i found a basic answer from a manufacturers website. on a 9:1comp engine 8psi will add 35-40% power, on an intercooled setup running 17psi you can get a 100% increase.
so if we assume a 1:1 ratio of HP to cubic inches (pretty standard these days on a mild build) and a 40% increase you'd be just under 500hp i'd definately run an intercooler but i wouldn't go as far as 17psi. maybe 12-14 max on a street engine.
so if we assume a 1:1 ratio of HP to cubic inches (pretty standard these days on a mild build) and a 40% increase you'd be just under 500hp i'd definately run an intercooler but i wouldn't go as far as 17psi. maybe 12-14 max on a street engine.