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Lighter flywheel
by
nokivasara
on 20 Jan, 2008 08:07
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I´ve read a bunch of make-your-car-superfast-threads and I noticed a lot of you have lightened flywheels.
I thought that lighter flywheels on a diesel only would do harm, causing the engine to stall really easily.
Is there any point in lightening the flywheel on a 1.9 N/A without any other mods?
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#1
by
jimfoo
on 20 Jan, 2008 08:22
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Less rotating mass, especially on the crankshaft translates into faster acceleration as the engine can rev quicker, at least in lower gears.
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#2
by
bjornmk1
on 21 Jan, 2008 06:54
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although new here on this forum...
from own experience I can tell you:a lighter flywheel certanly has it's benefits
pro :the car accelerates quicker
contra :the enginebreak is less effective .
and in my opinion as long as the whole rotatingmass is balanced
there is no extra wear on the engine.
just my 2cts. :wink:
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#3
by
zukgod1
on 21 Jan, 2008 11:32
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If I could find one for my mk2 I'm building I would be all over it, heck I would have one lightned if I only knew where to have the material removed from..
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#4
by
Baselyne
on 21 Jan, 2008 15:05
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I was just going to ask that... where does this meterial come off of?
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#5
by
TedV
on 21 Jan, 2008 21:12
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Everywhere except the ring gear, bolt and disk area :wink: :lol:
lightened steel 210mm at
Euro Sport I believe that is where my "heavy" spare light flywheel came from. the asembly I put in to try is a touch over 15 lbs presure plate, disk, flyweel, TO plate and bolts.
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#6
by
OM617
on 21 Jan, 2008 23:42
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Lightened flywheel means less torque off idle but faster acceleration through the RPM range.
Weight should come from as close to the outside diameter diameter as possible. 1 pound from the outside diameter would be the same as several pounds closer to the center.
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#7
by
Baselyne
on 22 Jan, 2008 05:52
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so in theroy someone could defonetley take an machine their own?
i suppose any machine shop would'nt have a problem with cutting it down alittle here and there...
What would someone propose it would cost to have something like this done as appose to buying one from somewhere...
alum ones can't possibly last as long as the metal oE ones
what's your thoughts?
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#8
by
subsonic
on 22 Jan, 2008 07:24
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There is one careful word to remember, balance.
It's not a take some off here and there proposistion. It needs to be exact or you will have a fly wheel that is off balance and vibrates like crazy.
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#9
by
Gearhead
on 22 Jan, 2008 08:01
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The aluminum ones I've worked with would last longer than OE steel, theoretically. They had steel ring gears that were replaceable and steel friction plates that bolted to the aluminum flywheel that were replaceable as well. These weren't VWs, though. They were on RX-7s spun to 10,500 RPM.
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#10
by
jimfoo
on 22 Jan, 2008 08:44
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I have an aluminum GM/Ford one that has a replaceable ceramic type friction plate.
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#11
by
myke_w
on 22 Jan, 2008 13:03
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#12
by
Baselyne
on 22 Jan, 2008 21:43
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There seem to be some decent prices online there as well...
Im told the 16v an most all vw clutchs are the same is this true?
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#13
by
myke_w
on 22 Jan, 2008 23:47
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the tranny you are using determines the clutch...
the 16v and ABA 2.0 motors use a tranny with a bigger spline on the main shaft, the hot setup is to get a 16v pressure plate and a good 8v clutch disc.
the splines on the main shaft on ALL other 020 tranny's are the same size.
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#14
by
Baselyne
on 23 Jan, 2008 05:55
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So the tranny to have is most likly the larger spline shaft version?
Im guessing that using a gasser tranny would be a better option?