Hi, I am planning on putting a s6 flywheel on my s4 TII. I was wondering if I need to change the front counterweigt to an s5 or s6? TIA

-Aaron

 

The counterweight has to match the engine, so you need an S4 counterweight.

PaulC

 

http://www.mazdatrix.com/b5.htm read about in the middle of this page.

 

This is what mazdatrix says on their website...

Important note on counterweights: The front and rear (or flywheel) counterweights PLUS the rotors make a balanced assembly. The years / rotors we list in the following charts are for PRODUCTION years of the rotors / counterweights! A lot of mixing can be done when building engines, providing the rotors and counterweights match. By this we mean 89-92 non-turbo rotors (lighter weight, higher compression) can be used in an 84-85 13B engine as long as the matching front and rear counterweights are used also, for instance.

that would be great if i didn't have to change though, cuz i really don't want to have to spend the extra money.

 

so what does that exactly mean? my rotors and counterweight will match as they are stock, but will the fd flywheel mess anything up without changing the front counterweights?

 

wait, i cannot even use the s6 flywheel then unless i change rotors as the s4tii are slightly heavier and lower compression.