SKU: HLY557-200
UPC: 090127683446
MPN: 557-200
The Holley Solenoid Boost Control (Model HLY557-200) is a precision 3-port boost management solenoid designed specifically for high-performance turbocharged and supercharged EFI systems, particularly those utilizing Holley Dominator and HP EFI platforms. This component is essential for tuners and engine builders who require precise boost regulation to optimize engine performance.
By electronically controlling boost pressure delivery, the solenoid allows for programmable boost curves that enhance power delivery across the RPM range while safeguarding engine internals from over-boost conditions. The 3-port design directs boost pressure signals to the wastegate or blow-off valve, enabling dynamic modulation of turbocharger output based on real-time data inputs.
Performance builders, professional tuners, and serious enthusiasts will find this solenoid invaluable for building competition engines that require reliable and programmable boost management. It integrates seamlessly with Holley's advanced closed-loop boost control logic, ensuring smooth transitions between load conditions and precise target boost maintenance.
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