So I just got a 2006 TSX and I’m currently replacing the trans since the previous owner put in a DC5 5-speed from an RSX base, I’m doing all motor mounts and trans mounts and EVERYTHING. I got an OE spec clutch from LUK and was wondering if it is ok to put in a lightweight flywheel with it ?
You got an RSX clutch right? Just make sure your clutch and FW are both for RSX and not TSX - I'd look at a lighter fw - my 11.5 lb Competition Clutch flywheel is perfect for daily duties. I've driven one with an 8lb fw and found it to be a bit much for street use.
You can add a 6th gear to the RSX box - which might be a better idea if you know it's in good condition - the first 2 gears are the same and the rest are so close you could step down a tire size or change out the final.
I would get the lightest flywheel you can if you are fond of spirited driving, especially if you plan to re flash the ecu and remove rev hang.