ScienceofSpeed Engine Management System Comparison - NSX, 1991-94

The comparison table below details the engine management system options available from ScienceofSpeed for 1991-94 NSX.

  ScienceofSpeed AEM Series 2 EMS - NSX, 1991-94 M/T ScienceofSpeed AEM Infinity Engine Management System - NSX, 1995-05 ScienceofSpeed AEM Infinity Engine Management System - NSX, 1991-94
  ScienceofSpeed Series 2 AEM Engine Management System ScienceofSpeed Infinity-6 Engine Management System ScienceofSpeed Infinity-8 Engine Management System
ECU based on AEM Series 2 AEM Infinity-6 AEM Infinity-8
Stand-alone fuel, ignition, and VTEC control & feedback. Yes. Pulse width based fuel control. Includes O2 sensor & knock feedbank, no fuel pressure feedback. Yes. Advanced volumetric fuel control. Includes O2 sensor, knock, and fuel pressure feedback. Yes. Advanced volumetric fuel control. Includes O2 sensor, knock, and fuel pressure feedback.
Available Analog Inputs 9 available - choose from wideband oxygen sensor (2 recommended), fuel pressure, oil pressure, oil temperature, boost control switch, or any other 0-5V sensors. 6 available - choose from wideband oxygen sensor (requires one in additional to one built-in for naturally aspirated, supercharged, or twin turbocharged applications), fuel pressure, oil pressure, oil temperature, boost control switch, traction control switch, or any other 0-5V sensors. 7 available - fuel pressure, oil pressure, oil temperature, boost control switch, traction control switch, or any other 0-5V sensors.
Available Switched Inputs 3 available - choose from FlexFuel, or any other switched ground inputs. 1 available - choose from FlexFuel or any other switched ground input. 2 available - choose from FlexFuel or any other switched ground input.
Available Outputs  6 available - choose from  boost control, or any other switched ground ouputs and one +12V output (1 amp max ea).  2 available - choose from  boost control, traction control lamp, or any other switched ground ouput (1 amp max).  4 available - choose from  boost control, traction control lamp, or any other switched ground ouput and one +12V output (1 amp max ea).
FlexFuel Supported Yes. Yes. Yes.
Cruise Control Supported Yes. Yes. Yes.
Factory Traction Control Supported No. No. No.
Wideband Oxygen Sensor Not built in, 2 controllers/sensors required for naturally aspirated, supercharged, or twin turbocharged applications. 1 built in, additional controller/sensor required for naturally aspirated, supercharged, or twin turbocharged applications. For dedicated CAN input use AEM part# 30-0310 (recommended) 2 built in, no additional required.
Built-in Traction Control Limited engine acceleration rate based traction control (does not monitor wheel speed) - requires extensive vehicle specific tuning and testing to configure. Advanced wheel speed feedback based traction control built in. Pre-configured and easy to set up. Compatible with factory traction control button, or aftermarket multi-position switch. Advanced wheel speed feedback based traction control built in. Pre-configured and easy to set up. Compatible with factory traction control button, or aftermarket multi-position switch.
Traction Control Wheel Speed Sensors Not supported. 1 ground speed (front left), driven speed calculated from transmission speed sensors. 4 wheel - uses independent wheel speed sensors from all four corners.
Idle control Yes. Supports factory idle valve. Yes. Supports factory idle valve. Yes. Supports factory idle valve.
Engine protection. Yes. Supports coolant temperature, oil pressure, fuel pressure, and O2 sensor. Yes. Supports coolant temperature, oil pressure, oil temperature, fuel pressure, and O2 sensor. Yes. Supports coolant temperature, oil pressure, oil temperature, fuel pressure, and O2 sensor.
Price $1,695.00
$2,065.50 with two wideband UEGO controller/sensors
$1,895.00
$2,080.25 with one wideband UEGO controller/sensor
$2,995.00
Notes   Compared to the AEM Series 2 based solution, the Infinity-6 offers advanced easy to configure traction control. Compared to the AEM Infinity-6 based solution, the Infinity-8 offers built-in high speed wideband controller for two cylinder banks, additional inputs & outputs, and four wheel speed sensors for traction control.