We are talking about a much less sophisticated engine to what we have now - a simple racing engine. (wtf1.com)
It might not be the most sophisticated engine, but there is an old - school charm to it's overtly turbocharged nature. (evo.co.uk)
Sophisticated engine management systems receive inputs from other sources, and control other parts of the engine; for instance, some variable valve timing systems are electronically controlled, and turbocharger waste gates can also be managed. (en.wikipedia.org)