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MINI 2-STAGE PROGRESSIVE NITROUS
CONTROLLER
25973NOS, 25974NOS, and Upgrade Kits
INSTALLATION AND OPERATION INSTRUCTIONS
THANK YOU for purchasing the NOS Mini 2-Stage Progressive Controller! Your system is composed of the highest
quality components available. It should provide many miles of trouble-free performance when used correctly. If you have
any questions regarding the performance of your system, call NOS Technical Service at 1-866-464-6553.
NOTICE: Installation of Nitrous Oxide Systems Inc. products signifies that you have read this document and have
agreed to the terms stated within.
e
product as it is received by the purchaser to determine the compatibility of the product with the vehicle or the device the
purchaser intends to install the product on.
Nitrous Oxide Systems Inc. assumes no responsibility for damages occurring from accident, misuse, abuse, improper
installation, improper operation, lack of reasonable care, or all previously stated reasons resulting from incompatibility with
Nitrous Oxide Systems Inc. assumes no responsibility or liability for damages incurred by the use of products
manufactured or sold by Nitrous Oxide Systems Inc. on vehicles used for competition or racing.
Nitrous Oxide Systems Inc. neither recommends nor condones the use of products manufactured or sold by Nitrous Oxide
Systems Inc. on vehicles, which may be driven on public roads or highways, and assumes no responsibility for damages
incurred by such use.
NOS nitrous oxide is legal for use in most states when used in accordance with state and local traffic laws. NOS does not
recommend or condone the use of its products in illegal racing activities.
NOS has not pursued California Air Research Board (CARB) exemptions for these kits, hence, they are not legal for use
on pollution- controlled vehicles in California. A correctly installed NOS nitrous system should not alter the emission
control performance of your vehicle under standard EPA test cycle conditions.
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Summary of Contents for Nos 25973NOS
- Page 1 Systems Inc. on vehicles, which may be driven on public roads or highways, and assumes no responsibility for damages incurred by such use. NOS nitrous oxide is legal for use in most states when used in accordance with state and local traffic laws. NOS does not recommend or condone the use of its products in illegal racing activities.
- Page 2 HAZARDS DEFINED This manual presents step-by-step instructions that describe the process of installing your NOS Mini 2-Stage Progressive Controller. These procedures provide a framework for installation and operation of this kit. Within the instructions, you are advised of potential hazards, pitfalls, and problems to avoid. The following examples explain the various hazard levels: WARNING! Failure to comply with instructions may result in injury or death.
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Page 3: Table Of Contents
Table of Contents Chapter 1 Product Overview ..........................4 Chapter 2 Controller Installation & Wiring ......................4 Chapter 3 Hand-Held Setup..........................7 3.1 Home Screen ............................7 3.2 Main Menu ............................... 8 3.3 Nitrous Configuration ..........................8 3.3.1 System Setup RPM Signal ....................... -
Page 4: Chapter 1 Product Overview
A progressive, 2 stage nitrous system works by pulsing each set of solenoids for a user defined start time, cycle time, and duration. This NOS Mini 2-Stage Progressive Nitrous Controller allows the user to drive the solenoids at different times, to tailor power delivery to the engine as needed. - Page 5 Connecting the NOS Mini 2-Stage Progressive Nitrous Controller to the Touchscreen LCD Connect the NOS Hand-held to the main harness. This is a simple plug and play connection. If you are going to permanently leave the hand-held in the vehicle, you will need to find a factory grommet in your firewall to pass the Display CAN bus connect through and secure the excess wire away from hazards.
- Page 6 Unused Wires As you finish the installation of your NOS Mini 2-Stage Progressive Nitrous Controller you may have unused wires. These wires need to be properly taken care of before installation is considered complete. The preferred option is to remove them from the connector and insert a weather proof plug in their place.
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Page 7: Chapter 3 Hand-Held Setup
3.1 Home Screen The main screen of the NOS Mini 2-Stage Progressive Nitrous Controller displays the engine RPM, Bottle Pressure (if equipped), Stage 1 & Stage 2 activation RPM via colored bars (Blue = Stage 1, Yellow = Stage 2), and Stage 1 & Stage 2 ON/OFF display (ON is only displayed when the solenoids are actively being trigged). -
Page 8: Main Menu
3.3.1 System Setup RPM Signal System setup allows you to select the type of RPM signal and set up the TPS via the TPS Autoset app. The NOS Mini 2- Stage Progressive Nitrous Controller supports the following RPM Signals: Individual Coil per Cylinder (Coil on Plug) -
Page 9: System Setup Tps Autoset
3.3.2 System Setup TPS Autoset Click on the TPS Autoset box. Notice the TPS voltage display at the top, this is the voltage when the throttle body is at its resting state. Click on the start button. Momentarily press the accelerator pedal completely to the floor and release, to reach 100% throttle the unit only needs to see WOT (wide open throttle) briefly to configure the WOT voltage. - Page 10 3.3.3.1.1 Setup - Ramp Builder The Ramp Builder App, allows you to easily create a linear curve which the NOS Mini 2-Stage Progressive Nitrous Controller will use to progressively introduce the nitrous/fuel into the engine. The controller will need the following information to properly generate the curve.
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Page 11: Stage 1 & Stage 2 - Graph
Ramp Builder App. will generate a linear curve based on your inputs and display it in graph menu. Using the arrows, you can select 15 different points and manually slide them up and down to create your own curve. NOTE: NOS recommends only advanced users use this feature as improper tuning can result in engine damage. -
Page 12: Save/Load Tune
The NOS Mini 2-Stage Progressive Nitrous Controller has the ability to store tunes. For custom tunes, simply configure your tune using the steps shown above. Insert a micro SD card into the slot on the hand-held and save. The NOS Engineering Team has prepared tunes which are available on the product page of the vehicle specific kit that you purchased. -
Page 13: Controller Setting
Deleting Tunes To delete a tune, select it in the Save/Load Tune Menu and press delete. The tune will be removed from the SD card. Upload Tune to Controller Delete Tune from SD Card Save Tune to SD Card 3.5 Controller Setting The controller settings menu allows you to run the Touch Screen Calibration App, view/upload the controller firmware, and configure the main dash screen. -
Page 14: Controller Info/Firmware Upgrade
Download the firmware and place it in the main folder of the SD card. Insert the SD card into the slot and power on the NOS mini 2-stage. It will automatically detect the new firmware and update accordingly. To update the controller firmware, you must navigate to the Contr. Settings menu, select Controller Info, and then select update firmware. -
Page 15: Chapter 5 System Operation & Testing
PRESTART CHECKLIST Before starting the engine, double check for leaks, proper wire routing, any wiring hazards, loose nuts, and bolts. This is a great time to visually inspect the overall NOS Mini 2-Stage Progressive Nitrous Controller install. Verify Wiring. White wire is connected to a switched 12V source from the battery or fuse box... - Page 16 TECHNICAL SUPPORT: 1-866-464-6553 © NOS Nitrous Oxide Systems, Inc. All rights reserved. Tous Droits Réservés. 199R11937 Revision Date: 10-17-19...
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