Also check:
http://www.sr20deforum.com
Theres some excellent stuff on there dealing with turboing your SE-R or doing the bluebird/GTi-R/Avenir sr20det swap into your Nissan BXX series chassis. But make sure you search the site before you ask questions theres a ton of info that has already been posted.
http://www.nissanforums.com
This is another great site to check out.
Hope that helps some man.
Mel