Most of my turbo information comes from two scources. I gathered information myself from the net from people who have turboed their cars and from mechanical engineering students that i am friends with in school.

I researched a H turbo build, a B turbo build, and among others witnessed and had input on an STi that is now pushing near 400whp.

Even among the experts there is difference of opinion. It doesnt mean that there is BS flying around, it just means that old habits die hard and people tend to think what they think. Granted your guy has probbaly had more experience there to set him right-- there are some things that even the experts don't know.

I know many people who have turboed their cars and gotten no increase in gas mileage. the only increase i have heard about are when you upgrade from one turbo to a more effecient unit. When my friend upgraded to his SR55 his gas mileage got better on his DD map. This was because the SR55 got to boost more effciently and with less wasted energy than his stock turbo. He basically lessened the exhaust restriction and increased how the air went through the engine.

Your car will get worse gas mileage because you are putting an exhuast restriction on. I understand that you are going to cap the boost with the TB and keep it low, but you are still making boost, and that is still causing you to waste energy. i'd like you to calculate your MPG for us after about 2 or 3 tanks, and then do it again driving in the same manner-- you said you get 450 to a tank right now, well lets see how you do after the turbo. And stop teh talk about getting bigger explosions-- to get a bigger explosion you need more air AND fuel. they go hand in hand, you can't have one without the other or you will have too much of one and your AFR will be off.

As for your personality on HAN. It's disrespectful, this is a place for learning, if someone says somthing thats not right you can correct them, but you don't have to do it matter-of-factly. Many of the members on here know what they are talking about and it's a place for casual conversation. If you shoot down everyone for shooting BS in real life, what happens?, you get booted from the group for being annoying. The same things happen on this board. I want you around because you are going to be learning stuff in your build that we need to know around here, but for all our sakes please just chill. It does no one good arguing, though some of us enjoy it. and we are all actual people on the other end of the conversation.