Nitrous Oxide Micro Switch Bracket
Nitrous oxide micro switch brackets are precision mounting components that play a critical role in the safe and effective operation of nitrous injection systems. These micro throttle switches 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 coming on unless the vehicle is at wide open throttle (WOT). By mounting directly to the throttle linkage of carburetors or throttle bodies, these brackets ensure that nitrous oxide is only injected when intended, protecting your engine from potentially damaging premature activation.
How Micro Switch Brackets Work
Microswitch brackets enable performance enthusiasts to activate solenoids, fuel pumps, and most anything else in a nitrous system. When the throttle is opened to the preset position—typically full throttle—the mechanical linkage depresses the microswitch, completing the electrical circuit that activates the nitrous solenoids. This mechanical fail-safe approach provides far more reliability than purely electronic controls, as it physically confirms throttle position before delivering potentially engine-stressing power increases. Many racers employ these switches as a dual-layer safety mechanism alongside manual arming switches, ensuring nitrous activation only occurs under controlled, full-throttle conditions.
Construction and Design Considerations
Quality micro switch brackets are engineered to eliminate flexing and bending under the rapid throttle movements experienced during racing and spirited driving. Billet designs will not flex or bend allowing consistent nitrous activation every time. Premium brackets are typically constructed from precision machined solid 6061 billet aluminum and black anodized for corrosion resistance, combining lightweight construction with the structural rigidity needed for repeatable performance. Many feature slotted mounting positions that allow fine-tuning of the activation point, giving tuners precise control over when the nitrous system engages during throttle travel.
Installation and Tuning
Proper installation of a nitrous micro switch bracket requires careful attention to throttle geometry and switch positioning. The bracket must be mounted so the switch activates at exactly the right moment—too early risks activating nitrous before the engine is ready, while too late defeats the purpose of maximum-power delivery. Most applications involve mounting to Holley-style carburetors, though application-specific brackets exist for various throttle body and carburetor configurations. Tuners typically test activation points with the engine off, verifying that the switch only closes at full throttle while maintaining adequate clearance throughout the throttle's range of motion.
Top Brands for Nitrous Micro Switch Brackets
When shopping for micro switch brackets, brand reputation matters significantly. NOS stands as the pioneering name in nitrous oxide systems, having established the category in the late 1970s and continuing to develop advanced activation components. NOS quickly became known for producing easy-to-install kits made from the highest quality material available, and their micro switch bracket kits feature precision-machined billet aluminum construction with laser-engraved logos and slotted adjustment positions for optimal fitment across a wide range of applications.