Go to chapters.ca, buy "maximum boost" by corky bell... you liket turbos, its the best 40 bucks you will ever spend. PERIOD. you will learn more from that book then anything else I can point you to. Yes, its 40 bucks, but I promise, it's VERY well spent.
DOH !! mais c ca pareil ..je trouve que le monde oublie que c un forum pas un sti de gros MSN ..c sur qui a du monde qui connaisse rien pis qui sont nouveau ..quand il pose une question le monde le traite casiment d'épais parqu'il pose une question ! criss !! c drole c fait pour ca , me semble ..bon ok il en a qui sont pas mal plus épais que d'autres mais là!
Huh? What do you want me to do, copy down everything and write it out? Trim changes how the turbo works, more agressive, larger trim = less exhaust backpressure but takes longer to spool but more peak power, smaller trims with less agressive profiles spool faster, but choke off the turbo at the high end. I am not kidding, go buy the book. If everyone on this board owned that book, it would be a much better place. Trust me.