the itch has hit and i started building my turbo setup....was going to order the turbo today but im lost on the a/r of the turbo...im aiming for 500whp using a gt40 and was curious on peoples thoughts and responses to such a turbo...if someone is willing to explain a/r of the turbo in reference to flow/spool i would be very greatful..

setup is as follows
b18b sleeved stock bore as i havnt decided on pistons yet
portflow pnp b16 head
crower turbo cams
1000cc rc injectors

suugestions on intake manifold would also be nice....

 

very helpful forum figured it out anyway.... thanks but no thanks