Hi Im new to the turbo sceane. Ive been race Proam allmotor and know tons about building all motor cars but Im bolting up a turbo kit and was woundering what trim and a/r means the higher the a/r does that mean its bigger. Please let me know Thanx

 

http://www.hotrod.com/techarti....html
http://www.howstuffworks.com

those are both great places to look for info...i also have a .pdf copy of Corky Bell's Maximum Boost if you need