balancing.

[mr.utility at highstream.net (David Utley)]

Dan,
    Is this the note that you were talking about?  About which flywheel
would save you mileage?  I forgot what in the hell I was looking for....  :(

David

-----Original Message-----
From: scirocco-l-bounces@scirocco.org
[mailto:scirocco-l-bounces@scirocco.org]On Behalf Of
mr.utility@highstream.net
Sent: Friday, October 31, 2003 9:59 AM
To: Dan Bubb
Cc: Dan Smith; scirocco-l@scirocco.org
Subject: Re: balancing.

Dan,

  It takes energy, to save enregy...


   As you are cruising on the highway, it takes less effort to stay at a
constant speed with a stock flywheel, because you have built-up inertia...
Inertia is defined as the resistance to change it's present state of
motion...  In this case, if the flywheel is spun at 4K, it is going to
resist
a change in speed, either up or down, IF it has more weight to it, yes? Then
that inertia will in fact save you more mpg, at a cost of mph...

   Do you know how heavy a Diesel flywheel is in comparison to a gas
flywheel?  Part of the reason is that they have a higher mpg is because of
the
higher inertia they have once up to speed...

  The reasons you cited for having weight on the flywheel are good reasons
as
well, but they are not the only ones...

David

PS  And while I read the Vortex quite a bit, I weigh that against hands-on
experience, as well as reading good technical sources (read that
as 'accredited'), as well as long conversations with a good friend of 13
years
who has been a mechanic for almost 40 years...  The one thing I will promise
each and every one of you is if you can prove me wrong, I will admit it,
period...  I don't know it all, nor do I pretend to (hopefully) :-)  I can
only ask that if you do not agree/understand, please ask questions...  I
have
not insulted anyone here, nor will I throw jabs at someone, even if I
disagree, but especially if I do not understand...  I am here to learn, and
to
share.  I thought that was that this list was for...  Did I misundestand?

> So, reducing flywheel weight will make your engine idle a little rougher
and
> make you pay a little more attention moving off from a stop.

Following that line of thought, if you make the block lighter, you will also
gain a better hp/lb ratio, therefore improve acceleration, with decreased
longevity of the engine...  Is that a worthwhile change as well then?  It
all
depends on what you are building the car for...  Race car = take all the
weight off that you can, versus a street car = imporve what is there while
working within the original framework VW provided us...


   I did not put on my asbestos undies today, so if you wish to flame me,
please be gentle...  :-)

David



>   ----- Original Message -----
>   From: mr.utility@highstream.net
>   To: Dan Smith
>   Cc: scirocco-l@scirocco.org
>   Sent: Thursday, October 30, 2003 6:39 PM
>   Subject: Re: balancing.
>
>
>   As long as you do not have less than 9lbs., you should be fine...
Highway
> mpg
>   may suffer some, as that is why it is there in the first place, but
beyond
>
>   that you should not hav any real trouble...
>
>   David
>


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