The turbo characters play the same (but faster) apart from 3:
Chun-Li's (Foward+MK) is now (Backward+MK), allowing it to be in combos.
Fei Long's (Down+LK), (Down+MK), and (Down+MP) can all be buffered into his Rekka-Kens.
Sagat's Tiger Shots have no recovery time, and his standing LK and MK can be followed up with any special moves.