NIRA i3+NIRA i3+ HandbookHandbook

1 NIRA i3+NIRA i3+NIRA i3+NIRA i3+ HandbookHandbookHandbookHandbook 2005-2007 Nira Control AB 2 Copyright 2005 Copyright 2005 Copyright 2005 Copyright 2005----2007200720072007 This handbook is protected by copyright laws. It may not be redistributed in any form without written consent of Nira Control AB. RelRelRelRelease 200ease 200ease 200ease 2007777----00007777----31313131 The purpose of this manual is to serve as a guide during installation and mapping of NIRA i3+. Descriptions, content and specifications in this manual may be changed at any time. This manual could contain errors therefore it should not be regarded as a definitive installation guide. Nira Control AB is not responsible for any personal or property damages due to errors in this manual.

2 Misuse of NIRA i3+ and/or NIRA rk can cause severe personal injury and engine damage. Nira Control AB is not responsible for any injuries, accidents or damages due to misuse or ignorance. Repairs of NIRA i3+, replacement of parts, will affect the safety of the product and are not allowed under any circumstances. Nira Control AB is not responsible for any problems, accidents etc, caused by non-approved parts or repairs not carried out by Nira Control AB. NIRA i3+ must be installed by professional automotive technicians in accordance with the instructions in this manual. NIRA i3+ is only intended for racing use and not for use on public roads. It is not certified for use on vehicles subject to emission standards unless the appropriate waivers have been issued.

3 Please check with the relevant authorities for more information. NIRA rk is protected by applicable software copyright laws. You may not distribute this software without the written consent of Nira Control AB. You may not copy this software. Your purchase of NIRA i3+ includes a single license to use NIRA rk together with NIRA i3+. 2005-2007 Nira Control AB 3 1111 OverviewOverviewOverviewOverview .. 5555 Content of your NIRA i3+ Package .. 5 Glossary .. 7 NIRA i3+ Functionality .. 10 2 Combustion, Lambda and Measurement Principles2 Combustion, Lambda and Measurement Principles2 Combustion, Lambda and Measurement Principles2 Combustion, Lambda and Measurement Principles .. 13131313 Relationship Between A/F and Lambda.

4 13 The Effect of Different Lambda Values .. 14 Measurement Principles .. 15 3 Installing NIRA i3+3 Installing NIRA i3+3 Installing NIRA i3+3 Installing NIRA i3+ .. 16161616 Crank Position Sensor (CKP) with 60-2 lost Trigger Wheel .. 17 Cam Position Sensor (CMP) .. 20 Throttle Position Sensor (TPS) .. 21 Manifold absolute pressure (MAP) and Intake Air Temp (IAT) .. 21 Engine Coolant Temperature Sensor (ECT) .. 23 Intake Air Temperature Sensor (IAT) .. 23 Lambda Sensor .. 24 Exhaust Gas Temperature Sensor, NIRA EGTC .. 25 Anti Lag System (ALS) Switch .. 26 Launch Control Button .. 26 Flat Shift Switch .. 26 Aux Inputs .. 26 Ignition .. 27 Fuel pressure Regulator (FPR) .. 28 Fuel Injectors .. 28 Boost pressure Control Valve.

5 32 IAC (Idle Air Control) .. 35 Fuel Pump Relay .. 36 Tachometer .. 37 ALS Solenoid .. 37 Aux Outputs .. 37 Mounting NIRA i3+ in the Car .. 38 4 NIRA rk Software4 NIRA rk Software4 NIRA rk Software4 NIRA rk 40404040 Installation of NIRA rk .. 40 Getting Started .. 41 2005-2007 Nira Control AB 4 Using NIRA rk .. 44 Parameters .. 46 Gauges .. 59 Logging .. 61 Other Functions .. 65 5 Starting the Engine5 Starting the Engine5 Starting the Engine5 Starting the Engine .. 66666666 Setting Up Parameters Offline .. 66 Going Online .. 75 Quick Troubleshooting Guide .. 78 Other Adjustments .. 79 6 Mapping your Engine Using NIRA rk6 Mapping your Engine Using NIRA rk6 Mapping your Engine Using NIRA rk6 Mapping your Engine Using NIRA rk.

6 79797979 Tables .. 79 Mapping Ignition .. 80 Mapping Fuel .. 80 The Engine Runs Unevenly or Stalls .. 89 Adjusting the Boost pressure 89 RPM Limit .. 96 IAC Idle Speed 97 ALS response system .. 99 Launch Control .. 101 Flat Shift .. 102 Aux inputs/outputs .. 104 FlexiPorts .. 106 7 Electrical Specifications7 Electrical Specifications7 Electrical Specifications7 Electrical Specifications .. 113113113113 Electro Magnetic Compatibility, EMC .. 113 Power supply .. 113 Inputs .. 113 Outputs .. 114 2005-2007 Nira Control AB 5 1111 OverviewOverviewOverviewOverview NIRA i3+ is a sophisticated electronic engine management system developed specifically for racing. NIRA i3+ controls ignition, fuel injection, idle speed, boost pressure and several other engine functions.

7 It can be used with many different types of engines. Content of your Content of your Content of your Content of your NIRA i3+NIRA i3+NIRA i3+NIRA i3+ PackagePackagePackagePackage When you purchased NIRA i3+, you should have received the following: NIRA i3+ Wiring harness CD with NIRA rk mapping software Serial cable NIRA i3+NIRA i3+NIRA i3+NIRA i3+ NIRA i3+ is a highly sophisticated, dual microprocessor based engine management system designed for motorsport applications. It controls ignition, fuel injection, boost pressure , idle speed and several other engine functions. NIRA i3+ offers an unusual level of flexibility in how input signals are interpreted and processed. It also gives you significant control over the mapping of the output signals.

8 This allows NIRA i3+ to work with many different sensors, actuators and engine types. Setup, configuration and programming of NIRA i3+ is done via the NIRA rk software. Wiring HarnessWiring HarnessWiring HarnessWiring Harness One end of the wiring harness connects to NIRA i3+ via two pre-installed connectors. One connector has 30 pins, the other has 22 pins. 2005-2007 Nira Control AB 6 The other end of the harness is a set of pigtails used for connecting power, ground, sensors and actuators. To simplify the work of installing the harness, each wire in the harness is marked every 70 mm (~3 ) with its function in clear text. This makes it possible to cut the wire to desired length and still read its function. NIRA rkNIRA rkNIRA rkNIRA rk NIRA rk is the mapping software that allows you to setup and configure a large number of parameters in NIRA i3+.

9 It is designed to run on a PC using the Windows operating system and communicates with NIRA i3+ via a serial connection. The many functions of NIRA rk are described in detail starting in chapter 4. NIRA rk is protected by applicable software copyright laws in your country. You may not distribute this software without the express written consent of NIRA Control AB. You may not copy this software other than for personal use. Your purchase of NIRA i3+ includes a single license to use NIRA rk together with NIRA i3+. Serial CableSerial CableSerial CableSerial Cable The serial cable connects NIRA i3+ to the PC running the NIRA rk software. If your PC only has USB ports, you will need to purchase a USB-to-COM port adapter. These are widely available.

10 2005-2007 Nira Control AB 7 GlossaryGlossaryGlossaryGlossary absolute pressureAbsolute pressureAbsolute pressureAbsolute pressure absolute pressure is measured starting at 0kPa. This is the pressure in vacuum. At sea-level the absolute pressure is approximately 100kPa, +/- 10kPa depending on the weather (high or low pressure .) AlfaAlfaAlfaAlfa----NNNN Methodology to compute the amount of fuel to inject based only on rpm and throttle angle. Sometimes referred to as throttle mapped. This mapping approach can be difficult to use and requires a high resolution throttle position sensor potentiometer. On engines with aggressive camshaft profiles, the pressure in the intake manifold fluctuates significantly. In such cases it s not possible to get a stable MAP reading and throttle mapping is the only workable approach.