Carl Fausett

I'm getting closer on this one - just wanted to let you guys know what we are working on.

I have had an aluminum flywheel with replaceable steel insert for some time now for the twin-disk clutch cars. Works well.

Recently, had to find a replacement flywheel for a single-disk 32v motor... what a pain! They seem to be in short supply and hard to find, much less trying to find a good used one.

So I started this project - to develop a new billet aluminum flywheel for the single-disk cars. It has been challenging.

The pics below show how far we have gotten thus far... note the crank reference sensor ring had to be re-sized internally, the flywheel is designed with a shelf to contain it, we have had other clearance issues. Getting close now.

This one is going back onto the 91 GT for another trial.

Carl Fausett

Installed.

928porschepatrick

Nice piece of art Carl, how about the weight savings

finally!

NICE! I too am curious as to the weight differences and for what years this would be for..

Carl Fausett

Both. It is held in position with a thermal shrink-fit, and 4 locating pins.

Looking at the last picture "installed" - I can see one of the locating pins in the timing ring straight up from the slave cylinder.

This method of attaching the steel timing ring to the aluminum flywheel is not new for us, been doing it since 2009 on twin-disk aluminum flywheels that we make that are fitted with LH-Jetronic systems or Electromotive systems. So we have some years and track time doing it this way and know that it works well.

Carl Fausett

Update: The 928 is out and running around with the aluminum flywheel in it, no issues. This car has a Stage II SC kit on it, and a GT2 clutch pack, so we are giving the flywheel a good workout. More stress than the average 928 will give it. :-)

Courtshark

Is there any kind of target availability date/waitlist to join?

Carl Fausett

I just ordered up the materials I need to make 10 of them yesterday. When they get listed on our site, they will be at $669 each.

This is $140 more than the twin-disk aluminum flywheel we have here: http://www.928motorsports.com/parts/...umflywheel.php

There is more work in them for us than the twin-disk model because we have two extra operations to perform to mount and secure the timing rings to the flywheel, including milling the factory timing ring to change its inner diameter.

But if you want to pre-order, I will give Rennlisters a break at $600 even. Email me or call Gretchen at 920-485-0928 to order.