Oh puhlease, for the love of God!!!! It cannot be dismissed like "oh turbo lag is not a big deal" You are making it sound like turbo offers everything an N/A engine can, which is pure ignorance and biased opinion. Throttle response and sensitivity is what makes N/A engines (especially high-revving engines) completely unparalleled. The best example I can give is of the Porsche 911 Turbo 997 vs Porsche 911 GT3 RS.
Watching video of one-and-only Walter Rohrl comparing the Turbo with GT3 RS, despite Porsche's hectic efforts of reducing the turbo lag using VTG (Variable Turbine Geometry), even their own developer, tester and engineer of Porsche cars clearly stated that the turbo lag and absence of the throttle response of the GT3 RS due to turbo lag are two of the primary factors he would prefer the GT3 RS over 911 Turbo on the track any day. He explicitly explained how the turbo hits full boost hard abrupty mid-corner completely unpredictably due to lag making the turbo much less confidence inspiring while the GT3 RS has the throttle response of surgical precision that does exactly what it is told at exactly the right time. That is what N/A high-revving engines are all about. When we are talking rapid throttle changes across a wider rev range, N/A engines just simply cannot be matched by turbo engines. If Walter himself admitted that it is there and definitely hampers one's ability to carry speed and modulate the throttle through a corner, there is no reason to argue that "oh turbo lag is not a big deal"
Turbochargers have lag and it does affect their predictability and response duration and there are no two ways about it.
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Originally Posted by footie
3/ Lag..........again it's an over played thing by people. On the track it can be an issue but in 99% of situations you should already be on the throttle on entering a corner to balance the chassis so the lag isn't there. On the road you will notice lag more but with the improvement seen in recent years and my own experience with some of the best examples I say it's not an issue anymore..
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