I really need your help, Im doing a college project on theoretically turbocharging a type R, and im finding getting information is a bit hard. If anyone has any information (including compressor/turbine graphs) or know where I can get them email me at mail@mccoy185.freeserve.co.uk Any help will be greatly appreicated and I thank you all in advance.
Many thanks

Big John

 

here ya go
http://64.225.76.178/catalog/compmaps/fig4.html
compressor maps for popular turbos