Flywheel weight

2.7 V6 30v biturbo - 251bhp
2.7 V6 30v biturbo - 261bhp
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dazzer
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Flywheel weight

Post by dazzer » Sat Feb 16, 2008 5:57 pm

Anyone know what the standard flywheel weighs please?

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Doug_S2
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RE: Flywheel weight

Post by Doug_S2 » Sat Feb 16, 2008 8:43 pm

12.5 Kgs
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

http://www.MRCtuning.com
http://www.facebook.com/mrctuning

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dazzer
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Re: RE: Flywheel weight

Post by dazzer » Sun Feb 17, 2008 12:58 am

Doug_S2 wrote:12.5 Kgs
Thanks Doug.

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RE: Re: RE: Flywheel weight

Post by DavidT » Sun Feb 17, 2008 12:00 pm

And the lightened ones are around 6-7 kgs ?

Also, what do we think the gains are? I was told 20-30 ft/lbs of torque ?

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dazzer
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Post by dazzer » Sun Feb 17, 2008 3:41 pm

Anyone got any sources. Did you send the standard one off for lightening and return, or was it an exchange, or a completely bespoke flywheel, possibly requiring a non OEM clutch set-up.

Can anyone recommend a good set-up. I would prefer a solution that's not too intrusive (chatter or humming).

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Post by BRETTCOLLINS » Sun Feb 17, 2008 5:28 pm

Tanoga Single mass lighten flywheel with a RS4 clutch. Run this for over 2 years.
MING BLUE AUDI S4
Car is on Lock down

506.9 BHP @ 6.020 RPM
445.0 WHP @ 5.981 RPM
481.5 IBFT @ 4.976 RPM

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Post by DavidT » Sun Feb 17, 2008 8:06 pm

The latter Darren, I'm the same as Brett. Seems to work a treat. PM tanoga on here for details.

The gear 'chatter' around 2k rpm does not bother me. Come & have another drive if you want mate :)

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dazzer
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Post by dazzer » Sun Feb 17, 2008 8:24 pm

Thanks chaps.

David, I'll use any excuse to have a blast in your car. It gives me an excellent benchmark of where my car needs to be.

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okkim
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Post by okkim » Sun Feb 17, 2008 8:26 pm

Fidanza might be cheaper. It weighs about 5.5 kg. It is ok, only a little chatter below ~2000 rpm. Take off is very easy.

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Post by MarkB » Sun Feb 17, 2008 8:56 pm

I'd like to get a slightly lighter clutch but for me it would drive me nuts hearing the gear chatter.

Any other options?
Mark

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GrahamS4
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Post by GrahamS4 » Sun Feb 17, 2008 9:10 pm

Do they all chatter? How refined do they get?

What are the gains typically?

What sort of cost are we talking?

What is the effort to fit and what sort of additional effort are we talking if you were already replacing the clutch?

Anyone had a lightweight flywheel on a K03 S4?
Present: 2010 Ice silver B8 S4 s-tronic saloon (standard)
Past: 1998 Agate grey B5 S4 saloon (MRC tuned)
Hers: 2011 Volcano red 8P A3 Sportback 2.0 TDI 170 sport quattro

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Post by okkim » Sun Feb 17, 2008 9:21 pm

I have installed a few Fidanzas. The engine revs more easily, but I haven't noticed so big difference when driving (haven't done any logging, just normal driving). Of course it helps, when it's more than halve the weight of the original.

It doesn't give any more power or torque, it just "releases" it from the engine. (if you don't change the boost or timing, how could it anyway...?)

One Fidanza is now on eBay, 165£. Those are quite cheap, but those work ok!

Installation is quite easy when the clutch is out, but those bolts have to damn tight when installing. You just need some muscle ;)

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dazzer
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Post by dazzer » Sun Feb 17, 2008 9:45 pm

Having decided to go the K04 route I now have a slight obsession with lag and response so I am looking at reducing mass where possible, and within a budget that doesn't make me whince too much.

I have been looking at the 034motorsport steel flywheel that comes in at 15lbs. It's a couple of lbs heavier than the aluminium wheel but should suffer less chatter. However it does not work with an RS4 PP and would requires a Sachs or Spec alternative. We are talking about a grand landed cost :bash:

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Post by BRETTCOLLINS » Mon Feb 18, 2008 10:21 am

For me the Tanoga flywheel works well. running one of Dougs 6 paddle clutchs with it now.
MING BLUE AUDI S4
Car is on Lock down

506.9 BHP @ 6.020 RPM
445.0 WHP @ 5.981 RPM
481.5 IBFT @ 4.976 RPM

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Post by DavidT » Mon Feb 18, 2008 10:32 am

Blimey Dazzer, that sounds like big money to me, the Tanoga/RS4 Clutch route would be nearer half that.

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