I don't think so. You'd either say "as most" or "as most of us".
I'd be interested if you could find an example of your way though.
I don't have to, the way I used it is perfectly correct. It's true that strictly speaking saying "as most of us..." is grammatically more appropriate; however, the way I said it is not incorrect English and a perfectly acceptable form in ordinary colloquial conversation (which incidentally, is why you're not going to find it in formal writing). Don't believe me? Go ask your English professor. Foregoing the 'of' would be more common in a phrase such as "As most us engineers know" (one lacking an adjective); but adding an adjective there doesn't invalidate the grammar. "As most us knowledgeable engineers know" is just as correct, even if you'd be more inclined to add an 'of' in there as you would in the preceding example.
Leaving synctatic elements out of a sentence isn't always incorrect (and is actually more common in American-English); consider "I'll start school monday." versus; "I'll start school on monday." Both are correct. The former, though, likely sounds less correct to someone who'se grasp of the language is derived from formal training. I'd guess that either English isn't your native language, or you're assuming that the rules which you were taught are universal for the language. That, or you're just arguing for the sake of arguing.