[swiftpete]

Is it a good idea to take the battery off/pull out the ecu fuse for 20 mins then whack the new air filter and give it a bit of a fast run to let the car adjust to the new one? Or is this just a complete waste of time??

 

[Superaero]

Waste of time. The Trionic continually adapts.


Anyway, a free flow air filter won't affect a turbo engine much because they are not air limited. The turbo can suck through pretty much any air filter. The turbo boost is limited by knocking which is limited by cylinder pressure. Free flow filters work best for normally aspirated engines.

You might notice a little better throttle response when not boosting.
Be sure that the new filter is not drawing in heated air as many of these systems do. This will seriously reduce power potential.

Put another way, the trionic system allows the turbo to pack as much air in as the engine can stand regardless of any resistance in the intake so a free flow filter won't increase torque or hp.

 

[swiftpete]

Put another way, the trionic system allows the turbo to pack as much air in as the engine can stand regardless of any resistance in the intake so a free flow filter won't increase torque or hp.

Surely if the air filter was free flowing then it would be easier and quicker for the system to pack the air in though? Less resistance has to be better doesn't it?

 

[Superaero]

Yes, for atmospheric engines that have the natural limit of ambient air pressure poushing air into the engine. With turbos or mechanical superchargers the compressor provides the pressure, not the atmosphere. You might notice a little better turbo spool up and off boost performance might feel a little more sprightly but peak power and torque are limited by detonation, the turbo just stuffs more air in until the engine detonates so a free flow filter cannot improve the max power or torque.