Quote:
Originally Posted by mad_sb
I don't understand... leaner is leaner period. Does not matter if the tuner makes it leaner by taking fuel out of the fuel map or the intake throws off the afr.. if there is power to be gained on a particular car by going leaner it will make power either way (tuner or filter).
However, if the intake messes with the calculated load (and it certainly will if it changes the afr, in fact that is why the afr changes, because the flow around the sensor causes a deviation from stock maf scaling) then the tuner will need to take that into account because load affects all of the control systems, not just the fuel but also timing, avcs angle, etc.
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I was not able to explain myself correctly. Most of the intake looks like they are providing an increase in power on stock tune, just because it makes the car run leaner.
If the car is tuned with the intake, the tuner has hopefully take in account it and tuned the car properly so mostly the increase will not be as strong as before when the car was not tuned and was running much leaner.