Am planning a clutch swap this weekend in my '91 S5 Tii and tonight was just making sure I had everything. Clutch: check, lightened flywheel: check, bearings: check. Then I realise that lightened flywheels need a counterweight for the flywheel. Remembered that the previous owner of the car said his butt dyno and knowledge of having a few FCs before said that there could very well be a lightened flywheel in there, but he couldn't say for sure as it would have been put there by the previous owner.

I dropped under the car, whipped off the inspection plate and took a pic. I've no real idea what I'm looking for, but you can see the flywheel in it. Apologies if this is a dumb question but does it look like a stock or aftermarket flywheel to you? If I need to clean it all up, let me know.

Cheers in advance

 

Stocker i bet.

 

that looks like the stock fly wheel buddy!!

 

Damn you guys and your bad news! Looks like a desperate search for a counterweight in the next 48 hours then. Think this has been discussed before, but an FD counterweight will work with an S5 Tii, won't it?

 

Yes, the S5 Tii/Cosmo/REW all used the same 9.0:1 rotors. Finding one from a 20b or a 13BRE might be easier over there for you.

 

Thanks for the heads-up. Will take a look at the junkyards and see what I can find.

 

I have a auto counter weight in my basement. Not sure if its S4 or S5. Im going to check on mazdatrix in a second.

EDIT: Looks to be S4. Good luck!