My friend just made one for his sr20det and it works so I'd thought I'd share with you guys. Going to be making one for my car soon because my Greddy Profec B Spec II sucks and I hate dealing with gain, setgain, and set... I just want a knob to turn to boost up and down. lol... Hope this is'nt a repost and some of you will find this useful. Hopefully I can hold 10 psi solid now.
http://www.geocities.com/chmwatson/FAQs/mbc.html
http://www.geocities.com/chmwatson/FAQs/mbc.html