{"product_id":"aeromotive-efi-fuel-pressure-regulator-adjustable-40-75-psi-boost-referenced-high-flow-compact-design","title":"Aeromotive EFI Fuel Pressure Regulator Adjustable 40–75 PSI — Boost‑Referenced, High‑Flow Compact Design","description":"\u003cp\u003e\u003cstrong\u003eAeromotive's 13129 adjustable EFI fuel pressure regulator precisely controls 40–75 PSI in return-style fuel systems for reliable, tunable fuel delivery.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact, boost-referenced regulator is built for high-performance EFI applications where consistent fuel pressure and clean hose routing matter. Machined and tested using aerospace-inspired processes, it supports high-flow pumps for engines up to 1000 HP, includes an onboard gauge port for accurate setup, and fits tight engine bays with ORB-06 ports.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this regulator keep fuel pressure stable under boost?\u003c\/h3\u003e\n\u003cp\u003eThe regulator uses a boost-referenced vacuum fitting so fuel pressure rises in a 1:1 ratio with boost, preserving the engine's intended fuel curve during forced-induction operation. That relationship helps maintain relative fuel pressure across changing intake manifold conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1:1 boost reference via vacuum port for predictable pressure scaling\u003c\/li\u003e\n  \u003cli\u003eAdjustable setpoint covering 40–75 PSI to match injector and pump needs\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists pressure-related drift at high boost levels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it handle high-flow pumps and big engines?\u003c\/h3\u003e\n\u003cp\u003eYes. The unit is designed for high-flow EFI systems and supports fuel pumps suitable for applications up to 1000 horsepower when properly plumbed. Internal flow passages and ORB-06 port sizing help minimize restrictions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated for high-flow pumps used in large-displacement or boosted engines\u003c\/li\u003e\n  \u003cli\u003eORB-06 inlet and return ports allow efficient hose routing and high flow capacity\u003c\/li\u003e\n  \u003cli\u003eCompact design reduces plumbing complexity in crowded engine bays\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I monitor and tune fuel pressure with this regulator?\u003c\/h3\u003e\n\u003cp\u003eA dedicated 1\/8\" NPT port accepts a fuel pressure gauge, making setup and fine-tuning straightforward. Use the gauge port to verify the setpoint and confirm boost-referenced behavior under road or dyno conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/8\" NPT gauge port for direct pressure readings during calibration\u003c\/li\u003e\n  \u003cli\u003eExternal adjustment for quick pressure changes without disassembly\u003c\/li\u003e\n  \u003cli\u003eClear, repeatable adjustments help match pressure to injectors and ECU strategy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Aeromotive 13129 is aimed at performance builders, tuners, and racers running return-style EFI systems who need a compact, accurately adjustable regulator that handles high flow and behaves predictably under boost. It's ideal for forced-induction engines, street\/strip race cars, and any application where precise fuel pressure control and simple plumbing are priorities.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What pressure range does the Aeromotive 13129 support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The regulator is adjustable from 40 to 75 PSI to suit many EFI setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this model work with boosted engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it’s boost-referenced with a 1:1 rise via the vacuum port for predictable fuel pressure under boost.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Aeromotive","offers":[{"title":"Default Title","offer_id":67585576992953,"sku":"B004084DBU","price":419.74,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/aeromotive-e_-regulator-front-view.jpg?v=1790472380","url":"https:\/\/redleafauto.ca\/products\/aeromotive-efi-fuel-pressure-regulator-adjustable-40-75-psi-boost-referenced-high-flow-compact-design","provider":"Redleaf Auto","version":"1.0","type":"link"}