W12 Black Sport for sale

[Godders]

Originally Posted by daviesbike

Thanks every one for your input,

i have reserched FSI LPG and a company i spoke to said they can do a full convertion and it runs 80% lpg and 20% petrol its a blend rather than fully one or the other the reason for this is to stop the injectors over heating but it still provides a good return in savings.

That's what I had read, the FSI required a blend of gas and petrol to run properly

Originally Posted by daviesbike

Mr Godfrey how the devil are you i have tryed to contact you a couple of times ....

Great thanks - work is mad at the mo, not had any message will call you this week for a catch up

Originally Posted by daviesbike

can i have your 2p worth from your experience on lpg with the d3 you and your father in law ?

what do you get mpg wise in terms of savings over all ?

Father in laws car has been great since the conversion, he's had no niggles other than the wiring fault on installation - fixed by the installer. His car has the later STAG system that monitors the lambda sensors and constantly adjusts. He's chuffed to bits with it.

You'll probably remember I was having lots of issues with mine, it was an early STAG 300 system and I eventually found out the Valtek injectors were worn out. Since replaced with OMVL injectors and not a problem since.

My 'real world' tank to tank mpg over 40k comes out at just under 19 mpg, that's with a good mix of local and motorway driving (the car has now done nearly 50k since the LPG was installed).

Originally Posted by daviesbike

mpg i can live with anything from 35 onwards after all what do we expect from a large barge like the 8.

Going on LPG being just over half the price of diesel (I use diesel for my comparison as I have had big engined diesels in the past and use that as my reference 'cause I can relate to that better) I'm looking at a real world equivalent of 36-40 mpg.

Don't believe the DIS mpg as it is based on calculations from requested petrol injector pulses. You are 'multiplying' gas into the engine over and above that to make up for the calorific drop in LPG so only use tank to tank calculations.

That being said I have seen a motorway only tank give me 25mpg at around 75-80 !

With a 95l toroidal tank and I have a range of around 360 miles, I don't use the LED gas gauge as they are often calibrated incorrectly. I just reset the trip when I fill up and when I have around 300 miles on the tank I start looking to fill up.

LPG is getting more plentiful with ASDA and Morrisons offering it in places and I have an account with Countrywide (mainly in south west locations from Birmingham down.

Also the petrol 4.2 is significanlty less complex than a derv engined car and parts are more realistically priced

[ainarssems]

i have reserched FSI LPG and a company i spoke to said they can do a full convertion and it runs 80% lpg and 20% petrol its a blend rather than fully one or the other the reason for this is to stop the injectors over heating but it still provides a good return in savings.

Do you have more details about the system they are offering?

If it runs on the mix of fuel it sounds like it is using original petrol injectors and additional LPG injectors using gasseous LPG. From what I have heard the correct way is to replace fuel injectors with LPG injectors injecting liquid LPG under high pressure directly in combustion chamber. This however means that you cannot use fuel if you run out of LPG and have nowhere to fill up because you no longer have injectors for petrol.

[daviesbike]

i didnt go in depth i just asked if it could be done and they said yes but they use a mixture

im guessing the injectors run 20% and then the would drill into the intake manifold the same as a non FSI and use the two systems together running 80% lpg through the intake manifold and the 20% directly injected as petrol for cooling and lubrication ......

if i LPG My W12 i would more than likely get about 35 mpg i guess ... its just the thought of it going wrong and having the new £23000 engine go bang .. i dont have a spare in the wheel well at the moment so if i had a tank in there that would not bother me at all it would be fine ... W12 is a complex beast but also very refined and smooth ive priced up a convertion and it was close to 3k fully converted...

could always do that i guess .....

[ulfilias]

Hi There,

I saw an A8 W12 converted to LPG by my friend James ( http://www.thelpgcentre.co.uk/ ) Certainly possible. Give him a call if you are looking at it and he may be able to point you in the right direction even if you don't use him, though he is a good guy.

Lee

[A8 Doc]

James is very up on the LPG system on the W12 I spoke to him in great depth and he was very knowledgeable.

Also there is a company in Derby who use BRC.

[daviesbike]

Originally Posted by ulfilias

Hi There,

I saw an A8 W12 converted to LPG by my friend James ( http://www.thelpgcentre.co.uk/ ) Certainly possible. Give him a call if you are looking at it and he may be able to point you in the right direction even if you don't use him, though he is a good guy.

Lee

Thats funny thats where i had my quote from

they seem very good and i will use them if i do it

[daviesbike]

A few more pictures with the FE Wheels