What Makes Everything Work Together?
Tuning and electronics are what bring everything together. Having the proper equipment, hardware, software and an experienced tuner is key to obtaining unbelievable power and torque while still keeping the stock driveability it had from the factory.
Tuning on fuel injected engines is the electronically controlled management of ignition and injector timing and spray duration to achieve a desired, well burning ratio of air and fuel. The car's engine control unit (ECU) dictates these actions according to the constantly changing information fed to it from a variety of sensors located up and downstream of the combustion process. These is a sensor in the intake stream which measures the amount of oxygen entering the engine, as well as a sensor in the exhaust system to measure how much of it was used during combustion. The engine's operating temperature and intake air temperature is also measured, the values of which are all used in computing a tune to maintain the tuners specific target fuel-to-air ration. Tuning an electronically controlled management system is necessary when modifying your engine. For example, fuel injectors have a limitation on how much fuel can be supplied to the combustion process. If you turbo charge your vehicle, the turbocharger forces more air into the cylinders than they are capable of drawing in on their own, which requires fuel injectors with a much higher flow rate to compensate with the proper amount of fuel. The ECU however will apply the stock fuel map to the new injectors as if they were the originals, causing too much fuel to be sprayed. In this condition the car will not run well, or at all. This is were tuning comes into play. There are a variety of computerized products available to handle significant changes like this, ranging from pigg-back ecu's, to completely replacing the original system such as an AEM.
Custom tuning starts with a base map. Our tuner will customize a base map for your specific application to get the vehicle started and running smoothly. After the base map is loaded and the vehicle is running, the car goes on the dynamometer or "Dyno". The dyno is a very important tool for tuning. It is an instrument that calculates horsepower and torque while allowing the tuner to record other important parameters such as air/fuel ratio, knock sensors, temperature, etc. As your car is driven on the dyno at wide open throttle, "WOT", the tuner makes several fine adjustments to achieve the safest and most reliable horsepower and torque obtainable. Normal driving conditions are also adjusted to achieve stock driveability and fuel mileage. After the dyno testing is complete the vehicle is road tested and tweaked to its final adjustment.