Many are performance enthusiasts that build, race and drive high performance vehicles. Founded in 2003 by hard-core automotive enthusiasts, SCT's employees share a passion for the products they create and the performance vehicles that utilize them. is a leading provider of handheld automotive performance / fuel economy programmers and custom tuning software for Ford, General Motors and Dodge / Chrysler vehicles. Advantage III Custom Tuning software is not only the most advanced custom tuning software on the market, it is the Number 1 Selling Custom Tuning Package Worldwide! Belt fans will speed up, and electric fans will need more juice from the alternator.Advantage III Series Ford Pro Racer Package. The faster RPM speeds up the accessories, specifically the water pump and fan. This RPM increase will help burn the rich mixture cooling the combustion chamber. Idle will increases 100-200RPM if the ECT or ACT is over 225☏. Not to high with A/T transmissions to prevent creep at stoplights. The Throttle Air Bypass will be controlling idle, we need a nice smooth idle. Air is pumped into the converter, but will dump to the atmosphere after several minutes to prevent overheating the converter. We need hot exhaust gasses to help complete combustion and converter operation. Timing is mildly advanced and will begin to retard after a minute. There will be no EGR operation at these RPM’s. We are now aiming for 14.7:1 A/F ratio for perfect emissions, enrichment will occur only if the ECT is above 225☏. Fuel is now closed loop with HEGO switching.
255☏ is the magic number to start complaining about overheating.
Typically the computer is struggling to achieve its target RPM. The computers is programmed with a target RPM for idle, typically it’s around 672RPM. Warm idle occurs if the engine starts and ECT rises above 185☏, we come up to a stoplight, or place it back into neutral. This one tends to be more about emissions.
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