Not sure why you would need more than the AL bell housing? No strip, under 300 HP, under 5000 RPM.

Sounds like a waste òf time and money to me I also have to question the aluminium flywheel as well in this application. I would think a steel flywheel with a counterweight pressure plate and iron disc would do the trick.
Gus

You can use a trans blanket,would be less expensive.

Do it, test it to failure. Get an sfi rating, go into business and become filthy rich by giving them a 2 year from date of manufacture expiration.

Unless you use the 3.09:1 box, or a very high (numerical) axle, the light flywheel will require you to drive it like a 2-stroke. Not fun in traffic.

Take pics as you go. I'd like to see what your up to.

All I can add is if you blow a flywheel up I don't think a little carbon is going to slow it down.

Not the first time I have heard that before. Alum flywheel is thinking because its a 76?lb crank, no drar launch needed, and it may see some AutoX, hence my alum thinking.

So the application is a turbo slant six, under 300hp, never will see the drag strip, likely never will get north of 5k RPM. a QT scattershield from Summit is nearly $800. I will likely get a custom SFI rated alum FW/pressure plate set-up. I have an alum OEM bellhousing. CF/Kevlar is not a hassle for me. Anybody think adding say a 1/4"? outside/bonded Kevlar/CF to the complete outside of the OEM housing make any sense? Has to be better then nothing. Lot cheaper then the QT, and then spend the savings on the FW/clutch. Well?

Another option would be to get a copy of the adapter plate Mark Goodman used to make and then find a used small block shield. That also allows you to use the 130 tooth flywheel, but puts the starter in the low position.

Lou (Dart 270) on the Slant board has the one I had made. I think he would loan it out so you could copy it.

Bullet proof vests don't use just a handful of layers. I don't know how much your supplies would cost but 30+ layers of kevlar plus epoxy around a bell means material costs beyond $100 for me. So I think the trans blanket suggestion was a good one, unless you really want to get the experience.

If you worked for an exotic car mfr (front engine/trans) and they wanted something more classy than a blanket I think this is a really good idea. You could even take it to the firing range and put a small caliber bullet through it as a simulation. I wouldn't bother with the carbon fiber.

I hoping I can size/pre cut my fabric to prevent as much waste as possible. You are correct, enough layers to do the job will certaintly be more then a handfull.

Your comment on bypassing the CF instills me to ask your reasoning. My thinking, the OEM housing is over 1/4"+- alum, my first layers would be CF, as increasing the overall strength of the alum housing from failure, would be first goal in the event of an explosion, CF is close to stiffness of alum, plus it would likely slightly dampen the alum, and to a lessor degree, maybe protect the following added layers of kelvar, from any arising sharp edges of cracked/broken alum protruding outward. The problem with that scenario is, most of the CF I has seen that failed, has its own sharp edges. My understanding of Kelvar, besides its general robust strength, is its resistant to tearing/cutting, but it can be cut, so sharp edges are to be avoided. Then I was thinking another outside final layer again of CF, since the outside layer would be the first to fail from stress, in an explosion. I also pondered adding a thin form-able layer inside of a SS liner. I'm also thinking I'm talking myself into calling Summit. But that wouldn't be any fun.


PS "SportF", this ever saw the drag strip or higher powers, this idea would not be considered, and I cannot see it can do any harm, other then my wallet, nor am I trying to mislead others to follow this path.
"Poly", reinforcing the tunnel, would not protect nearby fuel lines, brake lines, tires, bystandersrs, etc

I have said this many times before, if you had seen what happened, and what was left of a carbon fiber shield from a tranny that blew up in Eddyville in '13, you wouldn't even think of anything fiber. He almost lost a foot! That shield did NOTHING. Let me repeat that, it did nothing.

The way every body tries to fit a trans blanket, they don't work either. The trick is to put it over the trans, and wrap the ends around the torsion bars. You may need one simple brace to keep it off the headers on the driver side.

Think about this, at the track, I bet flywheels have killed more people than you'd would ever care to hear about. And some of those were in the stands.

Best of luck to you.

Bullet proof vests don't use just a handful of layers. I don't know how much your supplies would cost but 30+ layers of kevlar plus epoxy around a bell means material costs beyond $100 for me. So I think the trans blanket suggestion was a good one, unless you really want to get the experience.

If you worked for an exotic car mfr (front engine/trans) and they wanted something more classy than a blanket I think this is a really good idea. You could even take it to the firing range and put a small caliber bullet through it as a simulation. I wouldn't bother with the carbon fiber.