Adjustable Fuel Pressure Regulator for 1985-1992 GM TPI (Camaro, Firebird & Corvette)
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Take total control over your TPI fuel system. This high-performance Adjustable Fuel Pressure Regulator (AFPR) is designed specifically for the 1985-1992 GM TPI (5.0L & 5.7L). It allows for precise fuel pressure adjustments, making it an essential component for tuning modified engines, optimizing air-to-fuel ratios, and maximizing the performance of your Bosch upgrade injectors
Precision Tuning for Tuned Port Injection
The factory fuel pressure regulator on 1985-1992 GM engines is non-adjustable and often fails or loses spring tension over time. Our Adjustable Fuel Pressure Regulator allows you to increase or decrease fuel rail pressure to compensate for engine modifications such as high-flow injectors, camshaft upgrades, or intake manifold porting.
Key Features & Benefits:
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Direct Bolt-On Fitment: Engineered as a direct replacement for the factory regulator cap on the TPI fuel rail. No cutting or permanent modifications required.
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Dial-In Your Performance: Easily adjust fuel pressure with a simple turn of a screw to solve "lean" conditions or to optimize for higher-flow 24lb, 30lb, or 36lb injector sets.
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Improved Throttle Response: Maintaining consistent, correct fuel pressure ensures better atomization and crisper response across the entire RPM range.
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Premium Construction: Built with high-quality materials and a heavy-duty diaphragm to withstand the pressures of modern high-output fuel pumps.
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Compatibility: Works seamlessly with all 1985-1992 TPI fuel rails found on the 305ci (5.0L) and 350ci (5.7L) V8 engines.
Vehicle Fitment:
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Chevrolet Camaro: 1985–1992 (5.0L & 5.7L TPI)
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Pontiac Firebird / Trans Am: 1985–1992 (5.0L & 5.7L TPI)
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Chevrolet Corvette: 1985–1991 (5.7L L98 TPI)
