The reason for porting is to get better flow, mainly. Better flow = less pumping losses = HP! Porting will also help spool up some and can cure boost creep.
No, running an unported O2 won't hurt, you just don't get the full benefit from the other ported parts and bigger exhaust.
__________________
Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
|