Try learning the Chronokinesis ability. It can change your perception of time without a computer. But, time perception does not allow time travel, just remember that.
thinking about the car crash, rather than a time slow, it's more like being able to completely comprehend what the ****'s going on, and being able to react in an intense amount of time. so... baisically a intese version of gamma/cocaine/A-Bomb.
when i had a dream
about Time Shifting and i morphed into some kind of
being and said i was Time Shifting and time slowed
down around me but i can still move at a normal or
fast rate, and then i woke up. is this timeshift or Chronokinesis
basically the feeling of slowed time in car accidents is caused by an immediate surge of adrenaline...so basically you are looking for a dose that would cause your brain to pump very large amounts of adrenaline through your system, much more then when you get an 'adrenaline rush'