Turbo sizing for 2.0 engine

[Rick Frey]

At 11:36 AM 4/27/2003 -0500, NismoDriver@aol.com wrote:
>What are your horsepower goals?  A stage V wheel in a .48 is going to really
>choke the turbo. If you are looking for decent spool and up to 350 whp or so,
>I would go with a .54 trim (Very efficient maps up to 15 psi) 50 A/R
>compressor, Stage III in an extrude honed .63 housing. If you want around 400
>whp with decent a spool, I personally like the .50 trim 50 A/R (or 57 trim 60
>A/R) and a Stage 5 wheel in an extrude honed .63. This exhaust side gives
>better spool but will not provide the high power numbers that the more
>popular  Stage III .82 will provide. Just my .02.

Do you (anyone) know of any websites or literature that acts as a tutorial
for reading and understanding compressor maps.  I have seen maps on various
websites but don't know how to interpret them.

TIA,
rick frey