Can someone recommend a 6 bolt AWD STEEL flywheel with a replaceable friction surface

[dsatchell]

I'm looking for a flywheel for my build but I'm having problems finding exactly what I want. I've looked at several on the internet but the descriptions are almost always a little vague or just flat leave out specific info.

What I need is a 6-bolt AWD flywheel.

What I want in order of desirability is:
1. replaceable friction surface
2. steel or moly construction
3. lightened

I will be pushing 500-600 HP with a twin disc clutch with a 2.4L, an HX40, and nitrous so I want steel.

Anybody know of a flywheel that meets all these requirements?

 

[92AWDHX40]

Have you called around to different manufacturers of clutches, and possible goals for you car , and set up?

 

[crimsondragon]

Fidanza is what comes to mind.

Fidanza Billet Steel Flywheel (DSM) - Modern Automotive Performance

Is there any reason why an aluminum flywheel won't work for you?

 

[bastarddsm]

Fidanza is what comes to mind.

Fidanza Billet Steel Flywheel (DSM) - Modern Automotive Performance

Is there any reason why an aluminum flywheel won't work for you?

When you play hard and get heat in the clutch the friction surface can warp, as well as the flywheel itself. Everyone recommends a steel flywheel for use with an aggressive clutch. I wasn't aware of a steel flywheel with a removable friction surface. I'd think the removable friction steel one would warp just like an aluminum one.

 

[bmoha7321]

the replaceable friction surface is the same whether the flywheel is aluminum or steel.

 

[99gst_racer]

Which twin disk are you running?

For the record, I've never seen a flywheel with a replaceable friction surface that works with a twin disc.

 

[bmoha7321]

hah! Right you are! I knew something was wrong about this post but wasn't making the connection. I should have remembered this when i was looking at purchasing a twin. The clutchpack on a twin is much smaller than on a single. You're friction surfaces aren't going to anywhere near close to mating up. Doesn't work. You have to buy a twin specific flywheel.

 

[dsatchell]

Well I will have to verify twin disc issue. Not saying I don't believe you, it's just that this is the first time that I have heard of this and it would seriously affect my plans. I was looking at the Fidanza but I was wondering if there were other options.

The replaceable friction surface is a must have for me mainly because I've read too much about hot spots. A lot of people think that you can just run a flywheel through a lathe and clean it up and your back in business but that only works for very light hot spots. If you have a large occurrence of or sizeable hotspots then the chances are that you should just get a new flywheel. Check out Perfection Clutch - No Core New Flywheel Program and Flywheel Hot Spots and Chatter - TechConnect Online News Blog

 

[bmoha7321]

I'm familiar with hotspots. I run a ACT cro moly Streetlite flywheel. Works for me.

 

[99gst_racer]

Yeah, one of the major benefits of a twin disc is that it's a smaller diameter set-up than that of the factory sized clutch. Less weight overall and more toward the center. But because of this smaller diameter, the cover has a smaller bolt pattern where it bolts to the flywheel. As such, the friction surface is moved inward as well. You definitely cannot interchange flywheels for regular clutches and twin-discs.

I wouldn't be too concerned with hot spots though. It's really not much of an issue. It would take some serious hot spots to have any affect on engagement or longevity.

Here you can see the differences between the two. Notice the bolt pattern and friction surface moved inward on the twin disc flywheel.

Stock type:

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Twin disc:

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[Gus@RRE]

If your that worried about hot sports going through the entire chromoly flywheel, how is it that a thin friction surface would be any better? Back on topic, i don't believe any manufacturer has this type of flywheel for a twin disc. Twin discs are usually sold as a package deal with their own flywheel.