From: jlittler on
On Feb 9, 1:09 pm, Iain Chalmers <bigi...(a)mightymedia.com.au> wrote:
> In article <C1F11DF8.11BAB%hbaj2...(a)aapt.net.au>,
> > > That's not going to make much of a dent on Nev's 5.7L V8, but it's over
> > > 10% of the total max output of a Deux Chevaux.
>
> > 10 per cent?
>
> Do you know what a Deux Chevaux is? Do you know why they call it that?
> Do you know how many watts 2hp is?

errm in line with the definition of a poofteenth, you've unfortunately
been sucked in by a common misconception

http://en.wikipedia.org/wiki/Deux_Chevaux

The 2CV had 2 *TAX HP* - the bottom of the range 375cc twin produced
about 9HP (ie BHP/DIN).

Both England and France had tax HP ratings around this period - they
were basically statutory calculations and led to some odd engine
designs to minimise tax in England (long stroke small bore were
cheaper than short stroke motors of the same capacity)

http://en.wikipedia.org/wiki/Tax_horsepower

JL

From: Iain Chalmers on
In article <sZAyh.4533$sd2.1550(a)news-server.bigpond.net.au>,
"Boxer" <someone(a)nowhere.com> wrote:

> "Iain Chalmers" <bigiain(a)mightymedia.com.au> wrote in message
> news:bigiain-460A5C.18160108022007(a)nasal.pacific.net.au...

> > Can I get you to do another experiment? I'm wondering if 800rpm is too
> > slow for the alternator to be developing all the required output, and
> > what you're seeing is the headlights drawing the battery charge down
> > rather then being powered by the engine. I'd be interested to know if
> > you see any fuel flow difference in the diagnostics if you hold the
> > engine at a slightly higher speed when you switch the lights on and off
> > - maybe up at 2500 or 3000 rpm?
> >
> > curious-big
>
> The fuel computer on the Holden 5.7 litre is not very accurate so it is
> unlikely to provide the information required.

I wonder... I'm sure you know more about how well it's calibrated then
me, but I suspect it's probably got enough resolution to see 1% changes
in the flow rate even if the numbers it displays aren't all that
relevant - I _think_ the fuel injection system would be representing a
real world flow rate increase of 1% when the display changes from 10.0
to 10.1 at a constant speed, even it it's not actually flowing 10L/hour
(or whatever) at the time...

big

--
"Everything you love, everything meaningful with depth and history,
all passionate authentic experiences will be appropriated, mishandled,
watered down, cheapened, repackaged, marketed and sold to the people
you hate." Mr Jalopy quoting Hooptyrides (on jalopyjunktown.com)
From: Iain Chalmers on
In article <1170991916.236141.278030(a)l53g2000cwa.googlegroups.com>,
"jlittler(a)my-deja.com" <jlittler(a)my-deja.com> wrote:

> On Feb 9, 1:09 pm, Iain Chalmers <bigi...(a)mightymedia.com.au> wrote:
> > In article <C1F11DF8.11BAB%hbaj2...(a)aapt.net.au>,
> > > > That's not going to make much of a dent on Nev's 5.7L V8, but it's over
> > > > 10% of the total max output of a Deux Chevaux.
> >
> > > 10 per cent?
> >
> > Do you know what a Deux Chevaux is? Do you know why they call it that?
> > Do you know how many watts 2hp is?
>
> errm in line with the definition of a poofteenth, you've unfortunately
> been sucked in by a common misconception

Fair enough, so maybe it's only 3 and a bit percent - my point still
stands (and if it was anyone other than disingenous-hammo arguing wiooth
me I'd consider apologising...)

;-)

big

--
"Everything you love, everything meaningful with depth and history,
all passionate authentic experiences will be appropriated, mishandled,
watered down, cheapened, repackaged, marketed and sold to the people
you hate." Mr Jalopy quoting Hooptyrides (on jalopyjunktown.com)
From: atec "atec77 on
jlittler(a)my-deja.com wrote:
> On Feb 9, 12:58 am, atec <"atec77 "@hotmail.com> wrote:
>> Andrew McKenna wrote:
>>> sharkey wrote:
>>>> Andrew McKenna <NOcmorSPAM3...(a)NObigpond.SPAMnet.au> wrote:
>>>>> I think your critics are thinking of their bicycles with dynamo
>>>>> powered headlights :-) More electrical load might make you discover
>>>>> that you need to push harder to achieve the same results but there's
>>>>> no way the dynamo itself gets harder to spin.
>>>> What? You need to push harder to spin it but it doesn't get harder to
>>>> spin?
>>>> -----sharks
>>> No, you need to push harder to get the result if you add electrical
>>> load. It cannot possibly get harder to spin.
>> Now thats wrong in so many ways .
>
> Actually he's dead right if you read it carefully - typical engineer's
> wording though. They never speak english.
>
> The MECHANICAL load is unchanged IE the effort to physically spin the
> metallicy bits around will be unchanged regardless of electrical load.
The way I understand it that statement is wrong , mechanical input
required to generate electrical energy bears relationships to each
other, more electrical energy required means more drive is required to
overcome the resistance to turning .A change in turning momentum is
proportional to energy required.
>
> HOWEVER if you then add the bit you guys are busy arguing about -
> which strictly speaking isn't mechanical load as such within the
> alternator/dynamo/generator (although it will be EXTERNAL to the
> system) you are adding additional torque requirements to overcome the
> additional physical resistance to turning created by the electrical
> field.
>
> JL
> (not a 100% sure I've turned that into English successfully, it's
> tough being a translator ;-)
>
>
>
From: jlittler on
On Feb 9, 2:45 pm, Iain Chalmers <bigi...(a)mightymedia.com.au> wrote:
> In article <1170991916.236141.278...(a)l53g2000cwa.googlegroups.com>,
>
> "jlitt...(a)my-deja.com" <jlitt...(a)my-deja.com> wrote:
> > On Feb 9, 1:09 pm, Iain Chalmers <bigi...(a)mightymedia.com.au> wrote:
> > > In article <C1F11DF8.11BAB%hbaj2...(a)aapt.net.au>,
> > > > > That's not going to make much of a dent on Nev's 5.7L V8, but it's over
> > > > > 10% of the total max output of a Deux Chevaux.
>
> > > > 10 per cent?
>
> > > Do you know what a Deux Chevaux is? Do you know why they call it that?
> > > Do you know how many watts 2hp is?
>
> > errm in line with the definition of a poofteenth, you've unfortunately
> > been sucked in by a common misconception
>
> Fair enough, so maybe it's only 3 and a bit percent - my point still
> stands (and if it was anyone other than disingenous-hammo arguing wiooth
> me I'd consider apologising...)

Point ! Point well made.

JL

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