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Lightened flywheel
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Topic: Lightened flywheel (Read 4169 times)
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rodney3010
Lapsed
Senior Member
Posts: 154
Lightened flywheel
«
on:
25 November, 2011, 09:07:21 PM »
Whilst trawling the net I've come across an advert for the above. I can accept the weight saving but am unsure of the other benefits. Can anyone help out? Why bother (bearing in mind the price tag of £330ish)?
Rodders
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Jai Sharma
Megaposter
Posts: 475
Re: Lightened flywheel
«
Reply #1 on:
25 November, 2011, 10:07:30 PM »
No Link that I can see, but generally it is not so much the reduction in overall car weight as the reduction in fast moving mass that is the main benefit. In other words you have to speed up the flywheel to (say) 6000 rpm and then do it all over again in the next gear.
So the lighter it is the easier it is.
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nistri
Megaposter
Posts: 564
Re: Lightened flywheel
«
Reply #2 on:
28 November, 2011, 07:51:00 AM »
Idling can become lumpy with a lightened flywheel, Andrea
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Andrea Nistri
Ardea S2
Appia S2
Fulvia GTE
Fulvia Sport 1.3 S
Fulvia Montecarlo
Fulvia Coupe 1.3 S
DavidLaver
Permanent resident
Posts: 4388
Re: Lightened flywheel
«
Reply #3 on:
28 November, 2011, 10:04:43 AM »
Blips the revs up quicker for downshifts.
When given a prod warming up it goes "wah wah" rather than "veeeerrrrroooom verrrroooom".
"Lumpy idle" often then means you then need a much faster idle. If you sit in traffic a lot then that's tedious.
David
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David Laver, Lewisham.
ColinMarr
Permanent resident
Posts: 1660
Re: Lightened flywheel
«
Reply #4 on:
28 November, 2011, 12:55:07 PM »
With an Aurelia, which has a remote clutch in the transaxle (and Flaminia too), the flywheel can be lightened by drilling holes in it – see photo below. And with six cylinders to smooth it out, the tick-over was fine.
Colin
Aurelia parts 88.jpg
(309.79 KB, 1809x1274 - viewed 530 times.)
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davidwheeler
Permanent resident
Posts: 1485
Re: Lightened flywheel
«
Reply #5 on:
04 December, 2011, 02:32:50 PM »
Balance in narrow V4s is tricky and may be upset by changing the mass of the flywheel. I don't know about the Fulvia but earlier V4 engine flywheels were individually balanced with their cranks. I doubt if it is worth it unless you are going onto the track.
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David Wheeler. Lambdas, Aprilia, Fulvia Sport.(formerly Appia and Thema as well).
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