RS4 Flywheel machining. The original flywheel weights 12 kg.

I bought this used parts from Ebay and the surfaces needed refreshing, and in the same time I decided to remove some weight from the FW.

RS4_pressure_plate.jpg (182278 bytes)RS4_flywheel.jpg (172510 bytes)Making_the_flyheel_adapter.jpg (165911 bytes)

I took a tube that fits inside in the back of the FW and then cutted a flange where the FW is attatched. 

Making_the_flyheel_adapter2.jpg (131451 bytes)FW_adapter_bolted_on.jpg (150089 bytes)Machining _the_fw_surface.jpg (156009 bytes)

Then I welded the flange to the tube and machined it straight. 

fw_surface_ready.jpg (189773 bytes)The surface is now like new, and the flywheel is slightly lighter :)

flywheel_opened.jpg (190096 bytes)flywheel_opened2.jpg (165645 bytes)fw_front.jpg (135525 bytes)

Here the flywheel is opened half, and the spring plate is still inside. The front disk is 3 cm thick and it weights 4 kg. The back is also 4 kg, as is the dampener system.

machining_the_spring_plate.jpg (123422 bytes)dampener_spring_plate_open.jpg (231809 bytes)dampener_spring_plate_open2.jpg (195755 bytes)fw_all_parts_removed.jpg (188722 bytes)

 I wanted to remove the dual mass system, and machined the spring plate open and removed all duall mass system parts. Now the flywheel parts weigths 8kg, but I am considering to remove the whole back plate and move the toothed ring and the pulse ring to the front disk. I'm just not sure if it is strong enough stand the starting forces.

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