Originally Posted by MA2LIS700
AND finally put to bed the issue whether having turbo increases one's fuel efficiency?
The answer to that question has a lot of 'ifs' and 'buts'. But in general, if the tuning is correct, and the only change is the addition of a turbocharger, then yes, fuel efficiency is improved because the turbo is helping to push air into the engine, so the engine has to do less work. Less work = less load = less fuel consumed.
Many of our Stage1 turbo customers report an increase in fuel economy under light throttle/cruise conditions.