[DeTomaso] Aluminum Flywheels
cengles at cox.net
cengles at cox.net
Wed May 7 09:47:41 EDT 2014
Dear Emiliano,
I agree with Will. One Pantera has 485 HP and a Fidanza
aluminum flywheel. The other Pantera has 385 hp and a stock flywheel.
The stock flywheel is no problem to drive. The aluminum flywheel is
not finicky. It does not buck, cough, etc. In city driving I perceive
that it is a tiny bit different that the stock flywheel.
The engine that I am currently building will split the
difference. It will use a lightweight steel flywheel that is about
midway between the weight of the stock and Fidanza units. Perhaps the
best of both: lesser cost than aluminum and lesser weight than stock.
By the way, the Fidanza has at least 10k miles and no
problems.
Warmest regards, Chuck Engles
On Wed, May 7, 2014 at 7:08 AM, Will Kooiman wrote:
> 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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