[GreekboyD]

Lots of meth talk here so let's talk LPG:

The first thing to understand is that the LPG is used as an ancillary fuel. An additive, if you like. The original diesel fuelling system – whether that’s a mechanical distributor pump, common rail direct injection or electronic unit injection – stays completely intact and unmodified. The car runs on diesel as it did before.


However, the magic comes in the addition of LPG to the diesel fuelling mix. The LPG is added in vapour form prior to the turbo (in turbo engines) or prior to the inlet manifold (in naturally aspirated engines). The LPG, comprising about 25 per cent of the diesel flow, burns along with the diesel in the cylinders. The combination of the diesel/LPG fuel gives the greater power output and lower emissions. The reduced running costs come from an improvement that is realised in diesel fuel economy – and the fact that LPG is a cheaper fuel than diesel.

And if you think all this means some kind of bodgy system complete with a space-robbing gas tank – think again! We’re talking an electronically controlled and custom mappable professional LPG injection system, complete with a tank so small that in some applications it can be placed under the vehicle!

Taken from here:

Link

[Built4Sin]

I had a LPG system in my mk4 TDI, cleans up the fuel burn and hits like nitrous. Mine timed in from mid throttle to full open.

[Puerto Rican 335d]

Greek you bastard I had a feeling you were going to start something jajaj hey come down here in october the boys will be back down here and party like we did you can stay in my house only problem is that you'll hv to sleep w one of them jajajajajaja I dont have extar rooms and bed unless you sleep on an inflatible bed I hv for camping LOL

[GreekboyD]

Originally Posted by Puerto Rican 335d

Greek you bastard I had a feeling you were going to start something jajaj hey come down here in october the boys will be back down here and party like we did you can stay in my house only problem is that you'll hv to sleep w one of them jajajajajaja I dont have extar rooms and bed unless you sleep on an inflatible bed I hv for camping LOL

Jess is first amigo. He's coming down in October.

[Mik325tds]

Originally Posted by GreekboyD

Lots of meth talk here so let's talk LPG:

Finally! I've been dreming of adding a CNG kit to mine a long time ago. They say you can get around 80mpg on your diesel!
Problem is, there's only one CNG fueling station in Detroit. So I'd have to have a small compressor in my garage.
So LPG might be the better alternative of the two, yet a little bit more expensive on the fuel.

In comparison with the meth, you'd loose the cleaning effect on the CBU though. Not sure if either LPG or CNG has any positive effect on CBU.

If fuel efficiency is your goal, it sounds like LPG or CNG has the advantage.

[TDIwyse]

It would be wise to be monitoring your EGT's ...

[GreekboyD]

Originally Posted by TDIwyse

It would be wise to be monitoring your EGT's ...

Yep.

[Mik325tds]

Good point. Do you expect them considerably higher? I don't do much pulling or hard driving. Just a 50mile commute every day. EGTs are at 300C ( 575F).
Are there any other concerns?

[TDIwyse]

Originally Posted by Mik325tds

Good point. Do you expect them considerably higher? I don't do much pulling or hard driving. Just a 50mile commute every day. EGTs are at 300C ( 575F).
Are there any other concerns?

More in regards to full fueling conditions if you're adding it then.

[gtp900]

I have a cng station near me,( I installed it lol!) how hard oh a conversion is this?
Has anyone here found any info on how to do this?

[WreckerX5d]

What about...both?

[gtp900]

Originally Posted by Wrecker335d

What about...both?

Yup, did some research. I'm still checking into it, but kind if leaning toward a LPG system at this point,(cost is 1/4 of cng) with essentially the same gains all around,(mpg/hp) Looks like a pretty easy install as well, with double the milage
With both systems you just add gas, not a 100% switch over, it's about a 50/50 mix either way,(LPG, or cng)

[DbLog]

Originally Posted by Built4Sin

I had a LPG system in my mk4 TDI, cleans up the fuel burn and hits like nitrous. Mine timed in from mid throttle to full open.

What kind of mgp increases (if any)did you get with the LPG?

[Mik325tds]

Originally Posted by gtp900

I have a cng station near me,( I installed it lol!) how hard oh a conversion is this?
Has anyone here found any info on how to do this?

Seems to be pretty straight forward. Most expensive part is the high pressure tank which will also cost you a lot of space in your trunk.
Here's a pretty good introductory read. They guy also mentions the increase in EGT and advises to monitor it.

http://www.cngconversionkitsinfo.com/diesel-kits/

[Built4Sin]

Originally Posted by DbLog

What kind of mgp increases (if any)did you get with the LPG?

Are you DBLog from TDIclub? I had mine for power really, I didn't do enough distance driving to be of any-use to anyone for mpg savings. Roundtrip was 10 miles in Louisiana and once I arrived in NV where I could have used it (60 miles roundtrip all highway), the daily temps had the tank safety weeping in the car so I removed it.

[2deerwhistlers]

Originally Posted by GreekboyD

Jess is first amigo. He's coming down in October.

I'll sleep on a camping mattress with you squirrels..no problem, but I don't think I will make it to the island this year..

[DbLog]

Yeah that's me. Can't believe I'm down to one car...for now it's a keeper.

Originally Posted by Built4Sin

Are you DBLog from TDIclub? I had mine for power really, I didn't do enough distance driving to be of any-use to anyone for mpg savings. Roundtrip was 10 miles in Louisiana and once I arrived in NV where I could have used it (60 miles roundtrip all highway), the daily temps had the tank safety weeping in the car so I removed it.

[Puerto Rican 335d]

Jess Ill let you sleep with my Pitbull/Dauschaund mix dog jajajaja he will keep you comfy jajajaja