Supercharging would require as much as a turbo in a way. You have to find somewhere to run a belt off the crank to the SC, then still run an IC and piping. You'd still need a piggyback controller to map the injector and fuel changes. Upgrade fuel pump especially if you think you can run 8psi.
Turbo kits for the 00-04 Leggy only run 5-6 psi.
Either one is a recipe for failure if not done right. And it sounds like if you want to run 8psi on stock EJ251 internals...be prepared to set aside $4k for another engine. We dont have Civics.
Last edited by BrandonJ 2001 GT Limited; 11-03-2011 at 04:41 PM..