Nitrous Oxide Micro Switch Bracket
What Is a Nitrous Oxide Micro Switch Bracket?
A nitrous oxide micro switch bracket is a small but mission-critical component in any nitrous injection system. Its job is to securely mount a micro throttle switch to your carburetor or throttle body so the switch can sense throttle position and trigger your nitrous system at exactly the right moment. Without a solid, properly positioned bracket, even the best nitrous setup can suffer from erratic or unintended activation — both costly and potentially dangerous.
How Micro Switch Brackets Work
Precise throttle-position sensing is at the heart of a safe and effective nitrous system. Nitrous oxide micro switch brackets hold the micro switch in a fixed relationship to the throttle linkage. A micro throttle switch can be used as either the primary method of activating a nitrous system, or as a safety device — in conjunction with another switch to prevent nitrous from engaging unless the vehicle is at wide open throttle (WOT). This dual-role capability means the bracket and switch together serve both performance and safety functions in a single, compact package.
The quality of the bracket itself matters enormously. A poorly made bracket that flexes or shifts under engine vibration or heat can cause the micro switch to trigger at the wrong throttle position — wasting nitrous, or worse, activating the system prematurely. That's why serious builders choose brackets precision-machined from rigid materials like billet aluminum, which eliminate flex and ensure the switch fires with consistency lap after lap, pass after pass.
What to Look for When Shopping
- Material and construction: Billet aluminum brackets offer the best rigidity and corrosion resistance. Look for black anodized finishes that stand up to the harsh underhood environment.
- Carburetor or throttle body compatibility: Brackets are often designed for specific carb families — such as Holley 4150/4500-series or Dominator carburetors — so confirm fitment before purchasing.
- Adjustability: Slotted mounting positions allow fine-tuning of the switch activation point during installation, making setup far less frustrating.
- Kit vs. bracket only: Some options include the micro switch; others are bracket-only. Know what your build already has before ordering.
- Off-road use compliance: Many nitrous components are designed for racing and off-road use only. Always verify the emissions status of any part for your intended application.
Top Brands in Nitrous Oxide Micro Switch Brackets
NOS (Nitrous Oxide Systems) is the dominant name in this category, and for good reason. NOS pioneered automotive nitrous injection in the 1970s and has remained the industry benchmark ever since — NOS quickly became known for producing easy-to-install kits made from the highest quality material available. Their billet micro switch bracket kits are precision-machined from solid 6061 billet aluminum, black anodized for corrosion resistance, and feature slotted mounting positions for precise adjustability. Whether you're building a bracket-legal street/strip car around a Holley 4150 or stepping up to a Gen 3 Dominator, NOS has a bracket solution engineered to keep your activation consistent and your system reliable.