AN to Barb Fittings

Many builders worry about hoses slipping off under high fuel pressure or during heavy vibration. Standard smooth adapters lack the necessary surface friction, whereas Evil Energy fittings utilize a precision CNC-machined hose barb with a 'beaded' design. This structure creates multiple mechanical bite points inside the hose. When secured with a clamp, this barbed fitting provides immense retention force, effectively preventing hose creep caused by fuel pressure spikes. Choosing our an to barb fitting is the industry standard for safe, track-ready an to barb transitions.

Beginners often confuse AN sizes with actual hose measurements, leading to an an barb fitting that is too loose or impossible to install. Matching the ID is critical for a leak-free seal. Our barbed hose fitting line is engineered to fit standard automotive hose IDs. For example, an AN6 AN Barb fitting typically matches a 3/8-inch (9.5mm) ID hose. Because the hose barb must be slightly larger than the hose ID to create a seal, installation may require effort. We recommend applying a small amount of assembly lube to the barbed fitting to prevent tearing the inner liner of the hose during your an to barb setup.

After sliding the hose onto the AN Barb fitting, users are often unsure which clamp provides the most reliable security. To ensure the absolute safety of your an to barb fitting, we recommend using high-quality worm gear clamps or spring-loaded clamps. Since Evil Energy AN fittings are made from high-strength 6061-T6 aluminum, they can withstand significant radial pressure from heavy-duty clamps. When installing your barbed hose fitting, ensure the clamp is positioned behind the raised bead of the hose barb to utilize the fitting’s geometry for maximum blow-off resistance.

Modern racing fuels like E85 are highly corrosive to untreated aluminum and standard coatings. Fully compatible. Every an to barb adapter in the Evil Energy fittings catalog is constructed from 6061-T6 aluminum and treated with a hard-anodized finish. This process creates a stable protective layer on the barbed fitting surface, resisting chemical corrosion from E85, ethanol, and diesel. Your barbed hose fitting will maintain its structural integrity and thread precision even in the harshest chemical environments.

A builder notices a faint fuel smell or dampness at the an to barb junction despite a tight clamp. This usually stems from two issues: an aged, hardened hose that cannot conform to the hose barb contours, or an incorrect AN Barb fitting size. If the barbed hose fitting is too small for the hose ID, even extreme clamping force won't bridge the gap. Ensure your hose ID matches the technical specs of our Evil Energy AN fittings. Additionally, make sure the hose is cut squarely and pushed all the way to the base of the an to barb fitting shoulder.