I make my Bolognaise sauce with Bhut Jolokia, the following recipe has only marked 1 small Bhut in it, but u can improvise and use more hotness 
http://thehotpepper.com/topic/41459-ollis-best-bolognaise-sauce-ever-serves-8/#entry873377
As I've allready posted this recipe I'm only linking it here.
Hope it is usefull for u and other people
http://thehotpepper.com/topic/41459-ollis-best-bolognaise-sauce-ever-serves-8/#entry873377
As I've allready posted this recipe I'm only linking it here.
Hope it is usefull for u and other people