Originally Posted by
Spec R
its just the way it works out. rich or lean, its still a mismatched ecu/engine pair.
A B20x with B18b intake and exhaust manifolds is just an overbored B18b, under normal operation the O2 sensor will account for any rich/lean conditions, and I doubt WOT will be dangerously rich or lean. People run far worse combos than this all the time.:shrug: