
Originally Posted by
oj88
What those gadgets do is simply simulate "responsiveness" by increasing the sensitivity or the rate of change on the throttle opening and/or even amplifying the output to the ECM. For example, in an unmodified vehicle, let's say that a certain throttle input by the driver is interpreted as 20% of WOT by the ECM. If you add the gadget, the same driver input would probably bump up the signal to 30% or so, telling the ECM to open the throttle faster and/or wider to give the sensation of responsiveness to the driver.
It does NOT alter physics and will NOT make the car any faster.
I read through the product features and actually laughed at the some of their claims... see such example below:
Two things: First, electrons travel faster in an electronic/drive-by-wire accelerator pedal system compared to a cable-type/mechanical throttle. 2nd, any inherent delays are deliberately programmed in the ECM to balance performance, fuel economy, and more importantly, longevity of the powertrain.
For example, the ECM is programmed to retard the throttle (what the article calls "setback") during shifting so power is delivered only AFTER the A/T has shifted and locked on to the next gear. This happens when you stomp on the gas pedal to overtake or when climbing a hill and the ECM decides to shift to a lower gear. Bypassing this feature could mean accelerated wear on the A/T clutch packs as the engine is allowed to run at high RPM while the clutch is 'dumped' on the next gear. Yes, it may produce some impressive wheel spin but, is that really your cup of tea?
If you need more acceleration in a jam, do what every driver worth its salt does.... put the pedal to the metal. It yields the same result, but for FREE.