Thread: allisport vnt fitted

[FONT=""][COLOR=""][SIZE=""]Hi there Rexy Boy. Thanks for the post. I'm very interested in a VNT and gas combination for touring. I have a 98 tdi and have tested the fuel economy for over fifteen months with a fuel app on my mobile phone. I averaged 8.3 litres per one hundred kilometres .I have standard tyres no lift and no roof racks and a stock standard motor and turbo with 235000 on the clock. Some times the economy blows out to 9.3 litres per one hundred kilometres ( still pretty good eh ? ) but I think that is down to dodgie meters on the pumps at the petrol stations ( in their favor of course ). About a year ago I met a nice old gentleman in the car park at the local super market. He was driving a tdi Disco on gas. I engaged him in a conversion about Lande Rovers in general , and he told me that he had recently toured around Australia and averaged 6 point something per one hundred kilometres. He said he was traveling with friends that had Land Cruisers and Nissan Patrols . He told me that they used over double the amount of fuel that he did ( no surprises there ) but he also said he didn't have any punctres or trouble with his Disco . That was surely down good maintenance and driving style. He was a pretty smart bloke. Anyway I was pretty impressed with what he had to say. So lets break it down. With a gas and diesel system, the engine runs cooler, cleaner and the EGTS are lower witch also means longer engine life. A two tonne four wheel drive that has better fuel economy than most small four cylinder buzz box cars ! You only need a small gas tank with a gas on demand system.
That's good enough for me !
I'm not sure what you meant by "80 kph up hill with gas on now 100 kph with gas off " though .
Please keep us up dated on your results .[/SIZE][/COLOR][/FONT]

6 pony something l/100km ?

Must never go over 80km/h.

No, I take that back, he's never exceeded 70km/h !

Sceptical ?
Yep.

Originally Posted by rick130

6 pony something l/100km ?

Must never go over 80km/h.

No, I take that back, he's never exceeded 70km/h !

Sceptical ?
Yep.

X2 Yep areodynamics of a block of flats

[FONT=""][COLOR=""][SIZE=""]As matter of fact rick, I do recall him saying that on the out back roads he sat on 90kph. Probably the optimum speed for fuel efficiency considering engine rpm and wind resistance. Your logic flawed however. Dropping your cruising speed to 80 kph and especially
70kph won't return better fuel economy. The six point something figure he quoted was his best result. Call it 6.9 l/100 if you like. Its still an excellent result. Bear in mind that he was running a diesel / gas system and he was telling me how much diesel he used per 100 km. I don't know how much gas he used to get this efficiency , but there is a limit to the amount
of gas you can use in the ratio anyway . The point was to show what is possible .
anyway .[/SIZE][/COLOR][/FONT]

Originally Posted by disco 300

[FONT=""][COLOR=""][SIZE=""]Hi there Rexy Boy. Thanks for the post. I'm very interested in a VNT and gas combination for touring. I have a 98 tdi and have tested the fuel economy for over fifteen months with a fuel app on my mobile phone. I averaged 8.3 litres per one hundred kilometres .I have standard tyres no lift and no roof racks and a stock standard motor and turbo with 235000 on the clock. Some times the economy blows out to 9.3 litres per one hundred kilometres ( still pretty good eh ? ) but I think that is down to dodgie meters on the pumps at the petrol stations ( in their favor of course ). About a year ago I met a nice old gentleman in the car park at the local super market. He was driving a tdi Disco on gas. I engaged him in a conversion about Lande Rovers in general , and he told me that he had recently toured around Australia and averaged 6 point something per one hundred kilometres. He said he was traveling with friends that had Land Cruisers and Nissan Patrols . He told me that they used over double the amount of fuel that he did ( no surprises there ) but he also said he didn't have any punctres or trouble with his Disco . That was surely down good maintenance and driving style. He was a pretty smart bloke. Anyway I was pretty impressed with what he had to say. So lets break it down. With a gas and diesel system, the engine runs cooler, cleaner and the EGTS are lower witch also means longer engine life. A two tonne four wheel drive that has better fuel economy than most small four cylinder buzz box cars ! You only need a small gas tank with a gas on demand system.
That's good enough for me !
I'm not sure what you meant by "80 kph up hill with gas on now 100 kph with gas off " though .
Please keep us up dated on your results .[/SIZE][/COLOR][/FONT]

Hi Disco 300,
Sorry for the confusion, on a hill near my home that i drive reguarly pre vnt but with lpg on 4th gear full throttle speed would drop from100 kph at the bottom to around 80 kph at the top,tried this hill after fitting vnt with lpg off
held almost 100 kph all the way to the top,didn't try with vnt and lpg but i think it would accelerate up the same hill.I fitted dgas 7 years ago mainly for power,fuel consumption if you are interested average without dgas approx 10.5 l/100km with dgas best 8.5l/100km+2.7l/100km lpg hope this is helpful
cheers

[FONT=""][COLOR=""][SIZE=""]Thanks for your reply Rexy Boy. That's very interesting. Long hills are a great way to gauge your engine's power. I'll try to track down the bloke I meet in the shopping center car park and ask him again about the diesel / gas system he had to make sure what I recalled about our conversion was correct. I'm pretty sure it was, but I'll check. If it's not too much trouble, could you please tell me what size tyres you are running, whether or not you have a roof rack or anything else that might effect fuel economy. I'm slowly building my Disco on a budget but would ultimately like to have a diesel / gas system, 30 or 31 inch tyres and a roorack for carrying light camping gear.Loc[/SIZE][/COLOR][/FONT]

[FONT=""][COLOR=""][SIZE=""]Thanks for your reply Rexy Boy. That's very interesting. Long hills are a great way to gauge your engine's power. I'll try to track down the bloke I meet in the shopping center car park and ask him again about the diesel / gas system he had to make sure what I recalled about our conversion was correct. I'm pretty sure it was, but I'll check. If it's not too much trouble, could you please tell me what size tyres you are running, whether or not you have a roof rack or anything else that might effect fuel economy. I'm slowly building my Disco on a budget but would ultimately like to have a diesel / gas system, 30 or 31 inch tyres and a roof rack for carrying light camping gear.Currently my Disco is stock standard but getting great fuel economy and am interested to learn what changes will affect fuel economy the most .[/SIZE][/COLOR][/FONT]

[FONT=""][COLOR=""][SIZE=""]Sorry about that . I'm using my phone to post and accidentally hit "submit before I was finished .[/SIZE][/COLOR][/FONT]