I replaced my Stock SVT Flywheel and Differential with a Findanza Aluminum Flywheel and Quaife Differential.

I weighed both of them before and after on a high quality digital postage scale.

Here are the differences in weight:

Stock SVT Flywheel: 23.8lbs
Fidanza Flywheel: 12.1lbs

Stock SVT differential: 10.2lbs
Quaife differential: 13.8lbs.

As you can see for the weight measurements above I saved some weight with the Fidanza flywheel (11.7lbs) but I gained some weight with the Quiafe Diff (3.6lbs) my net weight savings is 8.1lbs.

What I gained in faster revs/accelleration and better handling with these two mods are worth the price I paid.

Which clutch are you running?

I am looking into the Quaife and Fidanza setup too, just trying to see which clutch to go with.

Not sure what VM Stage III Clutch is but it is in his Sig...

i weighted my stock flywheel, and weighted my lightweight flywheel and new clutch and the new set-up weighted almost exactly the same as my old flywheel by itself. i didnt weigh the differential because it doesnt make much of a difference in rotational weight.

How much did this run you back (purchase price, and also installation)??

Originally posted by NCC28983
How much did this run you back (purchase price, and also installation)??

my guess - a lot...lol

I am worried about a mechanic installing a locking dif...

I had a Clutch Master Stage III installed along with the Quaife and Fidanza Flywheel. Sorry my Sig was wrong.

If you click on on this thread you will see my cost for the parts:

My Cool New Mods (http://www.focusfanatics.com/forum/showthread.php?s=&threadid=74905)