"Paul Saccani" <
sac...@omen.net.au> wrote in message
news:lukpf9doik6f63m3v...@4ax.com...
>>news:ldhc6f$th4$1...@dont-email.me...
>>> On 13/02/14 2:50 AM, Damian wrote:
>>>> Take into account the wear and tear on LPG converted engines, low
>>>> kilometers per litre, etc.
>>>
>>> The wear rate of lpg engines is considerably less than it is on petrol
>>> engines all else being equal.
>>
>>I'm sorry man. You have no idea what you're talking about.
>
> Might it not be possible that licensed E class gas fitters actually
> know things that you do not?
It's completely possible.
But, also possible Licensed E class gas fitter won't disclose all the
negative effects of
some LPG conversions due to the conflict of interest.
And independant observer with relevant knowledge won't have that issue.
But, then again, you have zero knowledge about my credentials, but
assumptions of
my "cluelessness" and "loon-ness".
>
>>You can argue about being equal for a properly converted ones
>
> It isn't equal, they last longer. Much longer. Typically, a million
> km before major overhaul.
Wow! Million kilometers?
What did I do wrong to go through two heads already?
>
>>But, no way for the majority of poorly converted dual fuel ones.
Really? So, what did I and many other's got wrong?
>
> Actually, it also applies to the majority of poorly converted ones
> too.
>
>>Have you seen and heard of owners whinging about the saving being not
>>worth
>>it,
>>'cos of the higher and less than earlier expected repair costs on some lpg
>>cars?
>
> What has uninformed whinging got to do with the facts?
What facts?
>
>>Most dual fuel ones aren't properly tuned for both lpg and petrol. And
>>some
>>cars like mine,
>>it's not even possible. That's why I have it tuned for lpg and drive
>>couple
>>of kms a day on petrol, just
>>to make sure petrol side of it doesn't get stuffed up by non use.
>
> What make and model?
Patrol
>
>>Just google it. LPG causes extra wear on many parts of the internals and
>>externals of the engine.
>
> <chortle> like what?
(chortle).Lke many.
http://www.amrautos.co.uk/index.php/lpg-systems
This is also a good article.
http://gas2.org/2013/07/09/5-reasons-to-not-convert-your-car-to-propane/
This is even better.
http://www.ijest.info/docs/IJEST10-02-10-063.pdf
Thia ia also a good read for you.
http://www.slideshare.net/ucsp/experimental-study-of-the-effects-of-lpg-on-spark-ignition-engine-performance
This another balanced, tiny amount of info
http://www.mynrmacommunity.com/motoring/2007/11/19/lpg-vs-petrol/
>
>>Having to rev the motor high to get the same amount of power is enough
>>reason alone.
>>Imagine doing it first thing in the morning when the motor is cold and
>>most
>>critical parts aren't properly lubricated due to being just started.
>
> Actually, they are properly lubricated with LPG - that's the main
> reason the engines last so long.
NO they don't. It's a theoritical fallacy, with little regard to practical
applications out there.
There's very good reason many mechanics advise not to rev the motor during a
cold start, but idle it for few minutes.
>
> The problem is, you are turning your ill informed assumptions into
> facts, which they are not.
I see the same with your amazing claims.
Like million kilometers before major overhaul, like five times the life
expenctance of a petrol engine.
Are you for real at all?
Have you ever owned a duel fuel(oh sorry bi-fuel) car at all?
Where's your data about those grand claims as above?
>
>>This is why straight gas cars are usually better, 'cos they usually get
>>modified for that.
>
> Actually, often, they aren't so good.
Here you go again. Inventing pointless counter arguments as you go.
>
>>Dual fuel is dodgy, 'cos most installers do the el cheapo and handover the
>>car to the owner.
>
> I really doubt that you have any capacity to make such judgements.
Noted.
But, I have far better capacity than you would ever imagine.
If you are an installer, retailer or a wholesaler, my ideas defly may hurt
you.
But that ain't intended.
>
>>>> I bet you won't be spending thousands on an LPG conversion.
>>>
>>> I can't speak for anyone else, but in the last 6 years I spent 5 grand
>>> on
>>> lpg conversions on my own vehicles and I'd happily do so again tomorrow
>>> if
>>> I had one that needed it.
>>
>>I bet you won't be 'happily' doing it once the subsidy is gone.
>>Wait until June and 'enjoy' it after.
>
> Unlikely, actually.
Unlikely, what?
>
>>> The cost of the conversion in isolation isn't the critical factor. It's
>>> how long it'll take you to recover the money and *then* go over onto the
>>> savings side of the equation that is important.
>>
>>Yes. It's not worth it for a commuter who does limited amount of kms a
>>week
>>and live near the city and work there.
>
> At last, a sensible statement.
Nope, there were plenty above. Just you lack the practical sense to sense
them.
>
>>>> Compare it with the Petrol price and the power you get from Petrol
>>>> engine.
>>>> conventional dual fuel engines produce less power with LPG.
>>>> Even EFI ones produce less power per RPM.
>>>
>>> Rubbish :)
>>
>>You have to prove it with data. I ain't buying your word.
>>I haven't seen a single installer, manufacturer of conversion kits who'll
>>guarantee more power from their kits/conversions.
>
> Which has got nothing to do with producing the same power, which is
> what was being discussed. Even back in the eighties, with the classic
> IMPCO conversions on the VN, power was within 5% of the petrol figure
> at the worse part of the curve, for most of it, it was identical.
And conveniently ignoring how quickly that power curve deteriorated.
>
>>Theoritically, you can always argue with your claws and teeth that it's
>>feasible. But, in reality, Petrol combusts better and produce more
>>horsepower.
>
> The only problem being that LPG combusts better than petrol! It's a
> very elementary piece of knowledge to have. That's why its emissions
> are lower.
Emissions are lower 'cos LPG has less carbon, not 'cos it 'combusts better'.
>You seem to be confused by the calorific value of the
> fuels,
There's no confusion, yet. If I did, I would've said that LPG produces more
power, 'cos it's caloric value is high.
" LPG has a typical specific calorific value of 46.1 MJ/kg compared with
42.5 MJ/kg for fuel oil and 43.5 MJ/kg for premium grade petrol
(gasoline).[6] However, its energy density per volume unit of 26 MJ/L is
lower than either that of petrol or fuel oil, as its relative density is
lower (about 0.5-0.58, compared to 0.71-0.77 for gasoline)."
>which doesn't have that much to do with how much power you can
> make.
Which does has much to do with how much power you can make, 'cos other
factors come into it action as above, and how you provide the LPG into the
combustion chamber and the techniques
you use to do that.
> it's about consumption. That's why you use more LPG to produce
> the same power.
Finally said something that make clear sense. More LPG to produce same
power, right?
Good statement. So, how you gonna win your argument about LPG producing more
power, if you have to use more LPG?!!
I would love to know.
Caloric value is direcly related to how much energy you can get from
it.Which in turn directly related to power.
How you go about getting that power is how you use the technology to get
that power from the fuel.
>
> You are clearly clueless.
You are beyond clueless.
>
>>That's the equation I know.
>
> Clearly, you can't differentiate between an uninformed opinion and
> knowledge.
You don't offer lot of knowledge. Just your (un)informed opinions, based on
few theoritical clues here and there.
>
>>If you wanna prove me wrong, you gonna have to better than bringing in
>>your
>>subjective experience.
>
> I see, so you introduce your subjective experience, but you devalue
> that of those whose experience means that they would know more about
> it than you. Interesting exercise in logic.
I haven't devalue anybody's experience, subjective or otherwise.
An individual who spends a fortune on a conversion then drives million kms
and then brags about his savings?
No, that opinion is irrelevant for the majority of drivers who drive LPG
converted vehicles that aren't
converted properly to get the best benefit of fuel economy and perfomrance
of an LPG vehicle.
The same way, your so called 'informed opinion' is irrelevant to the
majority of who drives LPG converted vehicles.
There a big difference between parroting few theoritical 'facts' and the
practical reality out there.
>
>>> Until very recently I had two vehicles fitted with injected vapour lpg
>>> systems. I still have one (with the same Prinns system being used on
>>> both
>>> cars) and their performance is/was indistinguishable between gas and
>>> petrol.
>>
>>Rubbish.
>>Indistinguishable as you say, not better.
>
> You are the loon who introduced better....
Talk for yourself.
You are the goon, bragging about LPG engines lasting million kms and five
times the petrol engine lifespan and
and more and more bullshit about LPG even producing more power per litre
than petrol.
The crap list goes on and on.
>
>>And you have spend a fortune on
>>the conversion to get that result.
>>And you won't be getting your money back, unless you're a really high
>>mileage commuter.
>>
>>Furthermore, haven't measured the HP to come to that conclusion. Just
>>heresay based on your subjective experience.
>>Reality for the majority of the cars are far different from what you are
>>conveying.
>
> The reality is that you don't have a damned clue. Gas conversions are
> subject the same regulatory tests for emissions as new vehicles. That
> means that the power curves and consumption curves are done to
> standards for the government.
>
>>It is possible for LPG to match the HP of Petrol. But, you have to give
>>considerable attention to ignition system and fuel system modifications to
>>achieve that.
>
> Actually, you don't.
Actually, you do.
>
>>Most installers won't go anywhere near that trouble, but doing the best
>>with
>>what they have to make their money.
>
> You can't just slap any combination of parts on - it has to be a kit
> of approved parts in an approved combination with an approved
> installation technique.
Nobody said otherwise.
Everybody knows you can't put a Camry engine in a Corolla.
>
>>Find me an installer or conversion kit that guarantee better HP per
>>volume(or rather weight) of fuel unit, I will zip my mouth, and won't
>>argue
>>with you.
>
> I'm staggered by what passes for logic with you. When someone says
> that the power is the same, there is absolutely no need for them to
> demonstrate more power.
You brought in the crap argument about LPG being able to produce more power.
Go back and read your own stuff.
>
> That is idiotic, to say the very least.
It's beyond idiotic to invent the crap and change it when it suits you, even
in a single post.
>
>>> I've been using lpg powered vehicles for over 30 years and in that time
>>> I've seen some *appallingly* bad conversions,
>>
>>Now you're talking
>>
>>> but in almost every single case the resulting performance loss was the
>>> fault of the installer in doing a terrible job.
>>
>>Finally we're agreeing on something.
>>
>>>
>>> A vehicle fitted with a properly installed and tuned injected system
>>> (either vapour or liquid) would be impossible to detect running on
>>> either
>>> fuel.
>>
>>Not impossible, but acceptable.
>
> No, impossible to detect. That's the fact. The driver won't be able
> to tell.
Correction, an average driver won't be able to tell.
>
>>But, how about the cost of such conversions my man.
>>Does the subsidy cover anywhere near the total cost of such good
>>conversions?
>
> Irrelevant to your claims.
Go back and read the thread heading to educate yourself then.
>
>>And add that to the subsidy going kaput soon and price of lpg keeps sky
>>rocketing.
>
> The subsidy is hardly relevant to a gas fitter, just a bonus.
>
>>You won't be laughing..
>
> LPG will be around a lot longer than petrol....
That another ill informed grand assumption of yours.
>
>>>> If I uderstand it correclty, majority of the LPG cost for the
>>>> manufacturer
>>>> goes into storing it, and also special
>>>> means of transportation. Otherwise, it was a waste product.
>>>
>>> LPG is a by-product of the crude oil refining process, but that's not
>>> it's
>>> only source. It also comes from natural gas.
>>
>>I know that. Regardless of some daydreamers like to believe, it ain't
>>forever.
>
> I don't recall anyone suggesting that it did.
There are many loons in the conservative daydreamers camp who believes it
ain't gonna run out .
> Though there was a loon
> who suggested that it was a waste product, when it never has been.
That 'loon' actually got a fair bit more of a clue than you do.
LPG was a waste product up until methods were devised to contain it, and use
it.
During early stages of refining crude oil, whatever LPG produced was
simply wasted.
And the same happened with NG, that came out during the the process of
accessing Petroleum,
which also was a source of LPG.
>
>>>> My point.
>>>
>>> I'm sorry, but it's not exactly clear what your point is, other than you
>>> being unhappy with the current price.
>>
>>That is my point man.
>>The ridiculously rising price is only the tip of the iceberg.
>>And I can see clearly where it's heading. It's been happening for years.
>>It doesn't make any sense economically to apply high excise on a
>>relatively
>>clean source of fuel, that doesn't cost heaps extra to produce it, but
>>only
>>to store it.
>
> It doesn't have high excise.
Oh yes. My bad. That was figurative. Let me correct.
Comparatively higher excise, I meant to say.
I think that will keep your brain happy.
and the recent hike of LPG price has been connected with
excise increase. Assuming that is true, that contibuted to my 'unhappiness',
and the launch of this thread,
which in turn obviously made you unhappy, but not intended though.
> Which kind of illustrates the depth of
> your knowledge of the subject, which isn't so much as ankle deep.
The problem with that metaphor is finding a measuring unit, may be
impossible, in order to describe the depth of your so called self proclaimed
experties in this area.
>
>>It's a depleting source of energy. We ought to do a better job with it and
>>we can do far better job with our policies.
>
> This appears to a random statement of more irrelevance than usual.
Nope, it a well thought, pre-planned statement.
Obviously not intended to stimulate your brain stem.
Cheers