Could you have a look at the atachment please & let me know what you think?? I\'m prety sure that I have got all the figures correct in the maths, but would be nice to have a pros opinion on them ;)
Stock engine should flow: 628.4cfm @ 8000rpm running 0.9 bar (acording to the calculations this should produce about 338bhp?)
Stock engine shoul flow: 727.6cfm @ 8000rpm runningg 1.2 bar (acording to the calculations this should produce about 392bhp?)
The dark blue line is the 0.9 bar pressure line and the light blue is 1.2bar
(http://i35.photobucket.com/albums/d192/jonathandudley/rexturbomaps.jpg)
Cheers
Jono
On the Garrett site there are some good tutorials on Turbo\'s
The last one is all about compressor maps :) :
http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech103.html
It should help you size an appropriate compressor / turbo.