Flywheel bolt torque?
 

So this little beauty arrived for me today but i can't find what to torque the bolts going into the crank should be tightened to. Anyone know?

Did you order the complete kit?


http://www.toda-racing.co.jp/en/prod...heel/fa20.html

Mw

Just the flywheel. I have been told a few times that the TODA clutch is just a rebadged exedy unit. Plus i aren't planning on going FI so the std clutch should be fine for me :thumbsup:

They're plastic region bolts so don't reuse the old ones. I'd wager 50nm +90 +45degrees would be sufficient.

Good to know. Do ARP make replacements?

Not sure.

Do these lightweight Flywheels come balanced or do they need to be balanced by a machine shop prior to installing? I ask because for my Vette, balancing a lightweight flywheel was recommended if installing one. Thanks...

Flywheel Balancing Vid =
[ame="http://www.youtube.com/watch?v=sl8F_ZtMhNk"]Subaru Flywheel lightening and Balancing - YouTube[/ame]

Checked out the ARP 2013 catalogue and they don't list flywheel bolts for any Subaru engine unfortunately. If i can find the thread specs maybe something would match up though.

The Toda lightweight flywheel comes balanced BUT I personally like to get my flywheel and clutch balanced together for peace of mind. I have had this done twice now on my old Celica with a Toda flywheel and Exedy HD clutch. The firts time they were already spot on balanced, the second there was only a slight imbalance which was corrected.

EDIT: I wouldn't recommend lightening your stock flywheel. Doing so can weaken it and the last thing you want is a flywheel failure at 7500rpm.

Just make sure you don't put drive plate bolts in place of flywheel bolts. The AT bolts are the same length and thread count but they do not stretch. Trying to stretch them will likely destroy your crank or break the bolt off.

I bought new bolts from Subaru when I installed my ACT flywheel/clutch. I believe they are the same part number as for the STI. If nobody gets you the torque specs, I have them printed out of the factory service manual and can post them up tonight.

Thats would be awesome. I dont suppose you have the bolt part numbers as well?

I can't find the receipt for the part numbers. The instructions in the manual state this:

The order is 12 o clock, 6 o clock, 9 o clock, 3 o clock, 10 o clock, 4 o clock, 1 o clock, and 7 o clock. Basically pairs across from one another repeated.

I have never in my life seen a TTY bolt used for flywheels. And those torque specs do not have a degree of stretch in the specs... so I don't think they are.

I'm not saying they aren't, but if they are it will be the first I've worked on. Of course, the FSM always recommends replacement parts for critical parts regardless of whether they are requiring replacement.