how much boost can my stock b16 run untuned. If its not much ill just build it while im running my b20 in my rex.

 

tune or die unless your runing xenocrons base maps the i run 20psi all day

 

Yeah, but you have a built block iirc. Don't run any boost untuned on a b16. They have a wicked timing advance and that plus boost=detonation. Not to mention if you're running the stock unmolested ecu and stock map sensor it'll freak out once you go over 1psi and put you in limp mode.