The car is an s4 gxl still with its stock 13b na. It's getting a t2 diff and s4 t2 trans. Can I use a stock s4 t2 flywheel with out changing the front counterweight?

 

Yes

 

you changing the N/A system to TII?the whole drivetrain from the engine back?
Transmission,flywheel,starter,clutch slave,driveshaft..keep on going?..Ok!...Differential,halfshafts.
You can keep the N/A diff and shafts but you would have to get a conversion driveshaft to go from TII trans to N/A diff..but it wouldn't hold up under severe power.

 

Just finished the swap. It's an S4 GXL, now with a t2 diffy, t2 halfshafts, t2 driveshaft,t2 tranny, and t2 clutch flywheel.

Car runs great. I have had a few people say that the heavier flywheel will cause the bearings between the rotors and eshaft to fail prematurely. Not to sure about that though.

Thanks for your input guys.

 

well my thinking would be that If the N/A and TII flywheels are interchangeable and they have the Counterweight built into the flywheel( as opposed to an auto flexplate or lightweight flywheel that has a separate counterweight) .
Then the statement would not be not true that the flywheel is heavier.
my 2 cents..

 

The flywheel would have to be heavier because it is physically bigger than the NA counter part.

 

The t2 flywheel is in fact heavier but it works because the weight is distributed evenly around it, the counter weight weighs the same, if it didn't the car would run like ****.