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The mkiv Supra Owners Club

LPG conversions


Noz

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anyone had any experience with this? looking to get my focus done in the new year. was looking at biofuel, but its just to time consuming learning how to do the process properly, i struggle with time at the moment and have one or two mini supra projects i want to start so think its is the best route to fight the rising fuel prices.

 

would be on my turbo diesel. i heard it cost around £1k, prices may be different now though.

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I found a huge amount of information, just wondering if anyone had any experiences on here. Would of been nice to get some of your guys opinions on any of your vehicles you'd had done. Not every experience is logged on google ;)

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My brother had LPG on his N/A Aristo. It was one of the early single point jobs and tbh it was a bit crap. When the fuel got low it would lose power markedly, economy wasnt that great.

 

If you want to beat the fuel prices, sell the focus, take the cash you were gonna put into an LPG conversion and get a Lupo or Arosa. Cheap tax, epic MPGz and low insurance.

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I don't want to LPG my supra. I wanted to know who had done any conversions on any of their cars, thus the off topic location. I will PM havard and ask how his experience was getting it installed.

 

Regardles, a search would still have thrown up results.

 

My brother had LPG on his N/A Aristo. It was one of the early single point jobs and tbh it was a bit crap. When the fuel got low it would lose power markedly, economy wasnt that great.

 

If you want to beat the fuel prices, sell the focus, take the cash you were gonna put into an LPG conversion and get a Lupo or Arosa. Cheap tax, epic MPGz and low insurance.

 

Yep. The price of LPG is going to keep rising as demand drops. High efficiency diesel motoring is a much better bet - or in some cases petorl motoring.

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I have LPGed my 4.7ltr Jeep. No difference in mpg or power, lots of difference in price.

 

Thing is...you said you were looking at doing it on your turbo DIESEL.

 

I dont think you can do it to diesels. (I have heard of it being used as a performance additive to racing deisel trucks but not an alternative fuel.)

 

Be happy to be proved wrong, every day being a school day and all that.

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I have LPGed my 4.7ltr Jeep. No difference in mpg or power, lots of difference in price.

 

Thing is...you said you were looking at doing it on your turbo DIESEL.

 

I dont think you can do it to diesels. (I have heard of it being used as a performance additive to racing deisel trucks but not an alternative fuel.)

 

Be happy to be proved wrong, every day being a school day and all that.

 

Can't do it - too much compression and no spark.

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Yep. The price of LPG is going to keep rising as demand drops. High efficiency diesel motoring is a much better bet - or in some cases petorl motoring.

 

You are joking dude !!!! LPG is a by product from petrol production, the cost is all duty !!!! My 4.4 Range Rover is cheaper to run than our transit connect !!! (diesel)

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Thing is...you said you were looking at doing it on your turbo DIESEL.

 

I dont think you can do it to diesels.

 

Correct you can't convert a diesel to LPG (well technically you can, but not without great expense and hassle so it's simply not worth it). As for converting a normal petrol car or 4x4, especially a thirsty one, it's a no brainer

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Correct you can't convert a diesel to LPG (well technically you can, but not without great expense and hassle so it's simply not worth it). As for converting a normal petrol car or 4x4, especially a thirsty one, it's a no brainer

 

Erm actually I beg to differ. You can in fact LPG a diesel. You just can't run 100% LPG like you can on petrol cars. The engine running it will determine how much diesel you need to feed in to get ingnition. Like has been mentioned earlier LPG will significantly improve a diesels power (and if used with a light foot will improve MPG). Have you considered water injection? That should provide quite a reasonable power increase on a diesel and subsequently better MPG as it burns more of that fuel instead of pushing it out the back as a cloud of smoke. I've had an LPG kit fitted professionally and I've done it myself from a pre-installed on a similar vehicle kit. One thing I will say is that since I sold my TT aristo on gas every single LPG pump within 20 miles of me has been either shut down or run over by a lorry.

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My brother had LPG fitted to his V8 Dodge Ram dayvan. It was a lot less expensive than I thought it would be. No problems, and it makes the van almost affordable (although the new-found economy didn't stop him buying a Mk1 MR2 as a runaround :)).

 

No idea about diesels, though.

 

.

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You are joking dude !!!! LPG is a by product from petrol production, the cost is all duty !!!! My 4.4 Range Rover is cheaper to run than our transit connect !!! (diesel)

 

Yes, but it hasn't taken off and so the cost is going to keep rising until it doesn't make sense anymore.

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Yes, but it hasn't taken off and so the cost is going to keep rising until it doesn't make sense anymore.

 

If the price rises so it doesn't make sense to buy it, then the price will decrease until it does. That's how prices work within a free market. At the moment LPG is about half the price of petrol and has been for ages. If LPG prices increase, you can bet that petrol prices increase too.

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Erm actually I beg to differ. You can in fact LPG a diesel. You just can't run 100% LPG like you can on petrol cars. The engine running it will determine how much diesel you need to feed in to get ingnition. Like has been mentioned earlier LPG will significantly improve a diesels power (and if used with a light foot will improve MPG). Have you considered water injection? That should provide quite a reasonable power increase on a diesel and subsequently better MPG as it burns more of that fuel instead of pushing it out the back as a cloud of smoke. I've had an LPG kit fitted professionally and I've done it myself from a pre-installed on a similar vehicle kit. One thing I will say is that since I sold my TT aristo on gas every single LPG pump within 20 miles of me has been either shut down or run over by a lorry.

 

I did say you can 'technically' ;), but you'd be hard pressed to find anyone who will do the conversion for you, as there is so much extra involved compared to a straightforward petrol engine conversion.

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Erm actually I beg to differ. You can in fact LPG a diesel. You just can't run 100% LPG like you can on petrol cars. The engine running it will determine how much diesel you need to feed in to get ingnition. Like has been mentioned earlier LPG will significantly improve a diesels power (and if used with a light foot will improve MPG). Have you considered water injection? That should provide quite a reasonable power increase on a diesel and subsequently better MPG as it burns more of that fuel instead of pushing it out the back as a cloud of smoke. I've had an LPG kit fitted professionally and I've done it myself from a pre-installed on a similar vehicle kit. One thing I will say is that since I sold my TT aristo on gas every single LPG pump within 20 miles of me has been either shut down or run over by a lorry.

 

Isn't that fumigation rather than a conversion though?

I've heard that it's actually rather good and quietens down the diesel knock a fair chunk.

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Erm actually I beg to differ. You can in fact LPG a diesel. You just can't run 100% LPG like you can on petrol cars. The engine running it will determine how much diesel you need to feed in to get ingnition. Like has been mentioned earlier LPG will significantly improve a diesels power (and if used with a light foot will improve MPG). Have you considered water injection? That should provide quite a reasonable power increase on a diesel and subsequently better MPG as it burns more of that fuel instead of pushing it out the back as a cloud of smoke. I've had an LPG kit fitted professionally and I've done it myself from a pre-installed on a similar vehicle kit. One thing I will say is that since I sold my TT aristo on gas every single LPG pump within 20 miles of me has been either shut down or run over by a lorry.

 

yup have to agree about lpg diesels.. i met a truck enthusiast telling me his truck is pushing 1400 ft/pbs of torque, and is running lpg & a water methanol kit on a diesel.. says it perfomes much better and burns more effeciently

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Just so happens I know a man that was involved in the very core of this sort of developments. He had a very immediate bereavement and now works for himself in a more general vehicle technical environment but what this man knows about LPG and its uses I would say is unprecedented on this Island. In the world of extreme motor sport I believe you will start to see some incredible advancements in other fuel injection enhancement systems.

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