Hey all, I am in process of rebuilding my engine, going turbo, and I bought a balanced FD rotating assembly to be able to run a little bit higher boost that what my NA rotors would have been. I got the engine built, but now in the process of measuring end play and found several issues that I didn't know about. First, the shim that goes on the front counterweight of the FD parts is larger than the one from the FC. Also, when I tighten the front eccentric shaft bolt, the assembly binds up. I have torqued the rear nut to the proper spec, and am going to the middle of the front spec. I know that I'm going to need new shims, and possibly new torrington bearings, but would I need a new front stationary gear as well? are these different than a S5 front stationary gear? I hope this makes sense and if anyone has any different questions don't hesitate to ask!

 

the FD used a larger thrust bearing (OD). you need to check but i think you could use either the FC or FD setup, but mixing won't work.
the FD spacer is different too

 

Ok I gotcha about the thrust bearing and the spacer, but do you know if the stationary gear is different to accept these parts?

 

it is, but i think the FD stuff will fit? if not it could be machined, or you could use the FD gear, or just use the FC thrust stuff.
the FD stuff is better, but arguably it got upgraded because of the pull type clutch.