[s-cars] Benefits of a Lightweight Flywheel

[Cody Forbes]

I think the chatter depends more on disc material and usage style. I run a 7A flywheel and a 6-puck unsprung clutch disc on my daily driven 500hp 10v. One out of every like 40 starts if I'm daydreaming I get a bit of chatter. Well, actually it did, but it looks like the life span of a 6-puck is about 25,000 miles and mine is starting to give up so it now drives much smoother but anything over 1 bar in 5th or 1.5 in 4th and it gives up ;-).

-Cody Forbes

On Aug 19, 2012, at 9:04 PM, Steve Mills <s.b.mills at gmail.com> wrote:

> It's not all upside. The car will be a little bit harder to start off from
> a full stop without stalling the engine. The engine should be more
> responsive, but depending on other mods this may not be that noticeable.
> Also, lightweight flywheels are single mass, so you'll need a sprung clutch
> disk and will probably have some chatter on engagement.
> 
> I went with a stock 7A flywheel (roughly same weight as stock) and I had a
> bit of chatter, but no other issues.
> 
> Steve
> 
> On Sun, Aug 19, 2012 at 5:28 PM, Tony Curran <tony.curran at sympatico.ca>wrote:
> 
>> Hi folks,
>> 
>> 
>> 
>> I'm just about to have a new lightweight flywheel fitted (from 034) along
>> with a new clutch (South Bend). I was just wondering what the benefits
>> would
>> be. So I guess a lighter flywheel poses less resistance to the engine, ergo
>> less HP lost spinning up - more at the wheels. Also faster to spin down
>> too.
>> 
>> 
>> 
>> What other changes will I notice?
>> 
>> 
>> 
>> Thanks,
>> 
>> Tony
>> 
>> 96 S6.
>> 
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