Asking for a friend. Searched, but just want to get a clear, concise answer.

A friend of mine just picked up an s4 TII with a blown trans and just wants to thow in the s5 N/A trans he has laying around so he can drive until he picks up a TII trans. Can he do this, and if so, what else does he need? Would an s4 N/A trans go in easier than the s5 N/A trans?

 

well an s4 should fit no prob its what came stock s5 i have no idea i would think it should seeing as how its the same engine just different HP. but idk i.... lol I STILL LEARNING

 

The tranny will bolt up to the engine, but you would still need to use the old turbo flywheel. You would also either need a custom driveshaft, or a NA rear end and NA driveshaft. It doesn't matter the series of the rear end, though.
Also, the NA tranny is much weaker, so be sure not to romp on it.

 

To use a non turbo transmission on a S4 Turbo motor, you would also need to use the S4 Non turbo flywheel (of aftermarket light weight non turbo flywheel with a S4 counter wieght), non turbo starter, non turbo clutch slave, and of course non turbo divershaft, rear end, etc.

 

Cool, thx for the replies. I know to tell him to take it a bit easy, but he won't listen...

 

No, if he is using a non turbo tranny, he needs a non turbo flywheel.

No, if he is using a non turbo tranny, he needs a non turbodrive shaft.

 

Sorry, got mixed up on the flywheel. I just realized my mistake but you beat me to it. Also, if he is keeping the TII rear end, he would need a custom driveshaft, right?

 

yeah if it is a turbo car, and he has a non turbo tranny he would either need a custom drive shaft or non turbo rear end.