EMBPilot

sure.

a single blade of a GE90 is roughly $100,000
but that's technically composite, and you guys said that wasnt strong enough anyways...

Steve Weiner-Rennsport Systems

Stop by the shop sometime and I'll be happy to show you a bucketful of broken, cracked Mg fans. I see more of them every day as the "fleet" ages & accumulates miles.

71-3.0-911

Waiting impatiently for Steve's solution.

Ivan J

Here is a pricey fan alternative:

http://www.5thxs.com/product/cnc-mac...he-fan-milled/


I hope that Steve comes up with something more cost effective....

AOW162435

That's tasty! And very impressive CNC work.



Andreas

nine9six

They are indeed composite, and "we guys" didnt make that statement, Steve Weiner did. But if Steve said a composite blade would not withstand the long term durability requirements of a 3.6L Porsche motor, then it must be so.
Not taking anything away from Steve and his extensive Porsche knowledge, but you know as well as I, there are many here to challenge you, if even you suggest such crazy talk!

That being said, I was thinking more along the lines of an environmental turbine fan; but gotta admire the comparison...

So without going so big as a single blade/vane of a GE90 (whatever variant you intended), at our level, you'd still be in the high 10's of K dollars, milling a one off, from Ti alloy billet..

...and "they said it couldn't be done"

EMBPilot

I hope Steve can make one like the GE90. complete with the titanium leading edge. I'll buy two and send one to AOW to make a clock out of, then live in my car.

nine9six

Nope. There are durability issues with composites...My God man, have you any idea the long term stresses of a 3.6; let alone a turbo!?

I hear the airlines change em out every flight.

No need to live in your car, just take out a 2nd. ☺

KMASS993

Not sure I understand why you wouldn't just buy a new one from Porsche... Really not that expensive.

AOW162435

Gold.




Andreas

nine9six

FROM THE LINK...
How about that! Machined out of billet! Billet what? Pound cake?
I wonder if they are aware that a casting can be machined billet? Cast a hunk O' material and machine a part from it. Billet What a load of mktg manure.

Jlaa

BAHAHAHAHA. But srsly, c'mon guys. We need to up the game. Why rely on dated technology circa 1995? This GE90-inspired engine fan stuff will only nullify all the throttle response savings you got from the lightweight flywheel. The systems are supposed to be a matched set. You can't just run an LTW flywheel and expect to run a heavy GE90-inspired fan.

I mean geez, you might as well pair a set of brand new Monroes with those M033s. Heck, why don't you start using Mobil1 0w-30 just for grins?

You gotta run a lightweight cooling fan GEnx style. It needs to have 18-blade fan with a composite case --- and maybe use Titanium Aluminide.

EMBPilot

the only thing better than GEnx, would be a RED GEnx.
I bet steve is working on this as we speak.

bcameron59

Maybe it's a chunk of wood!


billet
noun bilˇlet
Definition of billet

1
a : a chunky piece of wood (as for firewood)
b obsolete : cudgel

2
a : a bar of metal
b : a piece of semifinished iron or steel nearly square in section made by rolling an ingot or bloom
c : a section of nonferrous metal ingot hot-worked by forging, rolling, or extrusion
d : a nonferrous casting suitable for rolling or extrusion

Quadcammer

And thats fine, but as a whole, all the magnesium fans on all the air cooled 964/993s produced don't seem to be producing rashes of failures. As a diligent owner I take a peek at my fan blades every time the lid is open. The cracking appears to be pretty obvious, but I'm sure occasionally you get one that breaks with no external signs.

I guess its a risk I'm willing to take.

Curious though, will you be making a turbo style fan?