Radium Engineering Fuel System Parts, Rails & Regulators

What This Collection Covers

Radium Engineering builds fuel delivery hardware, catch cans, and billet fittings for platforms including Honda, Mazda RX-7 and RX-8, Mitsubishi Evo, Nissan 240SX and 350Z, Toyota Supra, BMW E36 and E46, Ford Coyote and Mustang, and Corvette C7 and Z06. This collection covers the parts needed to build a reliable high flow fuel system for naturally aspirated, turbocharged, and flex fuel applications.

Categories Included

Fuel rails and fuel rail kits, adjustable and fixed fuel pressure regulators, surge tanks and fuel hanger assemblies, oil and air oil separator catch cans, AN fittings and adapters, and platform specific fuel system kits.

Fuel Rails and Fuel Pressure Regulators

Radium fuel rails are machined to accept high impedance injectors and provide consistent fuel rail pressure under sustained high horsepower and boost. Adjustable fuel pressure regulators allow tuners to set base fuel pressure precisely to match injector sizing and target air fuel ratios across naturally aspirated and forced induction builds.

Matching Fuel Rails to Injector Size

Confirm injector style and thread pitch before ordering a fuel rail, since Radium fuel rails are engineered around specific injector families and will not universally fit every aftermarket injector on the market.

Surge Tanks and Fuel Hangers

Surge tanks maintain a consistent fuel supply to the engine during hard cornering, braking, and high G maneuvers where fuel can slosh away from the factory in tank pump pickup. Fuel hanger assemblies integrate a surge tank, pump mounting, and fittings into a single unit designed to fit inside the factory fuel tank on supported platforms.

Why Surge Tanks Matter for Track Use

Vehicles used for road racing or autocross are especially prone to momentary fuel starvation without a surge tank, since sustained lateral G forces can uncover the factory pickup and cause a lean condition under load.

Catch Cans and AN Fittings

Catch cans separate oil and moisture from crankcase and PCV gasses before they reach the intake tract, protecting intercoolers, throttle bodies, and intake valves from oil fouling on both naturally aspirated and turbocharged engines. Radium AN fittings and adapters are used throughout their fuel system and catch can lineup to build a complete, leak free installation.

Choosing a Catch Can Configuration

Catch can kits vary by whether they route the PCV side, the valve cover breather side, or both, so confirm which vacuum or breather lines the kit is designed to intercept for the specific engine platform.

Radium Engineering Platform Coverage

• Honda and Acura. Fuel rails, regulators, and catch cans for K series and B series platforms
• Mazda RX-7 and RX-8. Fuel system components engineered for rotary specific fuel delivery needs
• Mitsubishi Evo. Fuel hangers, surge tanks, and fuel rail kits for 4G63 platforms
• Nissan 240SX, S-chassis, and 350Z. Fuel system kits and catch cans for SR20 and VQ platforms
• Toyota Supra. Fuel delivery components for 2JZ and A90 platforms
• BMW E36 and E46. Fuel system and catch can solutions for M50 through S54 platforms
• Ford Coyote and Mustang. Fuel rails and catch cans for 5.0L Coyote applications
• Corvette C7 and Z06. Fuel system and catch can components for LT1 and LT4 platforms

How to Choose the Correct Radium Engineering Part

• Confirm the exact year, make, model, trim, and engine before ordering any fuel system component
• Match fuel rails and regulators to the injector style already installed or planned for the build
• Decide whether a surge tank or fuel hanger assembly is needed based on intended track or street use
• Confirm which breather or PCV routing a catch can kit is designed to intercept
• Check AN fitting sizes against existing fuel lines before ordering adapters
• Verify flex fuel compatibility if the build is running E85 or another ethanol blend
• Confirm whether a kit includes mounting hardware or requires separate brackets
• Plan fuel system upgrades around the target horsepower level of the complete build, not just the current state

Common Questions

What platforms does Radium Engineering support?

Radium Engineering builds fuel system parts for a wide range of platforms including Honda, Mazda RX-7 and RX-8, Mitsubishi Evo, Nissan 240SX and 350Z, Toyota Supra, BMW E36 and E46, Ford Coyote and Mustang, and Corvette C7 and Z06, along with universal fittings and catch cans that fit many builds.

Do I need a surge tank for a street driven car?

Most street driven vehicles do not need a surge tank unless they are regularly tracked or autocrossed, since the factory fuel pickup is generally adequate for normal street driving without sustained high G cornering.

What is the benefit of an adjustable fuel pressure regulator?

An adjustable regulator lets a tuner set base fuel pressure precisely to match injector sizing and desired air fuel ratios, which is especially useful when injectors are upgraded or when running alternative fuels like E85.

Do I need a catch can on a naturally aspirated engine?

Yes, naturally aspirated engines still produce blowby and PCV gasses that can carry oil into the intake tract over time, so a catch can is beneficial even without forced induction, though the benefit is often more pronounced on boosted engines.

Are Radium AN fittings compatible with other brands?

Radium AN fittings follow standard AN sizing so they are generally compatible with fuel lines and components from other manufacturers, provided the AN size and thread type match on both ends of the connection.

What is a fuel hanger assembly?

A fuel hanger assembly integrates a surge tank, pump mount, and fittings into a single unit sized to fit inside the factory fuel tank, simplifying the installation of a surge tank system on supported platforms.

Can I run E85 with Radium fuel system components?

Many Radium fuel system parts are compatible with E85 and other ethanol blends, but confirm the specific part listing for flex fuel compatibility since not every component in the lineup is rated for ethanol exposure.

How do I know which fuel rail fits my engine?

Confirm the exact engine code and injector style before ordering, since Radium fuel rails are engineered around specific injector families and engine platforms rather than sold as a universal fit part.

Why Buy Radium Engineering Parts from Black Ops Auto Works

Black Ops Auto Works stocks 724 Radium Engineering SKUs across import and domestic platforms with real fitment data, competitive pricing, and support from staff who build and tune these vehicles themselves. Products are filterable by year, make, model, trim, and engine to confirm the correct application before ordering.

For focused shopping, browse our fuel delivery, fuel pumps, fittings, and fuel injectors collections.