Wow this is a good thread. More info please.

 

S5 rotors are a bit lighter than S4 ones. This reduces rotational inertia and makes the engine rev better. They also have machined recesses instead of cast ones, which means each face has exactly the same CR.

As for strength, you need to be running serious boost before rotor strength becomes a problem. How many people here can say they’ve actually broken a rotor because it wasn’t strong enough?

 

personally im just looking for a nice 13B Turbo II to throw in a FB and have the most "reliable" stock HP available to build up upon. im plannign on rebuilding the whole the the whole deal you know how it is. so im tryign to gather as much info as i can here. so far this is better then what i expected thanks alot guys and keep it coming.

 

also i am not sure if this will help but i would liek to add this link to another topic about disabling the OMP and premix it seems pretty interesting. https://www.rx7club.com/forum/showth...threadid=87526