{"product_id":"radium-fuel-hanger-surge-tank-bmw-e90-e91-e92-e93","title":"Radium - Fuel Hanger Surge Tank, BMW E90\/E91\/E92\/E93","description":"\u003cp\u003eThe Radium Fuel Hanger Surge Tank is a revolutionary way to eliminate fuel starvation that can occur during high performance driving, while also providing a way to upgrade the fuel pumps for high-horsepower engine modifications. This system installs inside the BMW fuel tank on the opposite side of the factory fuel pump and can hold one or two high-flow aftermarket fuel pumps. The OEM fuel pump is used to pump fuel into the FHST, while the pumps inside the FHST supply fuel to the engine. The system is E85 compatible and does not require any permanent modifications for installation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eHOW THE FHST WORKS\u003c\/h3\u003e\n\u003cp\u003eThe OEM saddle bag fuel tank is quite complex. The venturi jet pump is driven by the feed line instead of the return (M3 has 2 venturi jet pumps). The post pump filter and FPR are integrated into the LH side of the tank where the FHST mounts.\u003c\/p\u003e\n\u003cp\u003eWhen these BMWs experience high lateral G-forces, they can suffer from fuel slosh. The FHST is the best solution in preventing fuel starvation. The FHST pump(s) are supplied with fuel from 3 different sources:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe OEM electric \"lift\" pump\u003c\/li\u003e\n\u003cli\u003eThe fuel pressure regulator (FPR)\u003c\/li\u003e\n\u003cli\u003eThe integrated 1-way fill valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/BMW_Tank-OEM_Schematic.png\" style=\"width: 240px;\" id=\"myImg\" class=\"myImages\" alt=\"OEM tank configuration\"\u003e \u003cimg src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/BMW_Tank-FHST_Plumbing_Schematic.png\" style=\"width: 240px;\" id=\"myImg\" class=\"myImages\" alt=\"Radium FHST configuration\"\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eREGULATOR\u003c\/h3\u003e\n\u003cp\u003eRA-series regulators feature the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased. Additionally, there are no inherent air (vacuum\/boost) leaks through the threads that traditionally a smoke detector would pick up. To aid in adjusting pressure, there are incremental detents that provide haptic feedback to the user. Every detent permits 1psi (+\/-0.5psi) of adjustment depending on current fuel pressure. Furthermore, RA-series regulators feature a 360 degree swiveling vacuum reference port that is double O-ring sealed. This is the first in the industry. It permits the installer to quickly point the vacuum fitting in any direction with no tools required.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/Rotating_Assembly-2.jpg\" style=\"width: 240px;\" id=\"myImg\" class=\"myImages\"\u003e \u003cimg src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/pending-patent.png\" style=\"width: 240px;\" id=\"myImg\" class=\"myImages\"\u003e\u003c\/p\u003e\n\u003cp\u003eThere are 4 interchangeable 10-32 threaded vacuum port fittings provided to cover all scenarios.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarbed Fitting:\u003c\/strong\u003e A black zinc-plated 3\/16\" (5mm) barb machined from high strength steel that is compatible with the following vacuum hoses: 5\/32\" (4mm), 3\/16\" (5mm), and 7\/32\" (6mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3AN Male Fitting:\u003c\/strong\u003e A black zinc-plated adapter machined from high strength steel that is compatible with 3AN hose ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush-To-Connect:\u003c\/strong\u003e A nickel-plated brass fitting with Buna-N O-rings that is compatible with hard plastic 1\/4\" OD tubing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum Plug:\u003c\/strong\u003e A black oxide stainless steel screw that is used to maintain a constant (non dynamic) fuel pressure. Beginning in the mid 1990s, vehicle manufacturers started transitioning to returnless fuel systems to lower EVAP emissions. To keep temperatures lower, these regulators are mounted inside the tank and do NOT have the ability to be vacuum referenced. This plug would be required in this scenario.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003ePORT AND FITTINGS\u003c\/h3\u003e\n\u003cp\u003eTo clear the OEM fuel pump cover plate, the 8AN ORB threaded feed port features a preinstalled low profile 8AN male fitting.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eELECTRICAL\u003c\/h3\u003e\n\u003cp\u003eThe custom designed stainless electrical studs easily handle the high current demand that compact bulkhead connectors lack. These serviceable connections are properly sealed and impervious to all standard and exotic fuels. Nonconductive acorn nuts are provided to prevent any accidental short circuiting. Electrical hardware is included for the fuel pump(s) and OEM level sender. The in-tank wiring is insulated with high quality chemically resistant ETFE.\u003cbr\u003e\u003cbr\u003eThese kits include 1 relay, 1 fuse, and all associated wiring and hardware to install 1 surge tank pump. If an extra fuel pump will be installed, purchase a Radium 17-0031 DIY Wiring Kit \u003ca href=\"https:\/\/radiumengineering.myshopify.com\/products\/DIY-Fuel-Pump-Wiring-Kit\"\u003eHERE\u003c\/a\u003e.\u003c\/p\u003e\n\u003chr\u003e\u003cdiv class=\"spec-box3\"\u003e\n\u003ch4\u003e20-1970 FHST-RA BMW E90\/91\/92\/93 Fits Walbro GSS342 or AEM 50-1200\u003c\/h4\u003e\n\u003cdiv style=\"float: left; width: 200px;\"\u003e\u003cimg id=\"myImg\" class=\"myImages\" style=\"width: 200px;\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-1970.jpg\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"poptext\"\u003e\n\u003cp\u003eThis hanger will come partially assembled. It will include enough components to install one or two pumps into the surge tank. Pumps are not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-box3\"\u003e\n\u003ch4\u003e20-1972 FHST-RA BMW E90\/91\/92\/93 Fits Walbro F90000267\/274\/285\u003c\/h4\u003e\n\u003cdiv style=\"float: left; width: 200px;\"\u003e\u003cimg id=\"myImg\" class=\"myImages\" style=\"width: 200px;\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-1972.jpg\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"poptext\"\u003e\n\u003cp\u003eThis hanger will come partially assembled. It will include enough components to install one or two pumps into the surge tank. Pumps are not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-box3\"\u003e\n\u003ch4\u003e20-0475-03 Fuel Hanger Feed BMW E90\/91\/92\/93 Stainless Filter\u003c\/h4\u003e\n\u003cdiv style=\"float: left; width: 200px;\"\u003e\u003cimg id=\"myImg\" class=\"myImages\" style=\"width: 200px;\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-0475-0X.jpg\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"poptext\"\u003e\n\u003cp\u003eNOTE: Because of the exhaust system, these fuel feed kits are NOT compatible with the M3.\u003c\/p\u003e\n\u003cp\u003eAn 8AN PTFE fuel feed line secures to the FHST outlet, as shown below. The fuel line clears the OEM fuel pump cover and all suspension related parts. No cutting or drilling is required. The PTFE hose is routed underneath the vehicle and sent to a Radium Engineering fuel filter secured to the body using OEM hardware. From there, a SAE quick connect fitting is provided to reattach the OEM N54\/N55 fuel line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-box3\"\u003e\n\u003ch4\u003e20-0475-05 Fuel Hanger Feed BMW E90\/91\/92\/93 Microglass Filter\u003c\/h4\u003e\n\u003cdiv style=\"float: left; width: 200px;\"\u003e\u003cimg id=\"myImg\" class=\"myImages\" style=\"width: 200px;\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-0475-0X.jpg\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"poptext\"\u003e\n\u003cp\u003eNOTE: Because of the exhaust system, these fuel feed kits are NOT compatible with the M3.\u003c\/p\u003e\n\u003cp\u003eAn 8AN PTFE fuel feed line secures to the FHST outlet, as shown below. The fuel line clears the OEM fuel pump cover and all suspension related parts. No cutting or drilling is required. The PTFE hose is routed underneath the vehicle and sent to a Radium Engineering fuel filter secured to the body using OEM hardware. From there, a SAE quick connect fitting is provided to reattach the OEM N54\/N55 fuel line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-box3\"\u003e\n\u003ch4\u003e20-0806 Fuel Hanger FPR Block Off\u003c\/h4\u003e\n\u003cdiv style=\"float: left; width: 200px;\"\u003e\u003cimg id=\"myImg\" class=\"myImages\" style=\"width: 200px;\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-0806.jpg\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"poptext\"\u003e\n\u003cp\u003eThe BMW E9X FHST can be converted from a built-in regulator dead-head system to a return style system using this kit. For users wanting to run an engine bay mounted regulator with a return line back to the tank, this kit makes that possible. The parts in the kit disable the built-in regulator allowing the use of an external regulator elsewhere in the system. The hanger top plate features a return port that can be used for the return line from the external regulator.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA 6AN ORB fitting is required for the return port in order to attach a hose. Keep in mind, this fitting must be low profile (20-1000-0606 shown below).\u003c\/li\u003e\n\u003cli\u003eA fuel pressure regulator (not included) must be installed downstream in the system. This procedure is not discussed in the instructions.\u003c\/li\u003e\n\u003cli\u003eEarly models of the FHST without a return port in the top are not compatible with this kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"border-left: 3px solid #e11d48; background: rgba(225, 29, 72, 0.05); padding: 12px 16px; margin: 20px 0; border-radius: 4px; font-size: 0.9em; color: #881337;\"\u003e\n  \u003cstrong\u003eNotice:\u003c\/strong\u003e This product is designed and intended strictly for off-road closed-course motorsport competition and racing vehicles.\n\u003c\/div\u003e","brand":"Radium Engineering","offers":[{"title":"Walbro GSS342 \/ AEM 50-1200 \/ None (FHST Only)","offer_id":67438797324446,"sku":"20-1970","price":870.0,"currency_code":"CAD","in_stock":true},{"title":"Walbro GSS342 \/ AEM 50-1200 \/ With Stainless Filter Feed Kit","offer_id":67438797357214,"sku":"20-1970 + 20-0475-03","price":1435.0,"currency_code":"CAD","in_stock":true},{"title":"Walbro GSS342 \/ AEM 50-1200 \/ With Microglass Filter Feed Kit","offer_id":67438797389982,"sku":"20-1970 + 20-0475-05","price":1406.0,"currency_code":"CAD","in_stock":true},{"title":"Walbro F90000267\/274\/285 \/ None (FHST Only)","offer_id":67438797422750,"sku":"20-1972","price":870.0,"currency_code":"CAD","in_stock":true},{"title":"Walbro F90000267\/274\/285 \/ With Stainless Filter Feed Kit","offer_id":67438797455518,"sku":"20-1972 + 20-0475-03","price":1435.0,"currency_code":"CAD","in_stock":true},{"title":"Walbro F90000267\/274\/285 \/ With Microglass Filter Feed Kit","offer_id":67438797488286,"sku":"20-1972 + 20-0475-05","price":1406.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6460\/0734\/files\/radium-fuel-hanger-surge-tank-bmw-e90-e91-e92-e93-1.jpg?v=1790633343","url":"https:\/\/dm-performance.ca\/products\/radium-fuel-hanger-surge-tank-bmw-e90-e91-e92-e93","provider":"DM Performance","version":"1.0","type":"link"}