LPG conversion-can be harmful?
What do you guys think? The supercharger we have on our W211s would make a difference in a bad way?
Any inputs are welcome,pls chime in!
Thanks in advance!
1. Sell E55
2. Buy E320 BlueTec or buy E320 and convert that to LPG
The whole point of owning a gas guzzler like this is the performance, why do you want to take away the potential of a supercharged V8, which will ruin the performance and leave the V8 as a dead weight. Get a 6 cyl and LPG that, yes it's not going to be fast but tuning LPG to be fast is difficult and won't yield the potential high octane gas can. I said you're a troll because it's like me going on a Lambo forum and asking how to convert it to solar or electric, that's not the point of the car.
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The only problem is that he just asked on the wrong forum.

To the OP: maybe go on one of those forums from Australia like Fullboost http://www.fullboost.com.au/forum/index.php
There's stuff like this:
"I just recently had my Holden V8 motor rebuilt for use on straight LPG use. The system I will be using is a Impco 425 mixer. The motor has all the usual goodies and has a Gas research Voodoo camshaft and 10:1 comp. Anyone else use LPG for a performance application and how did you go? And what system are you running. Also anyone have any info on who has the cleanest and highest octane LPG going around. Who said LPG is only good for BBQ`s."
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The only problem is that he just asked on the wrong forum.

To the OP: maybe go on one of those forums from Australia like Fullboost http://www.fullboost.com.au/forum/index.php
There's stuff like this:
"I just recently had my Holden V8 motor rebuilt for use on straight LPG use. The system I will be using is a Impco 425 mixer. The motor has all the usual goodies and has a Gas research Voodoo camshaft and 10:1 comp. Anyone else use LPG for a performance application and how did you go? And what system are you running. Also anyone have any info on who has the cleanest and highest octane LPG going around. Who said LPG is only good for BBQ`s."

I don't think people quite understand what the OP is asking. LPG (called autogas in Europe) has a high octane rating of 108 RON. The energy density is lower (then gasoline) so there is no real savings in MPG (fuel consumption is actually higher than gasoline, diesel, and E85 fuel.) The OP is concerned about costs since there's much less tax on LPG in Europe, so LPG comes out as cheaper. Plus in Romania, gasoline quality is bad and inconsistent.
The point is, get a more fuel efficient car if you can't afford petrol, it's the smart thing to do. Doesn't mean you have to sacrifice luxury, the E320 is just as luxurious on the inside as the E55 and if you want the performance, LPG is going to take it away anyway.
It's not all about efficiency otherwise he'd certainly be driving something else. And in places like Sweden and Finland (where some really hard core car enthusiasts tend to be) they're modding performance cars to run off alternatives to petrol including LPG.
RUF (one of the most famous Porsche tuners) has built an electric 997 with 480 ft lbs of torque. And Porsche itself has built their amazingly quick Porsche 911 GT3R Hybrid. Even AMG is building the SLS E-Cell. I guess the point being is that performance and alternative energy are no longer the polar opposites like they used to be just a few years ago.
The OP isn't wanting to do this mod for economy, he's doing it to save money on fuel! Plus, the octane of LPG is generally a lot higher than gasoline, so he could potentially increase performance from this mod by being able to run more boost without detonation. Why anyone thinks LPG is E85, or tat it's going to slow the car down is strange.
The point is, get a more fuel efficient car if you can't afford petrol, it's the smart thing to do. Doesn't mean you have to sacrifice luxury, the E320 is just as luxurious on the inside as the E55 and if you want the performance, LPG is going to take it away anyway.

To the OP, my advice is to find a shop willing to take on the job first, and then go from there. Once you get the swap done, then consider upping the boost/other mods and get a dyno tune to go along with it. Good luck!
Why people have to crap on this idea is beyond me. You have no idea of the situation. I think it would be neat to see it done...heck, a natural gas conversion would be cool too. Especially if you could pull out more HP.
Why people have to crap on this idea is beyond me. You have no idea of the situation. I think it would be neat to see it done...heck, a natural gas conversion would be cool too. Especially if you could pull out more HP.
Also, LPG and CNG systems have improved in recent years. I know someone that recently drove a CNG powered H3 Alpha SUT Hummer from California to New York. His fuel cost was a little over $500. Site and blog is here. Gonatgas.com
To make things clear:
In Romania there are some shops that are doing this sort of "LPG conversion", and they claim that with the new type LPG installations produced in Italy and Holland you won't have a loss of power greater than 5%. I don't buy that, of course they have to sell.
But I would preffer to use LPG in the city(where our MPGs are frustrating), drive a little slower(you're not supposed to do all day long races in town) and run my car as I like using gasoline outside.
The $$$ savings comes from the fact that although fuel consumption is about 6-7% bigger on LPG, the price is half of the gasoline.
And now my main concern:
Because as all of you I love my "baby beast", I'm afraid of possible complications that could occur, such as a blown engine, knock on wood.
Of course if you ask the guys from the shop about this they will say "you won't have any problems", but again, they have to sell.
This was my question, but as 220S said I asked on the wrong place considering gasoline is a lot cheaper in the States.
Thank you all again !
best regards
Tomaz
best regards
Tomaz








