ok finally did the 15lb fly wheel. its a r.b. 1.... tossed it on the scale 16 3/4 lbs with the counter weight and bolts and such. now the odd 1. stock 81 flywheel...22 lbs? book claims 32.. my input on this mod... i cant really tell a need for much more rpm to start... but i really like this flywheel. 2nd thing is my clutch seems softer to push in...anybody got any ideas on that?

 

Rebuild the clutch hydralics, that was the problem I had. Much better pedal feel.

 

On these cars, every time work is done to the clutch,
flywheel,transmission,after the last bolt done,then test the pedal, it's always different,,like after installing the sickiest race clutch,the pedal just don't feel right..maybe
the hose is expanding,if you don't alreaddy have S.S.
and whats with all the inaccuratses ??? 15 lbs,turns out
to be 163/4 lbs you know,,whats in the car, doesn't
match the books,i mean WTF,,,over !

 

http://www.mazdatrix.com/faq/flywheel.htm

81-82 flywheel: 23#

 

Ready to take my 26# out and out in my 9# aluminum one? Weighed it with counterweight and bolts = 14#
This stuff is never accurate.

 

yea the inaccurate 15 was with no counter weight and bolts im sure. and you add the bolts and counterweight.

 

So how much weight did you really save?