Nos 25973NOS - User Manual

1
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.

Summary

Hazards Defined

Chapter 1 Product Overview

Chapter 2 Controller Installation & Wiring

Grounds

Details proper grounding procedures for the progressive nitrous controller and its components.

Unused Wires

Explains how to properly manage unused wires after installation to prevent issues.

Pin Removal

Details the recommended method for removing pins from connectors for unused wires.

Trim and Wrap Wire

Describes the procedure for trimming and heat-shrinking wires for a clean installation.

Chapter 3 Hand-Held Setup

Home Screen

Details the main screen display of the controller, showing RPM, bottle pressure, and stage status.

Main Menu

Navigates the controller's main menu, allowing access to setup and configuration options.

System Setup - RPM Signal

Configures the RPM signal type for accurate engine speed detection for stage activation.

System Setup - TPS Autoset

Guides users through setting up the Throttle Position Sensor (TPS) for activation based on throttle input.

System Setup - Stage 1 & Stage 2

Configures parameters for Stage 1 and Stage 2 nitrous activation, including timing and ramp profiles.

Save;Load Tune

Instructions for saving custom tunes to an SD card and downloading pre-made tunes from NOS.

Touch Calibrate

Calibrates the hand-held LCD touch screen for accurate input response.

Controller Info;Firmware Upgrade

Displays controller information and provides steps for updating the firmware via SD card.

Dash Setup

Customizes the main display, including RPM limits and bottle pressure display settings.

Chapter 4 Hand-Held & Controller Firmware Update

Chapter 5 System Operation & Testing

Initial Testing & Verification

Outlines procedures for initial testing, including TPS Autoset and RPM signal verification.

Nos 25973NOS Specifications

General

Brand	Nos
Model	25973NOS
Category	Controller
Language	English