High torque motor
 

I need to know what the highest torque motor is that is 3.8 or smaller and is sold by this site. It is for a micro gyrocopter that I am desgning, in case the stock motor that I have isn't gutsy enough. Anyone know? I was thinking either this one: http://tinyrc.com/shop/product.php?pid=499

or this one: http://tinyrc.com/shop/product.php?pid=414

What do you think?