OFFICIAL AEM Press Release for the 04-06 STi AEM EMS!!!

**AutoMaster** · 07-08-2008, 12:26 PM

AEM INTRODUCES ELECTRONIC THROTTLE CONTROL-EQUIPPED PROGRAMMABLE EMS FOR
2004-'06 SUBARU WRX STI!
Fully Stand-Alone Engine Management
Systems Control Drive-By-Wire Function
HAWTHORNE, CA
JUNE 20, 2008

AEM is proud to introduce its Electronic Throttle Control-equipped (ETC) Plug & Play Programmable Engine Management System for the 2004 Subaru WRX STi (Part # 30-1820) and 2005-'06 STi (Part # 30-1821)! The combination of AEM’s powerful engine management software, coupled with their ETC module, delivers complete engine control AND immediate throttle response via the factory sensors.

ETC - WHAT IT DOES
AEM's ETC is a drive-by-wire system. AEM Engine Management Systems for WRX STi models incorporate the ETC system, which controls the factory electronic throttle body. When combined with the company's programmable engine management system, this unit delivers complete control of the engine via the factory sensors and actuators and works with the OE drive by wire system without a piggyback module. It is important to note that since this (and all) AEM Plug & Play Programmable Engine Management Systems are to be used on off-highway racing vehicles, installing the EMS negates the factory cruise control function.

WHY YOU WANT THIS EMS FOR YOUR STi
Various OEM ETC systems design the accelerator position-to-throttle position transfer function for optimum tailpipe emissions and fuel economy, resulting in slow engine response that delivers a feeling of "lag" from the time you press the pedal to when the engine responds to this input. In other cases, the OEM Drive-By-Wire (DBW) system will deliver a sense of "perceived performance" by providing more open throttle than actual pedal input (for instance, 30% pedal input with 70% throttle opening event response), which could make attempting to pass a vehicle on the racetrack ineffective at best.
AEM's ETC unit was designed with throttle response as a priority. It is calibrated to deliver direct 1:1 throttle opening response. Below is a chart with rise time, fall time and throttle position accuracy for the AEM ETC:

Parameter Value
Closed to Full Throttle (Closed-WOT)
Less Than 1/10th second (100 ms)
Full Throttle to Closed (WOT-Closed)
Less Than 1/10th second (100 ms)
Throttle Precision
1/10th Degree
Additionally, AEM's WRX STi EMS's eliminate the need to convert back to mechanically actuated throttle body control units, throttle position sensors and throttle blade actuators to attain throttle control when using a stand-alone EMS without an integrated ETC unit on vehicles equipped with OEM DBW systems.

ETC CRITICAL SAFETY FEATURES
The Firmware for AEM's WRX EMS's are custom-tuned specifically for the corresponding WRX STi models to ensure optimum performance and safety. Since the ETC system uses all of the OEM redundant sensors and wiring, it continuously monitors all sensors and actuators for proper operation. If a fault is detected, the ETC module transitions to a Fail-Safe mode and gracefully disables the throttle body while allowing the engine to continue to run at a high idle (approximately 1500-2000 RPM). This function maintains power-assist braking and steering, allowing the user to safely stop the vehicle.
It is important to note that the ETC system's safety and Fail Safe strategies rely on vehicle components as delivered from the manufacturer and include (but are not limited to) wiring, ETC relay, accelerator pedal assembly and throttle body. All of the original components must be installed and functional to ensure both optimum and safe performance of the ETC unit in the EMS.

ENGINE MANAGEMENT FEATURES
The 30-1820 and 30-1821 EMS's plug directly into 2004 and 2005-'06 WRX STi factory harness and require no additional wiring or hardware for operation. Windows™-compatible software simplifies the manipulation of data and the Tuning Wizard allows users to create a base map specifically for a car's configuration regardless of what type of injectors, non-ETC related sensors, coils or other changes have been made. Additionally, AEM's EMS includes six general-purpose outputs and seven definable switch inputs for the integration of nitrous, water/methanol injection, map switching and more! Please visit the electronics forum on www.aempower.com for more information.

EMS FEATURES FOR THE WRX STi

Controls Subaru AVCS system: Camshaft advance angle can be accurately controlled to allow quick turbo spool at low RPM and increased flow at high RPM Multiple Fuel Strategies available: MAP sensor, MAF sensor, or TPS sensor can be used for engine load calculations. Allows removal of restrictive OEM MAF sensor Sophisticated Boost Control: Tuner can adjust desired boost based on vehicle speed, high/low boost switch, or throttle position. Closed-loop feedback prevents boost creep and helps achieve target boost level even when conditions change Closed-loop fuel and ignition control: Knock control can adjust fuel and timing to prevent engine damage when detonation is detected. O2 Feedback can adjust fuel to achieve desired AFR. Exhaust Gas Temperature control can adjust fuel to achieve desired EGT Individual Fuel and Ignition trims for each cylinder
Internal Datalogging: EMS records any 16 channels at up to 250 samples/second, can be reconfigured for over 10 hours of logging. Datalogger can be activated based on vehicle speed, engine RPM, throttle position, and manifold pressure

GENERAL EMS FEATURES

Uses all of the factory sensors
Fully enabled system—never pay for upgrades!
Free software updates on www.aempower.com
Fuel table automapping
Six general-purpose outputs
Seven definable switch inputs
Soft-cut rev limiters
Two-step launch control
Definable knock control
Full idle control
Four EGT inputs with fuel control

Legal in California only for racing vehicles which may never be used upon a highway

AEM performance products are Engineered to Outperform. The company manufactures street and race performance products that are unmatched in performance, quality and value. AEM headquarters is located in Hawthorne, CA.
www.aempower.com

ENJOY!

-Rob
-Authorized AEM Tuner
-DIRECT Master Warehouse Distributor

07-08-2008, 12:26 PM	#1
AutoMaster Authorized Vendor Car: Where Real Power is Fav Mod: Tuning & Performance Location: Mamaroneck, NY 10543 Posts: 664 Join Date: May 2005 Trader Rating: (0)	OFFICIAL AEM Press Release for the 04-06 STi AEM EMS!!! *AEM INTRODUCES ELECTRONIC THROTTLE CONTROL-EQUIPPED PROGRAMMABLE EMS FOR* 2004-'06 SUBARU WRX STI! Fully Stand-Alone Engine Management Systems Control Drive-By-Wire Function HAWTHORNE, CA JUNE 20, 2008 AEM is proud to introduce its Electronic Throttle Control-equipped (ETC) Plug & Play Programmable Engine Management System for the 2004 Subaru WRX STi (Part # 30-1820) and 2005-'06 STi (Part # 30-1821)! The combination of AEM’s powerful engine management software, coupled with their ETC module, delivers complete engine control AND immediate throttle response via the factory sensors. ETC - WHAT IT DOES AEM's ETC is a drive-by-wire system. AEM Engine Management Systems for WRX STi models incorporate the ETC system, which controls the factory electronic throttle body. When combined with the company's programmable engine management system, this unit delivers complete control of the engine via the factory sensors and actuators and works with the OE drive by wire system without a piggyback module. It is important to note that since this (and all) AEM Plug & Play Programmable Engine Management Systems are to be used on off-highway racing vehicles, installing the EMS negates the factory cruise control function. WHY YOU WANT THIS EMS FOR YOUR STi Various OEM ETC systems design the accelerator position-to-throttle position transfer function for optimum tailpipe emissions and fuel economy, resulting in slow engine response that delivers a feeling of "lag" from the time you press the pedal to when the engine responds to this input. In other cases, the OEM Drive-By-Wire (DBW) system will deliver a sense of "perceived performance" by providing more open throttle than actual pedal input (for instance, 30% pedal input with 70% throttle opening event response), which could make attempting to pass a vehicle on the racetrack ineffective at best. AEM's ETC unit was designed with throttle response as a priority. It is calibrated to deliver direct 1:1 throttle opening response. Below is a chart with rise time, fall time and throttle position accuracy for the AEM ETC: Parameter Value Closed to Full Throttle (Closed-WOT) Less Than 1/10th second (100 ms) Full Throttle to Closed (WOT-Closed) Less Than 1/10th second (100 ms) Throttle Precision 1/10th Degree Additionally, AEM's WRX STi EMS's eliminate the need to convert back to mechanically actuated throttle body control units, throttle position sensors and throttle blade actuators to attain throttle control when using a stand-alone EMS without an integrated ETC unit on vehicles equipped with OEM DBW systems. ETC CRITICAL SAFETY FEATURES The Firmware for AEM's WRX EMS's are custom-tuned specifically for the corresponding WRX STi models to ensure optimum performance and safety. Since the ETC system uses all of the OEM redundant sensors and wiring, it continuously monitors all sensors and actuators for proper operation. If a fault is detected, the ETC module transitions to a Fail-Safe mode and gracefully disables the throttle body while allowing the engine to continue to run at a high idle (approximately 1500-2000 RPM). This function maintains power-assist braking and steering, allowing the user to safely stop the vehicle. It is important to note that the ETC system's safety and Fail Safe strategies rely on vehicle components as delivered from the manufacturer and include (but are not limited to) wiring, ETC relay, accelerator pedal assembly and throttle body. All of the original components must be installed and functional to ensure both optimum and safe performance of the ETC unit in the EMS. ENGINE MANAGEMENT FEATURES The 30-1820 and 30-1821 EMS's plug directly into 2004 and 2005-'06 WRX STi factory harness and require no additional wiring or hardware for operation. Windows™-compatible software simplifies the manipulation of data and the Tuning Wizard allows users to create a base map specifically for a car's configuration regardless of what type of injectors, non-ETC related sensors, coils or other changes have been made. Additionally, AEM's EMS includes six general-purpose outputs and seven definable switch inputs for the integration of nitrous, water/methanol injection, map switching and more! Please visit the electronics forum on www.aempower.com for more information. EMS FEATURES FOR THE WRX STi Controls Subaru AVCS system: Camshaft advance angle can be accurately controlled to allow quick turbo spool at low RPM and increased flow at high RPM Multiple Fuel Strategies available: MAP sensor, MAF sensor, or TPS sensor can be used for engine load calculations. Allows removal of restrictive OEM MAF sensor Sophisticated Boost Control: Tuner can adjust desired boost based on vehicle speed, high/low boost switch, or throttle position. Closed-loop feedback prevents boost creep and helps achieve target boost level even when conditions change Closed-loop fuel and ignition control: Knock control can adjust fuel and timing to prevent engine damage when detonation is detected. O2 Feedback can adjust fuel to achieve desired AFR. Exhaust Gas Temperature control can adjust fuel to achieve desired EGT Individual Fuel and Ignition trims for each cylinder Internal Datalogging: EMS records any 16 channels at up to 250 samples/second, can be reconfigured for over 10 hours of logging. Datalogger can be activated based on vehicle speed, engine RPM, throttle position, and manifold pressure GENERAL EMS FEATURES Uses all of the factory sensors Fully enabled system—never pay for upgrades! Free software updates on www.aempower.com Fuel table automapping Six general-purpose outputs Seven definable switch inputs Soft-cut rev limiters Two-step launch control Definable knock control Full idle control Four EGT inputs with fuel control Legal in California only for racing vehicles which may never be used upon a highway AEM performance products are Engineered to Outperform. The company manufactures street and race performance products that are unmatched in performance, quality and value. AEM headquarters is located in Hawthorne, CA. www.aempower.com ENJOY! -Rob -Authorized AEM Tuner -DIRECT Master Warehouse Distributor This ad is not endorsed by this member. Please register or login to hide this ad.