No, you have it backwards. The offset is too high. Again, offset is the distance (in millimeters) from dead center. The higher the offset, the more the hub of the wheel moves outward away from dead center towards the outside of the wheel. The more outward the hub is, the deeper you have to push the entire wheel into the wheel well before the hub meets up with the wheel studs and brake disc, etc. So if you want the wheels to sit outwards more, you have to decrease the offset. That means the hub of the wheel will move away from the outside edge of the wheel and more towards center. Or to put it another way, it will move away from the outside edge towards the inside edge of the wheel. The more the hub is moved inwards, the less you have to push the entire wheel in before it hooks up with the wheel studs. The end result is that the wheel sits more outwards from the center of the car.
Make sense? Look at the graphic that Modshack provided above. The more you decrease the offset, the more the hub (shown on the right side labeled "Front") moves towards the center dotted line. Now imagine that the brake disc and wheel studs are right where that dotted line is. What happens if you don't move the offset and leave the hub of the wheel right where it is, as shown in that graphic? You have to push the entire wheel in before it'll make contact with the studs, right? And when you do that, what happens to the outside edge? It gets shifted over to the left, which in this graphic would represent being pushed inwards towards the center of the car, sinking into the wheel well. Capiche?
