If you run out of room and ditch the idea of a passenger (and being cool in the summer), you can put the turbo in a lot of places too. Here's an AIX car with a turbo and water to air intercooler next to the driver.
http://www.doc4net.com/doc/3599778344486?cn=3
Back from the dead. Now you can just buy it. Integrating it with an old L however...
http://www.eaton.com/Eaton/ProductsServices/Vehicle/Superchargers/EAVS-supercharger/index.htm#tabs-4
Came across this today. Apparently a RB30 SOHC swap. Couldn't really tell what was going on from Google-Translate, but it looks the business. Seems like RB30 heads don't flow much better than the L series though.
http://sato1511.blog40.fc2.com/blog-category-66.html
Seems like we are going to be outlaws soon...
https://www.yahoo.com/autos/s/gm-ford-others-want-working-own-car-illegal-160000229.html?soc_src=unv-sh&soc_trk=ma
Just came across these guys, they sell a standalone controller. Just scroll down a page or 2. No price listed so I'm guessing that probably means ALOT.
http://www.transmissioncenter.net/6l80e_performance_transmissions_torque_converters_parts_6l90e.htm
Seems to pack quite the wallop in a compact package. I like that it has a built in fuel pump for its direct injection set up. Now if I only had a spare 14k lying around...
http://www.crateenginedepot.com/LTG-20L-Turbocharged-19328837-P51443C556.aspx
Not sure how those welds hold up long term, especially it being MIG, but still very impressive.
http://www.hotrod.com/how-to/engine/1412-how-to-build-your-own-sheetmetal-engine/
Back from the dead. Found a vid today that might be of interest to some people who are interested in undertaking the task. I have no idea how he came up with the combination of shims or if the port volumes would be better/worse if he didn't have a dyno onhand. I guess if you are into ALOT of trial and error this could pay dividends.
Not really a big fan of seeing the S30 drifting, but it's definitely a nice car and well drifted!
http://jalopnik.com/drifting-a-500-horsepower-rb25-datsun-280z-is-what-drea-1558334551
I believe when I inquired about that engine awhile back, I was told these guys bought it. I could be wrong, but you might want to drop them an email.
http://epracing.net/