High Speed By-Pass

The KINSLER High Speed By-Pass fuel bypass valve (model 3904) is an essential component for high-performance fuel systems that require precise pressure management during transient engine conditions. This valve is particularly suited for racing applications, turbocharged engines, and custom fuel delivery setups where stable fuel pressure is crucial across varying engine loads.

Constructed from gray anodized aluminum, the valve is designed to resist corrosion while maintaining a lightweight profile, weighing just 0.34 pounds. It features 6 AN inlet and outlet ports, which are standard for many performance fuel systems. The high-speed designation indicates that this valve is engineered to respond quickly to pressure spikes, making it ideal for applications with rapid throttle transitions.

This bypass valve is perfect for custom fuel system builders, performance shops, and engine builders looking to integrate aftermarket fuel delivery systems. It is commonly used in conjunction with primary fuel regulators in dual-regulator setups, where one valve manages baseline pressure while the secondary bypass valve provides surge protection.