How early must one focus on engineering in college?

<p>Hopefully I can transfer some of my AP Credits. I’m currently in AP Chem and AP Physics B. I know that many universities don’t even accept Physics B since it’s algebra based and physics and engineering usually do physics that is calculus based. That is, of course, if I get a satisfactory score on the test(s).</p>

<p>I am also only in Pre-Calculus right now but I did a program through my school that would let me take CC classes for free. I may take Calculus I over the summer at the CC before I go to university so I am more prepared for calculus in college. I’m not so much concerned if it would transfer or not, but more just to get my feet wet. I’d only be paying for the textbook anyway and my summers are always pretty empty.</p>