For those who have done all of the intake & exhaust mods (and did not update their ECU to compensate in anyway) do you have any pre & post Dyno results?
Reason for the question... another autoX and bracket racer that I compete with brought up a good point about our cars:
He contends "our cars monitor and adjust the air/fuel ratio ... no matter what intake mods you have, you won't change the power of the engine because the engine only allows a certain amount of air through"
furthermore, "the CAI may change the tone of your exhaust, but the power gains will be nearly imperceptible"
As far as exhaust, headers & full systems can reduce both weight and resistance... but I am curious how that affects the HP and Torque curves. In many turbo cars, reducing the back-pressure bleeds low end torque in trade for high RPM HP.
I am highly interested to see the impact the exhaust and or intake changes without updating the software to compensate.
Thank you in advance for any and all input to the discussion!
Reason for the question... another autoX and bracket racer that I compete with brought up a good point about our cars:
He contends "our cars monitor and adjust the air/fuel ratio ... no matter what intake mods you have, you won't change the power of the engine because the engine only allows a certain amount of air through"
furthermore, "the CAI may change the tone of your exhaust, but the power gains will be nearly imperceptible"
As far as exhaust, headers & full systems can reduce both weight and resistance... but I am curious how that affects the HP and Torque curves. In many turbo cars, reducing the back-pressure bleeds low end torque in trade for high RPM HP.
I am highly interested to see the impact the exhaust and or intake changes without updating the software to compensate.
Thank you in advance for any and all input to the discussion!