ScienceofSpeed Engine Management System Comparison - NSX, 1995-05

The comparison table below details the engine management system options available from ScienceofSpeed for 1995-05 NSX.

  AEM F/IC Fuel/Ignition Controller & Adapter Harness ScienceofSpeed AEM Series 2 EMS - NSX, 1995-05 ScienceofSpeed AEM Infinity Engine Management System - NSX, 1995-05 ScienceofSpeed AEM Infinity Engine Management System - NSX, 1991-94
  AEM F/IC Engine Management System ScienceofSpeed Series 2 AEM Engine Management System ScienceofSpeed Infinity-6 Engine Management System ScienceofSpeed Infinity-8 Engine Management System
ECU based on AEM F/IC AEM Series 2 AEM Infinity-6 AEM Infinity-8
Stand-alone fuel, ignition, and VTEC control & feedback. No. Works with factory ECU to modify fuel injector pulse and retard ignition. 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 Not supported. 0-5V: 7 available - choose from fuel pressure, oil pressure, boost control switch, or any other 0-5V sensors.

temperature: 1 available (oil temperature, etc).

wideband O2: 2 can be added to dedicated inputs or used for other 0-5V analog inputs.
0-5V: 4 available - choose from fuel pressure, oil pressure, boost control switch, traction control switch, or any other 0-5V sensors.

temperature: 1 available (oil temperature, etc).

wideband O2: 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)
0-5V: 4 available - choose from fuel pressure, oil pressure, oil temperature, boost control switch, traction control switch, or any other 0-5V sensors.

temperature: 1 available (oil temperature, etc).

wideband O2: 2 built in.
Available Switched Inputs Not supported. 3 available - choose from FlexFuel, or any other switched ground inputs. 1 available - choose from FlexFuel or any other switched ground input. 1 available - choose from FlexFuel or any other switched ground input.
Available Outputs  Not supported. Ground: 5 available - choose from  boost control, traction control lamp, or any other switched ground ouput

+12V: 1 available
Ground: 1 available - choose from  boost control, traction control lamp, or any other switched ground ouput

+12V: 1 available
Ground: 3 available - choose from  boost control, traction control lamp, or any other switched ground ouput

+12V: 1 available
FlexFuel Supported Not supported. Yes. Yes. Yes.
Cruise Control Supported Yes. Yes. No. No.
Factory Traction Control Supported Yes. No. No. No.
Wideband Oxygen Sensor Not supported. 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. 2 built in, no additional required.
Built-in Traction Control Not supported. 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. 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.
Throttle & Idle control Factory ECU controls throttle & idle. Factory ECU controls throttle & idle. Note: factory idle control is programmed in to the factory ECU based on factory powertrain. Modifications such as lighter clutch/flywheel may cause stalling on deceleration (such as coming to a stop). This can be addressed through driving techniques such as clutching in before neutral. Idle control valve can be added for independent Full control of throttle and idle with Infinity. Full control of throttle and idle with Infinity.
OBD Supported Yes. Yes. Check engine light controlled by ECU. System can be scanned with OBD scanner. Note that there will always be DTC codes present and readiness monitors will always state "not ready" due to the dual-ECU environment. No. Check engine light controlled by ECU. No. Check engine light controlled by ECU.
Engine protection Not supported. 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 $641.83 (with harness) $1,895.00
$2,390.00 with two wideband UEGO controller/sensors & MAP sensor
$2,345.00
$2,530.25 with one wideband UEGO controller/sensor
$3,495.00
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.