in my new engine i will have S5 rotors in my S4 block with the counterweight from S5. i was wondering if there is any difference between the S4 and S5 in the eccentric shaft and the flywheel.

i was hoping that Ted might have this in his table of weights

Justin

 

hello out there. somebody has to know something about this

 

The front counterweight and flywheel must be from the same series as the rotors.Or if you use a non standard flywheel you need the rear counterweight from the automatic of the same series.

 

I thought that if you get an aftermarket flywheel it comes w/ a rear counter weight?

 

Only if you pay for it.

 

Six Rotors is right - you need to match the front counterweight and rear counterweight if you're swapping rotors.&nbsp If you're using stock flywheels, they have to match years (1986-1988 versus 1989-1991).

Are you using an aftermarket lightened flywheel or STOCK flywheel???



-Ted

 

stock flywheel.....

what about the eccentric shaft????

how much do lightened flywheels run??

Justin

 

Eccentric shafts don't matter.

A lightened flywheel would be anywhere from $350 - $600 brand new from vendors.




-Ted

 

so if your using S4 housings and using a aftermarket flywheel and 89+ rotors you need the 89+ front conterweight, and the 89+ rear counterweight right?

 

Yes, if you're using an aftermarket lightened flywheel.&nbsp You can get away with a 89+ stock flywheel, if you can get your hands on one.

(The rotors housings don't matter.&nbsp Neither does the eccentric shaft...)



-Ted

 

the s5 flywheels are lighter than the s4's, so they need to have the corresponding front and rear counterweights. Example is I am running an s4 engine with and s5 flywheel and counterweights(front and rear). The rotors and eccentric shaft should be fine. I am still running the s4 rotors and shaft.