SKU: HLY554-115
UPC: 090127683507
MPN: 554-115
The Solenoid Driver Module Water/Methanol 2-Channel by Holley EFI is a high-current peak and hold module engineered for precision fuel and auxiliary fluid injection control in performance and modified engine applications. This component is designed for users who demand accurate solenoid actuation in water/methanol injection systems, where reliable pulse timing and current management are critical to engine protection and performance gains. Built for professional tuners, engine builders, and serious enthusiasts, this dual-channel driver eliminates guesswork in injection system operation.
Operating as a standalone solenoid driver within the Holley EFI ecosystem, the 2-channel module delivers peak current to command solenoids with precision timing while intelligently reducing hold current to minimize heat buildup and electrical demand on the vehicle's charging system. The high-current design ensures snap-action solenoid response, critical for consistent injection pulses across the RPM range. Its compact form factor—measuring 4.35 x 3.3 x 6.95 inches and weighing just 0.98 lbs—allows flexible mounting in tight engine bay configurations without sacrificing thermal dissipation or electrical isolation from other fuel system components.
This module is ideal for turbocharged and supercharged platforms running Holley EFI engine management systems that integrate water/methanol injection for detonation suppression and thermal management. Installers benefit from its plug-and-play integration with Holley's software ecosystem and industry-standard automotive connectors. Proper installation requires integration into a complete fuel system strategy and should be paired with quality fuel injectors and tuning software to unlock full capability; compatibility verification with your specific EFI controller and injection pump is essential before purchase.
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