High-Speed Bypass; 85 - 170 PSI with 6AN fitting

The High-Speed Bypass from Kinsler (Model 3982) is a precision fuel bypass valve designed for high-performance engine builds and custom fuel system tuning. This regulator-style bypass valve is ideal for mechanics and enthusiasts who require accurate fuel pressure control in supercharged, turbocharged, or carbureted race applications.

With an operating pressure range of 85–170 PSI, it is suitable for engines with aggressive fuel mapping and nitrous systems. The valve features a 6AN SAE fitting for secure integration into fuel system plumbing, ensuring a reliable connection.

Engine builders working on street rods, vintage race cars, or modern forced-induction platforms will find this valve beneficial for maintaining stable rail pressure, which is critical for consistent power delivery during performance applications.