its not like you can go to the servo and get a jerry can of LPG

Also going this way is going to cost me more money anyway to set it up, wheras if i remove it, i wouldnt have to pay to set it up, and could possibly sell the old system.

Also she starts beut on petrol and runs great, i hear that there can be many problems associated with gas and cold starting?

What do people think would be the better option.

**Michael2** · 24th November 2006, 09:27 PM

Petrol.

Otherwise you are very very very limited in range and have to fill at every opportunity on a trip, in case LPG is not available at the next one.

lokka · 24th November 2006, 09:34 PM

go gas straight gas set u rite will out perform pety and get reasonable econ and u can fill a car tank with a normal say 9 kg gas botle all u neeed is a adaptor hose to fit between the bottle and the tank filler all u have to do then is hold the bottle upside down above the hight of the in car tank and open valve and the liquid will flow into the tank .

cheers

chris

crossy · 24th November 2006, 09:44 PM

Keep both, get a decent ecu for running duel spark tables, shave the bejesus off the heads. Youll only be able to run premium and lpg but you wont suffer any power loss. (wont be cheap though). Fit an electric fuel pump to overcome the dead spot when changing from gas to petrol.

**p38arover** · 24th November 2006, 09:47 PM

Advancing the ignition for LPG isn't a problem. I happen to have a device for that. I bought it for my previous RR and never used it. It was then gunna go on the County but i sold the County.

If you solved the problem of changing back to petrol, you may change your mind. Mount your tank along the axis of the vehicle rather than across it and you'll get your boot back. This will limit the tank size b ut it's worth it. This is how my classic was done. As you can see, the tank is on the RHS and taking up very little space :

Ron

**tony** · 24th November 2006, 09:54 PM

Stick with the duel fuel I ran it for years on a carby 3.9 never noticed a loss in power from one to the other the only niggle was switching from gas to petrol have to wait for the pump to get fuel into the carby bowls but even that was'nt a real problem just get someone to set it right who knows what there talking about
and as to the space problem I had a 115 litter tank behind the rear seat built a shelf over the top of the tank ,barrier on that plenty of room, then when the kids stoped comeing out with us ( got his own rangie) took out the rear seat moved the tank forward more room than I know what to do with.
You can make it work really well had just over a 1000 K range with the gas an long range tank bloody great

T

**RRV80** · 24th November 2006, 09:57 PM

I have a electric fuel pump as my RR is fitted with power steer, my gas tank is mounted that way in the back, but my tank is ALOT bigger than that, it is out further to clear the wheel well, the ignition is advanced its about 10 from memory,

So now that i clarify that is how its done on my car, now what do people suggest? its auto too, so i cant use the engine brakeing to keep it running under load while switching over.

crossy · 24th November 2006, 10:02 PM

Originally Posted by RRV80

I have a electric fuel pump as my RR is fitted with power steer, my gas tank is mounted that way in the back, but my tank is ALOT bigger than that, it is out further to clear the wheel well, the ignition is advanced its about 10 from memory,

So now that i clarify that is how its done on my car, now what do people suggest? its auto too, so i cant use the engine brakeing to keep it running under load while switching over.

fit efi.

jasper110 · 24th November 2006, 11:32 PM

Originally Posted by RRV80

Also she starts beut on petrol and runs great, i hear that there can be many problems associated with gas and cold starting?.

i have a carb 1985 3.5 in my 110 and it starts easily on gas in the cold.even below -10 C although its not often that cold!!!

i also have a dual timing device that allows you to set the timing for gas and retards it automatically when you switch to petrol.

**TJS-70Y** · 25th November 2006, 08:08 AM

I would get rid of the gas. I have just removed the gas from my 76 2 door as they wanted $900 to do the 10 year inspection on the tank. Since i got rid of it and tuned the computer (aftermarket EFI) which is about 2 weeks ago it starts better, runs better and i have got rid of my charging problem. I had a 140 litre tank that sat right up against the tailgate so i have got my load area back too.

Thomas

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