Quote:
Originally Posted by Fergy
I'm pretty sure they engineer these cars to be fuel efficient, so hitting the boost curve early isn't in their interest. the turbo is there to aid its small output when lets say going up a steep incline or passing. with a different sized turbo it would probably be fun to drive, maybe even just a tune if it has boost control based on ecu paramaters
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European cars are engineered to use the smallest engine possible and all of their focus is around "time to torque" or boost response due to the scavenging possible with VVT and a DI engine. I'm always intrigued when I hear the "no lag" statement and wonder if some revolutionary improvement has been made (I've been in the boosting industry for the majority of my life). I still remember when Porsche revealed their VGT for the flat 6 at the Dresden Boosting Conference a few years ago. The plot they used to show the improvements still displayed almost 2 seconds of lag. Hardly what I would consider a lag-less system.
Best turbo car I have driven lately is the Volvo 2.0L found in the new XC60 and XC90. It has an compound SuperTurbo system that leaves a great impression of driving a large engine when engine downsizing is required to meet fuel economy requirements.