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 vwombat
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| posted on May 28th, 2004 at 09:47 AM |
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LPG conversion on an Aircooled
Anyone done this or seen it done?
Just thinking out loud!
:o     :P:thumb:birthday
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AdrianH
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| posted on May 28th, 2004 at 10:48 AM |
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No
Why ?
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KruizinKombi
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| posted on May 28th, 2004 at 10:57 AM |
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No, but I've thought about it.... there are two methods I can think of that may work:
1) Use a standard LPG system using oil intead of hot water to heat the gas from its liquid form.
2) Use injected LPG directly into the ports. Maybe 10 years ago I read an article on a company developing a EFI dual fuel system for a six
cylinder commodore where BOTH fuels were fuel-injected. The system ran two seperate fuel rails through one set of injectors, with an additional
injector in the central plenum chamber to keep the engine running during change-over from one fuel to the other.
Personally, I wouldn't mind trying out LPG-only through a Haltech programmable efi system..... lotsa $$$ though!
Kruizin Kol
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preacherman
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| posted on May 28th, 2004 at 11:03 AM |
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conversion
It is appropriate that someone with the pseudonym of preacherman says something about conversions!!!
A goiod friend of mine has a bay window kombi..he is a VW genius and very unassuming. He has been running his vdub on gas for about 4 years. The
engineering is incredible and well thought out ...not bad for a guy who can hardly read and write!!!
He has had people over here stumped...ve experts.. who told him it could not be done. It can be replicated for those who are interested.
I will get a pic of the set-up when i see him next. By the way something for those that don't mind choppig their kombi's....he cut out the air
intake vents on the top rear of another bay and placed them lower at the engine bay level. So he has two vents with cooling air getting to the engine
bay...the original high ones and two lower ones placed on the same vertical plane.
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bus356
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| posted on May 28th, 2004 at 11:32 AM |
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Wow, I wanna see thsi kombi!
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matara
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| posted on May 28th, 2004 at 12:13 PM |
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In an old Total VW mag I've got they convert a T3 square to LPG using a kit supplied in the UK. IT was about 600 pounds from memory. If you relly
want it I can see if I can dig it out and scan it!
Steve
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 Bizarre
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| posted on May 28th, 2004 at 12:48 PM |
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I did see about a year ago an old bloke driving a bay out Blacktown way that had a LPG sticker on the # plate.
Dont know if he just knocked off the plates, but there wasnt a radiator up front and it went dak dak dak, so i am guessing he is telling the truth.
I have also chatted to a bloke in Italy that has done it
Futue te ipsum!!!
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vwombat
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| posted on May 28th, 2004 at 08:09 PM |
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Yeah, My old camper was a wonder of backyard engineering. A crazy old bastard in adelaide did lots of funky things like installing a water heating
system around the engine block for a hot shower. It was dual fuel but on a Mazda 323 engine.
The thing ran on spare change. It was a ripper! I was just wondering about air cooled conversions. There must have been a few nasty accidents with
these experiments tho'?
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preacherman
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| posted on May 28th, 2004 at 08:17 PM |
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post script
Hear the preacherman...this conversion is good!
I ran into my friend who did the gas conversion today by chance at the Volkspower shop. I asked him re the gas concersion . His motor is a 1800 vdub
motor that runs sweet as a nut. He had some great trial error stories and then came up with a great way to heat up the gas before it enters the
combustion chamber. Very clever chap. Not one to sit on his laurels he is now in the process of putting in Air conditioning. Amazing guy....
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seagull
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| posted on May 28th, 2004 at 08:20 PM |
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that would be right I just on the edge of my seat um where is the photo I say please ! :sandrine
Looking for that special lady : PM me for coffee & cake
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preacherman
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| posted on May 28th, 2004 at 09:48 PM |
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I like the Fairy - Neil.
I did not have my camera with me today...strange that as I tend to carry ti with me lots just in case. He is coming over to my place and then pics and
stories galore!!!
Wait for the next instalment
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OvalGlen
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| posted on May 28th, 2004 at 11:24 PM |
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Yeah my original plan was to supercharge my little Beetle
Using LPG only and also using the direct injection
system.
I was put off by some who claim that it would run too hot.
Also the mob that did the Fuel inj for LPG up here at Smithfield seemed Vague about how it all worked, so
I did not trust their expertise.
Another issue was the tank, I finally figured it would need to go basically in the original position - so would need to be custom
built, and they must be inspected every 5 yrs.
From memory 1/3 of the tank is unusable, so to get the
tank size reasonable for range, it would be a real Feat,
add to this that with LPG you get 2/3 the distance on same quantity of fuel, without Great effort you could have a very low Range vehicle.
Regards,Glenn>
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vwombat
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| posted on May 29th, 2004 at 11:45 AM |
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I had a tank under the rear seat/bed in the Kombi. It was fine for about 250k's if I remember correctly. I loved the option of kicking over to petrol
tho' if I needed to. Quite handy at times, as some backwaters don't have an LPG bowser.
I'm gonna be a happy chappy if you guys can supply some more info about these conversions. Cool arsed shite!
Any of the shops doing things like this? Or are they all big phat scaredy cats?
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seagull
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| posted on June 3rd, 2004 at 01:22 AM |
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photos ( ?? ) please :cry
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vwombat
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| posted on June 30th, 2004 at 11:51 PM |
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This one died in the arse now didn't it?
C'mon guys. Let me pick your brains. Don't make seagull suffer any longer.
All the Northern NSW hippies should be into this stuff too. Much greener burning gas than petrol after all.
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seagull
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| posted on June 30th, 2004 at 11:58 PM |
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Yes it did I still look at for this post each time I log on ! :cry
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preacherman
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| posted on July 1st, 2004 at 12:14 AM |
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Sorry guys
It was wicked of me to tantalise you with this thread then no pics etc. I have had the flu for a couple of weeks then I had to go to Sydney. I am back
now and while I was away the guy with the gas kombi came over 3 times...... I will call him and get a few pics and some details.
Will post this week with full story , pics and put you guys out of your misery
Lindon
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Unity-28
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| posted on July 1st, 2004 at 10:09 AM |
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THis is a great topic.....At least people are trying to run their VWs on other things than petrol, cause these great cars will disappear once the
petrol supply starts getting real low.....
N!
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type2nut
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| posted on July 1st, 2004 at 09:13 PM |
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Up until November 2002, I spent most of the previous 15 years living in the UK. Mostly due to the price of fuel (at nealy 90 pence / litre when I
left, MANY VW bus owners were running their aircooled dubs on LPG. Don't let anyone tell you it can not be done, or it can not be done successfully.
IT CAN AND IS!!!!
The most common way of heating the LPG was by using a large metal rod inserted (and fixed) in to the silencer. This had pipes at the end that heated
the LPG sufficiently. Another method was that mentioned above ie. oil heated. For a reason I don't know, this was not as successful. Odd because it
seems a better idea to me.
There used to be a lot of threads on exactly this topic on the following forum: http://www.justkampers.co.uk/interactive/kamperchat/index.php
I assume you can still access them.
There may also be some info here:
http://p067.ezboard.com/fclub8090chatfrm7
but a lot of these will be for the watercooled T25's.
I run my 1990 Syncro on LPG and it is the only wasy I can afford to use it!
Have fun,
Andy.
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Kombination
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| posted on July 1st, 2004 at 09:52 PM |
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Coast to Coast Kombis.... i have an LPG fitted van in at the moment and it has the rod through the exhaust. The guy who did it disconnected it a while
ago..anyone want to have a look and even better get it going again be my guest!!!
cheers Iain
GOLD COAST 0405537492
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phantom
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| posted on July 4th, 2004 at 07:25 AM |
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LPG in Kombi
I can't add much to this thread however I looked into LPG when I had my 76 Kombi, this would have been back in the late 80's.
Back then, the major oil companies were running packages to set you up with an LPG conversion which you then paid back in little bits when you bought
fuel. I was interested and enquired but told it wasn't possible with the VWs, however there was a way to arrange it.
Not knowing much VWish then (probably still the same), I was told I needed to have a radiator system to heat the gas. The fuel company would be
interested in setting me up if I went back to them with a Kombi complete with working water / radiator system. They gave me 2 names of mechanics in
Brissy who were 'approved' to perform this.
I approached them. First guy would fit a small Japanese radiator to the front of my Kombi just behind the bullbar. Interesting that he would not fit
it if you didn't have a bullbar (protection from the front). He would run pipes under the car to the back. He was also experimenting at that time
with a 'flat' radiator that sits longways instead of up/down, to fit over the cab of the Kombi. His price for the setup was the vicinity of $2K.
Thats no LPG, just a hot water system. Argh!
Number 2 mechanic would fit a radiator to the back, sitting on the back bumper. The water had a much shorter distance to go, however he hadn't
perfected the mounting system, basically if you ever wanted to open your engine lid (you know, radical ideas like checking oil), you had to drain and
disconnect the radiator, removing it completely. Wouldn't that be fun? His price was about $1900, Jap radiator too.
So, being young and not flush with $$, my LPG Kombi idea bit the dust. I'd be very interested to see current pics here of it working.
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vwombat
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| posted on July 8th, 2004 at 02:07 PM |
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Keep it real Preacherdude!
I've heard inklings about the Muffler heating technique on the German forum, but LPG isnt real big in Germany. I've also heard mention of an
adaptation to the heater boxes for this purpose.
Still hangin' out to hear some more details from the Preacher tho'.
[Edited on 8-7-2004 by vwombat]
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azz
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| posted on July 8th, 2004 at 02:59 PM |
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| Quote: | Originally
posted by preacherman
...he cut out the air intake vents on the top rear of another bay and placed them lower at the engine bay level. So he has two vents with cooling air
getting to the engine bay...the original high ones and two lower ones placed on the same vertical plane.
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Ive seen this Kombi in BrisVegas I think.
Its greeny/brown?
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preacherman
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| posted on August 3rd, 2006 at 12:16 PM |
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LPG Bay Microbus
Hi All
This thread was allowed to die for a while as I left WA and moved over to NSW. I am going back to WA over Christmeas for a few weeks and I will take
pics and get all the details and know how on how my friend did his 1800 Kombi and runs it on LPG. BTW he also did his passat S/W which he owned from
new and gets about 1000kmwith fuel and gas tanks.
Interesting thing he did with the kombi was to graft in another pair of vents..the ones that are at the top of the rear corner. He grafted another
pair on either corner at engine bay level. This guy weas a thinker. He found a way of doing the LPG conversion with total reliability and economy we
can only dream off.
I hope get the plans and OFFER A SET DEAL for all interested parties.....with petrol prces going the way they are it makes sense eh!!
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HotRodMatt
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| posted on August 3rd, 2006 at 12:21 PM |
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The secret is you don't have to heat the gas, just stop it freezing in motion.
Two LPG experts from the ACT use the oil cooler for that.
Don't forget you also need a new cam, so budget in a rebuild too.
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toplessbug
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| posted on August 3rd, 2006 at 12:28 PM |
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http://shoptalkforums.com/viewtopic.php?t=102581
this is the stf take on it
when you convert to lpg its not the gas that needs heat,itsthe convertor the device that changes the gas from a liquid to a gaseous state and if not
heated it will freeze and you wont be going anywhere ,the reason its so easy in a w/c car is you simply tap into the recirculating hot water and off
ouy go
Oil heating wont work as the oil takes to long to get to a temp that will prevent the convertor from freezing
Don't argue with an idiot; people watching may not be able to tell the difference.
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malcolm
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| posted on August 3rd, 2006 at 03:26 PM |
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what about lpg liquid injection that they are using on late model cars .gas goes into the combustion chamber as liquid and expands 1400 times in the
cylinder better combustion more efficient.
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vwpete
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| posted on August 3rd, 2006 at 03:35 PM |
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here ya go some bloke in the UK, done it to his camper
http://www.kampaman.co.uk/LPG.htm
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Craig Torrens
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| posted on August 3rd, 2006 at 04:37 PM |
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WOW over 2 years to post some photo's :jesus
Maybe he is preaching somewhere?
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kombidaze
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| posted on August 3rd, 2006 at 06:03 PM |
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an interesting site http://wps.com/LPG/index.html#INDEX
quote from site
LPG experts will tell you two things you will need to make it all work -- a good ignition system and a good cooling system. And they're absolutely
right. LPG requires a good hot spark, and an ignition marginally OK for gasoline will run terribly on LPG. I had a classic textbook example of this
happen to me; read about it in the PROBLEMS section.
An electronic ignition is probably a must. My car had old-fashioned points and spark coil, to which I added an Autotronics Multiple Spark Discharge
ignition, which cost me $89 in 1986. It works flawlessly, simple to install, and a set of points now lasts 50,000 miles.
You need a good cooling system, not because the engine runs any hotter, but because the LPG regulator/converter uses engine coolant to provide the
heat to convert the liquid LPG to a gas. (Even ``cold'' water works -- it just has to keep it above freezing.)
An LPG conversion does not require any special modifications to the engine. Since LPG has fewer BTU's per pound than gasoline, and the engine is
designed to take in a fixed volume of fuel/air mixture, you'll get about 10% less horsepower for a given engine, at full-throttle. To help
compensate, LPG has an octane equivalent of about 110 -- meaning you can advance the ignition timing a lot. The actual loss depends on the specific
engine, but it will probably not be noticeable.
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