[DeTomaso] Aluminum Flywheels

[Will Kooiman]

The pressure plate is pretty heavy.  I weighed all of my parts a few years
back.  The net of Fidanza + diaphragm clutch/pressure plate was less than
stock, but not that much.

I imagine the effect would be more pronounced in something like drag
racing, where you launch better with a heavier flywheel.  But for my
street driving, it really didn¹t make a difference - no more bucking or
snorting.  I have to do that myself.

Emiliano - I bought mine from one of the Mustang stores - probably
Mustangs Unlimited.  I have also seen them on ebay, which should be okay,
since it would be new either way.
--
Will





On 5/7/14 5:44 AM, "Charles McCall" <charlesmccall at gmail.com> wrote:

>   The bucking and snorting that MIke mentions as a downside to an
>   Aluminum flywheel might be more pronounced with a super-lightweight
>   unit, but I have not noticed any decrease in driveability with my
>   Fidanza flywheel.
>   A
>   I also didn't notice a huge difference in speed of revving. Perhaps an
>   even lighter aluminum unit would be more noticeable, and would also
>   introduce difficulty in driveability since the two things are directly
>   related.
>
>   On Wed, May 7, 2014 at 5:38 AM, <[1]MikeLDrew at aol.com> wrote:
>
>     A  A In a message dated 5/6/14 16 18 6, [2]mghibli7 at hotmail.com
>     writes:
>     A  A  A What's the general consensus on Aluminum Flywheels? Are they
>     the way
>     A  A  A to go? Any drawbacks?
>     A  A >>>Like anything else that's "performance", they have
>     advantages and
>     A  A drawbacks.
>     A  A Engines have flywheels for a reason. A They exist to dampen the
>     pulses
>     A  A from the ignition cycle, and also to conserve rotational energy
>     so it
>     A  A can be used when it's needed. A When you are setting off from a
>     stop,
>     A  A that conserved energy is what lets the car start rolling. A A
>     car with
>     A  A no flywheel would be impossible to drive--the engine would
>     stall the
>     A  A moment you tried to ease the clutch out.
>     A  A So, flywheel = good.
>     A  A The problem with a flywheel is that it requires a lot of power
>     (or
>     A  A torque, if you prefer) to accelerate it. A When you are at 2000
>     rpm and
>     A  A you put your foot to the floor, the engine is trying to speed
>     up. A Part
>     A  A of what is holding it back is the aerodynamic drag, and the
>     flywheel
>     A  A effect of the wheels and tires, but part of it is the engine
>     flywheel
>     A  A itself. A It 'hurts' you when you are trying to accelerate the
>     engine.
>     A  A A lighter-than-stock flywheel (whether it's aluminum or
>     lightened
>     A  A steel) will allow the engine to accelerate more quickly, which
>     in turn
>     A  A will allow the car to accelerate more quickly. A It will also
>     make the
>     A  A car slightly more difficult to drive gently, may make it
>     slightly more
>     A  A difficult to downshift (at least until you get used to it), and
>     will be
>     A  A considerably more difficult to drive in traffic. A Whereas
>     before, if
>     A  A you were creeping along in a line of traffic, you could let
>     your foot
>     A  A off the clutch and just loaf along at 5 mph in first gear, now
>     the car
>     A  A will buck and snort, and you will have to constantly dip the
>     clutch,
>     A  A partially engage/slip the clutch, dip the clutch etc.
>     A  A So it really depends on how you drive the car. A If traffic is
>     no
>     A  A concern, you might really like it. A If you want your Pantera
>     to behave
>     A  A like a regular car, you might want to save the $500 plus
>     balancing
>     A  A costs and stick with what you've got.
>     A  A  A >If they are recommended, whose are you using and how many
>     miles do
>     A  A  A you have on it?
>     A  A >>>I don't know what kind of aluminum flywheel I have--I
>     literally
>     A  A found it in my parts room one day and had no idea how it got
>     there!
>     A  A Apparently it came to me in a huge stash of other parts and I
>     simply
>     A  A failed to notice it, or thought it was a stock flywheel at the
>     time.
>     A  A When I had my engine rebuilt, I switched. A Since the entire
>     engine was
>     A  A changed, I can't tell you the specific effect the flywheel has
>     had.
>     A  A The old engine with the iron was a fair bit more tractable than
>     the new
>     A  A one, but it also had half as much horsepower.
>     A  A Mike
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>References
>
>   1. mailto:MikeLDrew at aol.com
>   2. mailto:mghibli7 at hotmail.com
>   3. mailto:DeTomaso at poca.com
>   4. http://poca.com/mailman/listinfo/detomaso_poca.com
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