{"product_id":"speedfactory-top-mount-turbo-manifold-b-d-h-serie","title":"SpeedFactory Top Mount Turbo Manifold for B\/D\/H-Series","description":"\u003cul\u003e\n\u003cli\u003e1.5\" schedule 40 stainless tubing \u003c\/li\u003e\n\u003cli\u003eTIG welded, back purged \u003c\/li\u003e\n\u003cli\u003eCNC machined 1\/2\" steel flanges \u003c\/li\u003e\n\u003cli\u003eT3, T4 open, T4 divided inlet \u003c\/li\u003e\n\u003cli\u003e38-60mm wastegate, single or twin \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e   \u003cli\u003e\u003ca href=\"#Included\"\u003eIncluded\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eSpeedFactory Top Mount Turbo Manifold for B\/D\/H-Series\u003c\/h3\u003e\n\n\u003cp\u003eYou've picked the turbo, you know what you want the car to run, and now the manifold decides whether it spools when you want it to. SpeedFactory's Top Mount Turbo Manifold puts the turbine up top and short-routes the runners to it, which is why it lights big frame turbos quickly on a B18, B20, D-series, or H22. SpeedFactory positions this one for high power builds and drag cars, and that positioning is worth taking seriously before you order.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\n\u003cp\u003eThe tubing is 1.5 inch schedule 40 stainless, TIG welded and back purged so the inside of the weld doesn't sugar and start shedding into your turbine wheel. The cylinder head flange, wastegate flange, and turbine inlet flange are CNC machined from half inch 1018 steel plate, and every mating surface is machined flat so the gaskets have something square to seal against.\u003c\/p\u003e\n\n\u003cp\u003eHalf inch flange plate matters more than it sounds. Thin head flanges warp as they heat cycle, and once a manifold flange is warped you're chasing exhaust leaks at the head for the rest of the car's life. Thick plate resists that.\u003c\/p\u003e\n\n\u003cp\u003eTop mount geometry is the other half of the story. Short runners feeding a turbine sitting above the head means less volume between the exhaust valve and the turbine wheel, so the turbo sees energy sooner and spools earlier than it would on a long-runner setup. The trade is packaging, because the turbo is now up high in the bay instead of tucked low. Check your clearance before you commit.\u003c\/p\u003e\n\n\u003ch3\u003eTop Mount, Bottom Mount, or Ram Horn\u003c\/h3\u003e\n\n\u003cp\u003eSpeedFactory builds this manifold family in several layouts and they aren't interchangeable in intent.\u003c\/p\u003e\n\n\u003ctable\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eStyle\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eSpeedFactory Positions It For\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eTop Mount (this manifold)\u003c\/td\u003e\n            \u003ctd\u003eTurbine mounted high, short runners\u003c\/td\u003e\n            \u003ctd\u003eHigh power, drag race\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eBottom Mount\u003c\/td\u003e\n            \u003ctd\u003eNear-equal length, turbine low\u003c\/td\u003e\n            \u003ctd\u003eMedium to high power, road race and drag\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eRam Horn\u003c\/td\u003e\n            \u003ctd\u003eEqual length\u003c\/td\u003e\n            \u003ctd\u003eLarger turbos, broad powerband\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eIf your car sees road course time or you want the turbo tucked low, the bottom mount is the one to look at. If you're building a drag car and want the biggest turbo you can light, that's what the top mount is for.\u003c\/p\u003e\n\n\u003ch3\u003eAvailable Configurations\u003c\/h3\u003e\n\n\u003cp\u003ePick your engine family first, then the turbine inlet flange your turbo uses, then the wastegate flange your gate uses.\u003c\/p\u003e\n\n\u003ctable\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eTurbine Inlet\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eWastegate Flange\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eB-Series\u003c\/td\u003e\n            \u003ctd\u003eT3\u003c\/td\u003e\n            \u003ctd\u003e38\/40mm V-Band\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-021-V\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eB-Series\u003c\/td\u003e\n            \u003ctd\u003eT3\u003c\/td\u003e\n            \u003ctd\u003e44\/46mm V-Band\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-022\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eB-Series\u003c\/td\u003e\n            \u003ctd\u003eT4 Open\u003c\/td\u003e\n            \u003ctd\u003eSingle 44\/46mm\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-024\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eB-Series\u003c\/td\u003e\n            \u003ctd\u003eT4 Open\u003c\/td\u003e\n            \u003ctd\u003eSingle 60mm Turbosmart\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-025\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eB-Series\u003c\/td\u003e\n            \u003ctd\u003eT4 Open\u003c\/td\u003e\n            \u003ctd\u003eSingle 60mm TiAL\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-025-TIAL\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eB-Series\u003c\/td\u003e\n            \u003ctd\u003eT4 Divided\u003c\/td\u003e\n            \u003ctd\u003eTwin 44\/46mm\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-026\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eD-Series\u003c\/td\u003e\n            \u003ctd\u003eT3\u003c\/td\u003e\n            \u003ctd\u003e38\/40mm 2-Bolt\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-031\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eD-Series\u003c\/td\u003e\n            \u003ctd\u003eT3\u003c\/td\u003e\n            \u003ctd\u003e44\/46mm V-Band\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-032\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eD-Series\u003c\/td\u003e\n            \u003ctd\u003eT4 Open\u003c\/td\u003e\n            \u003ctd\u003eSingle 44\/46mm\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-034\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eH-Series\u003c\/td\u003e\n            \u003ctd\u003eT3\u003c\/td\u003e\n            \u003ctd\u003e44\/46mm V-Band\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-028\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eH-Series\u003c\/td\u003e\n            \u003ctd\u003eT4 Open\u003c\/td\u003e\n            \u003ctd\u003eSingle 44\/46mm\u003c\/td\u003e\n            \u003ctd\u003eSFR-04-044\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThe 60mm wastegate options and the divided T4 with twin gates are the configurations for the highest power setups, and they lean further toward race use than the single 44\/46mm versions. If you're not sure which turbine flange your turbo has, check the turbo before you order rather than after, because these are built to your selection and can't be swapped later.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\n\u003ctable\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTubing\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e1.5\" schedule 40 stainless steel\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWelding\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTIG welded, back purged\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFlanges\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCNC machined from 1\/2\" 1018 steel plate\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMating Surfaces\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMachined flat\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTurbine Inlet Options\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eT3, T4 open, T4 divided\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWastegate Options\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e38\/40mm, 44\/46mm, 60mm, single or twin\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMade to order\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eWelding defects only, original purchaser (per manufacturer)\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\n\u003ctable\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eEngine Family\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHonda B-Series\u003c\/td\u003e\n            \u003ctd\u003eSix configurations available\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHonda D-Series\u003c\/td\u003e\n            \u003ctd\u003eThree configurations available\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHonda H-Series\u003c\/td\u003e\n            \u003ctd\u003eTwo configurations available\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis fits by engine family rather than by chassis, so a B18 in a DC2, an EG, or an EK all take the same manifold. What varies by chassis is whether the turbo clears once it's up there. Top mount puts the turbine above the head, so measure your hood clearance and your firewall side before you order.\u003c\/p\u003e\n\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\n\u003cp\u003eThese are made to order, not pulled off a shelf. SpeedFactory builds each one to your flange selection and the lead time runs weeks, not days. It has moved around a lot depending on their backlog, and at the moment they're quoting toward the long end of that range. Ask us for the current estimate before you plan a build around a delivery date, because we'd rather tell you eight weeks up front than have you sitting on a car with no manifold.\u003c\/p\u003e\n\n\u003cp\u003eRead the warranty terms before you touch it, because they are narrower than most people expect on a part at this price. SpeedFactory covers welding defects only, to the original purchaser, and they require your invoice plus photos or video of the setup installed. The two things that void it outright: heat wrapping the manifold, and running an improper downpipe or dumptube. Heat wrap is common enough in this community that plenty of people will wrap this without thinking about it and give up their coverage doing it. If you want heat management, use a turbo blanket and shielding instead of wrapping the manifold itself.\u003c\/p\u003e\n\n\u003cp\u003eSupport the weight properly. A big frame turbo hanging off a top mount manifold puts real leverage on the head flange, and manifolds crack where they're stressed, not where they're hot. Get your downpipe supported so it isn't hanging on the turbine housing, and don't let the exhaust pull on the manifold.\u003c\/p\u003e\n\n\u003cp\u003eSpeedFactory sells their performance parts for off road use only, and this manifold is positioned for drag cars. That's not boilerplate on a part like this. If the car is registered and inspected where you live, know what that means before you buy.\u003c\/p\u003e\n\n\u003cp\u003eYou'll need the matching V-band clamps, wastegate, downpipe, and gaskets. None of that is in the box. If you haven't bought the wastegate yet, buy it before you pick the manifold flange so the two actually match.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003ctable\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eEngine Family\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHonda B-Series\u003c\/td\u003e\n            \u003ctd\u003eSix configurations available\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHonda D-Series\u003c\/td\u003e\n            \u003ctd\u003eThree configurations available\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHonda H-Series\u003c\/td\u003e\n            \u003ctd\u003eTwo configurations available\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis fits by engine family rather than by chassis, so a B18 in a DC2, an EG, or an EK all take the same manifold. What varies by chassis is whether the turbo clears once it's up there. Top mount puts the turbine above the head, so measure your hood clearance and your firewall side before you order.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n1.5\" schedule 40 stainless steel\u003cdiv\u003eCylinder head, wastegate, and turbine inlet flanges-1\/2 plate 1018 steel\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\n\n \n\u003cli id=\"Included\"\u003e\n-\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"SpeedFactory","offers":[{"title":"B series \/ T3, 38\/40mm V-Band Wastegate Flange","offer_id":46262320726050,"sku":"SFR-04-021-V","price":1044.37,"currency_code":"USD","in_stock":false},{"title":"B series \/ T3, 44\/46mm V-Band Wastegate Flange","offer_id":46262320758818,"sku":"SFR-04-022","price":1044.37,"currency_code":"USD","in_stock":false},{"title":"B series \/ T4 Open, Single 44mm\/46mm Wastegate Flange","offer_id":46262320791586,"sku":"SFR-04-024","price":1044.37,"currency_code":"USD","in_stock":false},{"title":"B series \/ T4 Open, Single 60mm Turbosmart Wastegate Flange","offer_id":46262320824354,"sku":"SFR-04-025","price":1209.96,"currency_code":"USD","in_stock":false},{"title":"B series \/ T4 Open, Single 60mm Tial Wastegate Flange","offer_id":46262320857122,"sku":"SFR-04-025-TIAL","price":1209.96,"currency_code":"USD","in_stock":false},{"title":"B series \/ T4 Divided, Twin 44mm\/46mm Wastegate Flanges","offer_id":46262320889890,"sku":"SFR-04-026","price":1209.96,"currency_code":"USD","in_stock":false},{"title":"H series \/ T3, 44\/46mm V-Band Wastegate Flange","offer_id":46262320922658,"sku":"SFR-04-028","price":1073.3,"currency_code":"USD","in_stock":false},{"title":"D series \/ T3, 38-40mm 2 Bolt Wastegate Flange","offer_id":46262320955426,"sku":"SFR-04-031","price":1044.37,"currency_code":"USD","in_stock":false},{"title":"D series \/ T3, 44\/46mm V-Band Wastegate Flange","offer_id":46262320988194,"sku":"SFR-04-032","price":1044.37,"currency_code":"USD","in_stock":false},{"title":"D series \/ T4 Open, Single 44mm\/46mm Wastegate Flange","offer_id":46262321020962,"sku":"SFR-04-034","price":1044.37,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/speedfactory-top-mount-turbo-m_mxg3.jpg?v=1785983293","url":"https:\/\/www.hybrid-racing.com\/products\/speedfactory-top-mount-turbo-manifold-b-d-h-serie","provider":"Hybrid Racing","version":"1.0","type":"link"}