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Al Pettee said:
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Grant said:One of the upgrades mentioned is the use of variable vane turbo chargers (where the impeller pitch is adjustable inside the turbo). This should really reduce turbo lag even further. The AWD system is due to be vastly improved as well as the DSG tranny system (I'd still get a manual, but it's much better than Tip).
Grant,
Do you know much about the variable vane turbo and adjustable impeller pitch concepts? Is it possible to rig a car with a control button for the driver to electronically adjust impeller pitch, say, for low-end torque for stoplight drag racing, and broader torque profiles for sustained, higher speed driving?
Al - The whole purpose of the variable vane turbos is that they automatically adjust the pitch of the impellers (not sure if it's electronic or mechanical), so that they spool quickly from rest and make maximum boost consistently from any engine speed. It should be better for all of your scenarios above - no downside or compromise except for greater complexity and potential breakage. There's no need for any button on the dash. You just press your right foot down and it does the rest...