---
title: VSS and Gear Detection
description: 
published: true
date: 2021-01-20T11:46:15.545Z
tags: gear detection, speed, tuning, vss
editor: markdown
dateCreated: 2020-05-12T02:08:21.817Z
---

)# VSS and Gear Detection
Speeduino contains a 2 step nitrous control system for controlling valves and making fueling adjustments for dry setups. 
The 2 stages operate independantly and can overlap (ie both run at the same time) if needed. 

![vss_settings.png](/img/accessories/vss_settings.png)![vss_settings.png]

## VSS Calibration
- **Pulses Per KM/Mile:**
- **Smoothing Factor:** 

## Gear Detection