Here are some good SR20 mods links
Injector sizing
http://www.sr20forum.com/technical-informa...whp-output.html
MAF sizing
http://www.sr20forum.com/technical-informa...whp-output.html
Turbo FAQ
http://www.sr20forum.com/turbo-guides/77675-turbo-faq.html
How to turbo a stock B13
http://www.sr20forum.com/turbo-guides/8994...r-turbo%22.html
Dyno numbers with supporting mods
http://www.sr20forum.com/turbo/82080-post-...2Aturbo%2A.html
SR20DET motor info
http://www.sr20forum.com/turbo/199599-niss...cts-2007-a.html
Building a 200whp all motor, motor for under a grand
http://www.sr20forum.com/all-motor/215517-...d-part-1-a.html
SR20VE FAQ page
http://www.sr20forum.com/neovvl-guides/183...read-first.html
And SE-R 101
http://www.sr20forum.com/technical-informa...se-r-101-a.html
The SR20 tech library
http://www.sr20forum.com/technical-information-library/