It depends, but i know that i've put maniacs allin preflop with stuff as bad as AJo, although he called me with 53o, so the range of hands was definately there.

If you've got him on tilt and you have a really maniacal image then i'd probably be willing to go allin preflop with it. When i make moves like this its not so much about my image, it is more about whether the player is on tilt or not.