Flywheel pin information for KH motor

[Todd Phenneger]

Eric,
  I'd say GO FOR IT.  I paid like $70 to get 5 lbs dropped from
a flywheel.  If you can go for it.  I think you'll be happier in
the long run.  Just dont forget to Balance the flywheel to the
motor when your done.
l8r
  Todd

--- Eric <eric_audi.ql at mindspring.com> wrote:
> --
> Well the flywheel is still at the machine shop.  I was talking
> to the owner and he said he could easily get 2 lbs or so out
> of it.  I may see how much $$ he wants to do that.  That might
> be a good compromise.  Either way I will be able to add
> another data point to the collective knowledge.
>
> Thanks for the info
> Eric
>
> Original message attached.
> --
> [ Converted text/html to text/plain ]
> Eric, I think the key here is that "heavier isn't better",a
> but the right
> weight flywheel will definitely wake up the motor.  I've run
> 11lb alum
> flywheels, the car is still very driveable, revs noticeably
> faster in lower
> gears (which is really nice is 2nd and 3rd, 1st doesn't really
> need to be any
> faster), turbo spoolup isn't noticeably different.  Some
> who've said they've
> removed about 3lbs from the outside of the flywheel are
> definitely on the
> right track too, the factory definitely went overboard with
> the weight of the
> flywheel on these cars.
> Javad
> In a message dated 8/6/2003 11:39:48 AM Pacific Standard Time,
> eric_audi.ql at mindspring.com writes:
>
> Yes I understand that every bit of inertia robs torque during
> acceralation.  I
> have never driven a turbo motor with lightened flywheels so
> you are correct I
> am working on theory in that regard. I have driven wild NA
> cars with aluminum
> flywheels and multi-disk small diameter clutches.  One
> accelerated so quick
> you had to leave your hand on the shift lever until you were
> in 3rd gear or
> you would slam the 9000 rpm readline.  VERY fun, but I think I
> would last
> about 1 day before I was in jail with that particular car.
> My point with the street turbo is the extra inertia of a stock
> flywheel,
> although not idea, does have a nice side effect of spooling
> the turbo faster.
> I am curious to those 4kqt owners out there with lightened
> flywheels.  From a
> rolling start of say 1500 rpm do you build full boost in first
> gear?  Javad I
> may be way off base as the wieght of the car may still be
> plenty to build
> boost with the low gears.  The 4kq is a lot heavier than other
> things I have
> built in the past.
> I do agree the JT flywheel certainly is a pig though.  Todd I
> got the same
> weight when I measured the flywheel.  I got another 13 lbs for
> the clutch and
> flywheel (on my $6 bathroom scale).  Worst of all a lot of the
> wieght is at
> the rim.  Worst of all my crank rang up at 60 lbs.
> Back on the original topic does anyone have ideas on the
> diameter of the pin?
> Luke said about 3/4" long.  I think I will just use what I
> have available for
> diameter since the sensor is just looking for a transient.  I
> just don't have
> any 5k parts to reference.
> Thanks
> Eric
>
>
> --
>


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