Title says it all, can I swap out the rotors in my GSL-SE with rotors from an S5 N/A car? Anything else I need to change when/if I do this?

Thanks,

Scott

 

Also use matching front counterweight and flywheel and your fine.

 

Are you milling them out for 3mm seals?

 

Cool, thanks!

I was going to make sure they are in spec first but would you recommend milling them to 3mm regardless? And if so, who would you recommend for the milling?

 

Are 3mm seals worthwhile for moderate boost or na? I thought with todays mettalurgy 2mm would be fine and have the benefit of reduced inertia.
If you want to blow some coin maybe get your rotors balanced..

 

3mm seals are garbage. They eat rotor housings, don't seal as well, and are harder on the rotor slots.

Milling 2mm seal rotors to take 3mm seals is negating half of the advantage of putting in the newer rotors. In short DON'T DO IT.

Don't worry about detonation resistance. Detonation forces are so high that the difference between 2mm and 3mm seals is rearranging the deck chairs on the Titanic - in theory it is useful but practically speaking the forces involved mean it makes no difference.

 

Thank you PeeJay. That is very helpful advice.

 

Peejay is right.
2mm seal better than 3mm.
Also if running a high rpm engine would recommend getting them clearanced,if just a streetport your fine the way they are as long as you have matching front counterweight and rear flywheel.