Looking for a reliable nitrous purge kit to vent air and vapor before activation? This guide highlights five well-matched options, focusing on ease of installation, consistent purge results, and compatibility with common 4AN and 6AN nitrous systems. The selections are suited for hobbyists dialing in performance, as well as enthusiasts seeking cleaner, faster nitrous delivery. The table below provides quick comparisons to help you choose.
| Product | Brand | Best For |
|---|---|---|
| Nitrous Express ML15600 Purge Valve Kit | Nitrous Express | Vehicle-specific installs; push-button activation; 04AN manifold adapter |
| Nitrous Express 15599 Simulator Full Show Purge Kit | Nitrous Express | Show-quality purge with full hardware set; ready-made kit |
| Purge Kit Universal 4AN Single Outlet CFN-1700 | Cold Fusion Nitrous | Universal 4AN systems; includes solenoid and fittings |
| 16030-4AN Line Purge Valve Kit (ZEZHIMI) | ZEZHIMI | Line purge with lag reduction; complete all-in-one kit |
| NOS 16037 Intimidator Illuminated Dual LED Purge Kit | NOS | Illuminated purge for nighttime visibility; flashy, high-visibility purge |
Nitrous Express ML15600 Nitrous Purge Valve Kit
The ML15600 kit targets vehicle-specific installations with a push-button activation and a 04AN manifold adapter. It is designed for direct integration into standard nitrous lines and vent tubes, simplifying purge execution. This option is best for buyers who want a compact, US-made purge assembly that aligns with existing 04AN hardware. Potential limitation: ensure the kit matches the exact vehicle and stock manifold setup to avoid fit issues.
Nitrous Express ML15601 Nitrous Purge Valve Kit
This ML15601 kit mirrors the ML15600 concept with a 06AN manifold adapter and push-button activation. It is best for buyers who need a 06AN-compatible purge solution and a ready-to-install valve kit that pairs with common performance setups. Limitation: verify 06AN compatibility with your current line and manifold to ensure a clean fit.
Purge Kit Universal 4AN Single Outlet CFN-1700
From Cold Fusion Nitrous, this universal 4AN purge kit includes a CFN solenoid, a 4AN swivel adapter, fittings, and five feet of tubing. It is best for builders seeking a complete purge solution that supports standard 4AN nitrous lines with flexible installation options. A potential drawback is the universal nature, which may require minor adjustments for specific vehicle configurations.
16030-4AN Nitrous Purge Valve Kit (Zymurgoes)
Designed for 4AN nitrous systems, this purge valve kit vent lines to clear trapped gas before activation, improving liquid nitrous delivery efficiency. It includes a purge solenoid, fittings, and stainless steel tubing. Best for systems requiring quicker purge response and reduced lag. Limitation: ensure compatibility with your exact 4AN line setup and available space for mounting the solenoid and tubing.
NOS 16037 Intimidator Illuminated Dual LED Purge Kit
This NOS kit features dual blue LED lights and a 4-foot plume for nighttime visibility, making it a standout for show-oriented builds or nighttime performance runs. Best for buyers who want a visually striking purge that aids alignment in low light. Caution: illuminated purges can add complexity to wiring and require careful routing to avoid interference with other components.
Nitrous Outlet 6AN Purge Kit
Engineered for 6AN main feed lines, this purge kit includes a billet aluminum solenoid and 3 feet of aluminum purge tubing. Best for 6AN builds needing a robust purge solution with direct compatibility to larger-diameter lines. Limitation: primarily suited for 6AN systems; not ideal for 4AN configurations without adapters.
Buying Guide: Key Considerations For Purge Kits
- System compatibility: Verify whether the purge kit supports 4AN or 6AN lines and matches your manifold adapter needs.
- Installation ease: Look for kits with all necessary fittings, hoses, and a straightforward mounting layout for your vehicle.
- Purging effectiveness: Consider how quickly and cleanly the purge clears gas from the feed line to improve activation timing.
- Visual indicators: Illuminated purge kits improve nighttime visibility but add wiring considerations.
- Durability and materials: Aluminum, brass, and stainless components offer better resistance to heat and vibrations in automotive environments.
- Future-proofing: If you plan to upgrade lines or switch to a different AN size, choose a kit with flexible adapters and compatible fittings.
Frequently Asked Questions
- What is the main purpose of a nitrous purge kit?
To vent trapped air and vapor from the nitrous feed line before activation, ensuring faster, cleaner nitrous delivery.
- Which purge kit is best for a 4AN system?
Options like CFN-1700 and the ZEZHIMI 16030-4AN kit are designed for 4AN setups and emphasize line clearing and lag reduction.
- Should I choose an illuminated purge kit?
Illuminated purges help with alignment in low-light conditions but require additional wiring and installation planning.
- Is a universal purge kit acceptable for all vehicles?
Universal kits work, but you may need adaptors or additional fittings to fit specific vehicles and line configurations.
- What should I check before purchasing a purge kit?
Check compatibility with your AN size, required fittings, length of tubing, and whether the kit includes all necessary hardware for your setup.