http://racingbeat.com/FRmazda4.htm

Although I have read the little summary, I am still wondering what it does for the the AT.
Also-
Mazdaspeed Flywheel
vs
RB Aluminum Flywheel?

 

It's just a counter-weight puller.

On the MT you can use the light-weight fly with a AT counter-balance.

The lightweight flywheels won't work on the AT. The bolt holes for the Tourqe converter are not present.

 

Dang, so we are at a disadvantage here eh?

 

Last time I checked there was no way to use a flywheel and clutch on an AT...maybe it's just me...but don't you really want an MT8

 

What the AT's have is called a flexplate. It is simply there to hold the ringgear for the starter to contact. Enableing us to start the car. As a bonus it does allow you to mount the torque converter and thus obtain a connection between engine and trans. Thus propeling the car.
It's a miracle of modern technology.
Oh and the reason they use the AT counter balance on the lightened flywheel on the MT is for inertia of the flywheel and balance of course. Oh and it gives you a place to mount the lightened flywheel to.

 

Cool thanks, do you think its worth it then to buy the RB Balance Weight puller? My friends RX8 recently got a new flywheel and man, that thing changes it all!

 

What EXACTLY are you trying to do?

 

Accelerate faster