The enhanced AccessTUNER Pro software now offers multiple ECU control modes to give the professional tuner and AccessPORT user a wider choice of engine modifications and tuning options. However, in a motor sports application where power levels are extremely high and intake airflow configurations are less standardized, the use of a MAF sensor can be highly limiting. Vehicles with stock engines and mild upgrades can utilize the MAF sensor with excellent overall results. The most common way to measure load in modern vehicles is with a mass air flow sensor (MAF). Precise and consistent load calculations along with feedback from other critical sensors allow the ECU to accurately control ignition timing, variable camshafts, and fuel delivery. The most basic function of an engine control unit (ECU) is to measure airflow and its translation to engine load. This development addresses the growing demand within the Subaru enthusiast community for motorsports grade engine management without sacrificing the drive-ability and sophistication inherent in the OEM ECU.
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The new “Speed Density” implementation instructs the ECU to calculate load by using temperature and manifold absolute pressure (MAP) as opposed to the OEM code that utilizes mass air flow (MAF).
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3-D graphical mapping gives the tuner a comprehensive view of engine behavior across three axes to evaluate where performance can be maximized.ĪccessTUNER Pro v1.7 is supported on Windows XP and Windows Vista 32-bit operating systems.ĬOBB AccessTUNER Pro Supports Speed Density Tuning COBB AccessTUNER Pro Supports Speed Density TuningĬOBB Tuning is proud to announce the availability of AccessTUNER Pro “Speed Density” support for all Subaru drive-by-wire vehicles equipped with a COBB v2 AccessPORT. The built-in datalogging capability captures data from multiple channels across the entire rev-range, allowing detailed data analysis after a dynamometer test.
Customizable data monitors let the tuner choose which channels are monitored to see how changes impact the behavior of the engine. The calibration is then flashed to the ECU via the AccessPORT handheld ECU flashing device, providing impressive power gains with all of the drive-ability and sophistication inherent in the OEM ECU.ĪccessTUNER Pro puts control of vital engine parameters into the hands of the professional engine tuner, such as intake cam advance, exhaust cam retard, fuel, ignition, boost control, boost limiter, engine rev limiter and speed limiter. Professional engine tuners can create custom calibrations for vehicles with aftermarket intakes, exhausts, turbos, cams or any combination of performance modifications. Using AccessTUNER Pro v1.7, professional engine tuners can configure the EVO X ECU to extract maximum power from a given set of performance modifications. COBB Tuning announces the release of AccessTUNER Pro v1.7 for the Mitsubishi EVO X.
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