{"product_id":"4-port-mac-boost-control-solenoid-fr-uni-4port-bcsv","title":"4 Port Mac Boost Control Solenoid (FR-UNI-4PORT-BCSV)","description":"\u003cp\u003eThe Full-Race 4-Port MAC Boost Control Solenoid Valve is designed to precisely manage boost pressure, delivering a clearly defined boost curve and improved response. Unlike a traditional 3-port solenoid, the 4-port design is highly effective in both low boost and high boost applications because it precisely directs pressure to both the open and close ports of your wastegate diaphragm. This functionality allows for a much lighter wastegate spring pressure, enabling better low-gear boost control for increased traction at launch, and perfect high-gear, high-boost control. This capability is commonly referred to as \"boost by gear.\"\n\u003c\/p\u003e\n\u003ch6\u003eFeatures\u003c\/h6\u003e\n\u003cul\u003e\n    \u003cli\u003eDelivers better spool-up time and increased mid-range power.\u003c\/li\u003e\n    \u003cli\u003eProvides superior duty cycle control to accurately hit and hold target boost levels.\u003c\/li\u003e\n    \u003cli\u003eNormally closed design ensures the system defaults to wastegate spring pressure upon failure, preventing over-boosting.\u003c\/li\u003e\n    \u003cli\u003eUses 1\/8-inch NPT fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eNotes\u003c\/h6\u003e\n\u003cul\u003e\n    \u003cli\u003eIf upgrading from a 3-port solenoid, the boost control tables will require re-tuning.\u003c\/li\u003e\n    \u003cli\u003e4-port solenoids require smaller duty cycle changes; PID tables should be dialed down (single-digit numbers) to prevent over-reaction.\u003c\/li\u003e\n    \u003cli\u003eFor B2 EFR frames, the solenoid must be mounted upside down to correctly orient the exhaust port toward the wastegate nipple.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eCompatibility Notes\u003c\/h6\u003e\n\u003cul\u003e\n    \u003cli\u003eIdeal for sealed dual port internal wastegate applications, both internal and external.\u003c\/li\u003e\n    \u003cli\u003eCompatible with Hondata S300, K-Pro, and Flashpro.\u003c\/li\u003e\n    \u003cli\u003eSupports all Pulse Width Modulation (PWM) modulated standalone and piggyback ECUs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecs\u003c\/h6\u003e\n\u003cul\u003e\n    \u003cli\u003eType: 4-Port Boost Control Solenoid Valve (BCSV)\u003c\/li\u003e\n    \u003cli\u003eMAC Part Number: 46A-AA1-JDBA-1BA\u003c\/li\u003e\n    \u003cli\u003ePort Size: 1\/8 inch NPT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Full Race","offers":[{"title":"Default Title","offer_id":42904063737945,"sku":"FR-UNI-4PORT-BCSV","price":98.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8030\/9593\/files\/4port.jpg?v=1765233287","url":"https:\/\/dirtygarage.com\/products\/4-port-mac-boost-control-solenoid-fr-uni-4port-bcsv","provider":"Dirty Garage","version":"1.0","type":"link"}