Ls1 Return Style Fuel Rail

Our built Coyote fuel systems have return line access for easy installation of this sensor. Putting it after the fuel rail means all fuel must run through the fuel rail, and over the injector inlet, at all times. Fuel consumption, a proxy for oil demand, was 18. it has two fuel line going to the motor, one goes to the fuel rail and the - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. ls1 fuel pump 500+bhp. Not a problem, though, as certain year C5 Vettes had a filter/regulator combo with a return line to the tank and a single line to the fuel rail. • All necessary ORB-Port fittings with O-rings, and Billet Aluminum, AN-hose ends. 17 Fuel Rail and Injectors + Welding the Ford 8. Fuel: Fuel rail adapters are required if the car has a return-style fuel system. The early LS1 fuel rails were not really recirculating. We have put this kit together for the do-it-yourselfer that is installing an LS/Gen III engine into his Jeep or Buggy to help simplify plumbing the fuel system. A -6AN hose leads fuel to the inlet of the adjustable regulator. Each set is tested to 120PSI in house with factory injectors on an OEM blower case. Pure Choic Motorsports - The Performance Plumbing Connection. Most stock rails will be plated steel or s. Looking to get great performance. This is the outlet side of the filter for the line to the fuel rail of the engine. This kit is for all returnless fuel rails. The problem is that the car kit that I have is for a ford engine and all the components are for a fuel return system. Return-style systems require fuel pumps to work all the time—it never shuts off as long as the engine's running, which can shorten the life of the pump. The can maintained enough pressure to run the engine until all the cleaner was spent. All the welds and paint, etc are mint. Yes! The XDP 6. Retail Package Price Call (Turnkey Engine Only Package) Need a Transmission too? Click on an Engine & Transmission Package to the right for Details and Pricing. Ryan--yep, I can log fuel rail pressure now. Each set is tested to 120PSI in house with factory injectors on an OEM blower case. If the fuel rail has a return then the return is connected to one of the pressure ports and the second port is capped with -8 AN cap included in the kit for return-style rails (shown on left). Price: $926. I have a 2003 silverado with an ls1/6 setup. Typically, having the regulator so far away from the rails can create unreliable fuel pressures and a dip in pressure right when you mash on it. Complete fuel rail assembly for lsa supercharger. 00 1200+ rwhp capable return fuel system with simple and efficient hose routing. 0L JACKAL Return Style Fuel System E85 friendly **"The First Drop-in fuel system that uses your. 1999 and later Corvette Filter/Regulator; Bypass Style Regulator with 1 inlet, 1 outlet and 1 return. 3 with other things anyone done this before. Grab a big rag and a phillips screwdriver, and while surrounding the testport with the rag (incase of high pressure spray!), press in the schrader valve (like on a tire) to relieve any fuel pressure that may be left. "To convert 99-04 to return style fuel system the tank, pumps and regulator must be changed. The original LSX manifold was designed to work with factory-style fuel rails and had all the plumbing provisions to make it a true "bolt on" swap. They're easy to do since the fuel rails are plastic. To make your LS swap a little less painful, we put together this 2-in-1 fuel filter and fuel pressure regulator fitting kit for you. Secure your new return line onto the barb and clamp it tight. The command varies the duty cycle to the pump to control fuel pump speed, thereby controlling fuel pump pressure. Once the intake is installed, connect the feed line to the end of one fuel rail (I chose the passenger side) and the return line to the return port from your FPR. Sloppy Mechanics Wiki. The fuel pressure regulator is stock for a 2001 5. OEM supply and return adapter fittings. The TBSS returnless fuel rails can be adapted to your OEM return style fuel lines by utilizing a C5 Corvette fuel filter (found her e) between the TBSS fuel rails and your OEM lines. Buy 1 Fuel Injector Oem now! For Mercedes Sprinter 2500 3500 W906 Set of 6 Fuel Injectors OEM BOSCH. Peak Speed Shop : LS Fuel Rails and Fuel Lines - Gift Certificates Intake Manifold Porting Throttle Body Porting FAST Products Intake & Throttle Body Products 719-651-1952 Fuel Injectors, Rails and Lines Cold Air Intakes & Silicone Hose Head/Cam Products and Packages Turbo Packages Superchargers Clearance Items Wiring and Electrical Engine Cooling ecommerce, open source, shop, online shopping. com FREE DELIVERY possible on eligible purchases. Aeromotive 99-03 1/2 LS1 Corvette Return-Style Fuel Rail System. I had a LS1 returess fuel. I know that the LS1 run a dead head system. If you run a return style system with a 1:1 reference, then you flatline the IFR (and also flatline the voltage offset according to MAP, but retain the changes by voltage). Our system comes with a drop in fuel pump and sender for the oem tank that has a 255lph fuel pump. This kit is for all returnless fuel rails. Hose and additional fittings sold separately. Complete fuel rail assembly for lsa. Fuel Rail Kit for Chrysler Gen III HEMI Victor II EFI. I have searched the forums but cannot seem to find something to address my particular issue. 4 uses a returnless fuel rail system while my 4. LS1-Gen3 style cam position sensor on the back of the block. This High Flow, GM Fuel Rail Kit is designed to bolt to all GM, LS6 intakes. Hot Rod fuel hose recommends an AN6 fuel line kit for this style of install. I have a 2000 Jeep Wrangler with a LS1. The fuel supply and return lines are on the left side of Camaro, Caprice, Cadillac and Buick engines. Fuel Rail Kit for Chrysler Gen III HEMI Victor II EFI. Prior to returnless systems, OEMs went to great lengths to keep the fuel in the tank cool. The problem with a return system is fuel is constantly being pumped and returned, which pulls heat out of the pump and hot fuel rails with every cycle. For more aggressive engine applications, it might be a good idea to step up to a complete fuel rail kit which Aeromotive also offers. NEW DEI 010378 JEEP FUEL RAIL INJECTOR COVER KIT 1997-2004 JEEP 4. Regulator or Fuel Pressure Sensor Adapter. The return style fuel system, used in the pushrod 5. The return style fuel rail has a regulator on it that the returnless does not. LSx Swap Guide Alright, I had a handful of do-it-yourself guys wanting more info on how to swap in an LS-series of engine on a limited budget. This is not a straight "copy & paste" operation. The photos below show the lower intake manifold with a 6G75 MIVEC Gasket. Most importantly, due to the fact that LS2 and LS7 engines feature shorter fuel injectors than other LS engines, when performance injectors were required engine builders would have to modify the fuel rail placement to fit the Gen III (LS1/LS6) style injectors. KGParts RX8 Fuel Rails allow you to run a return fuel system and an adjustable Fuel Pressure Regulator!! This is for both Primary and Secondary Rails. Running large fuel rails with stock lines from the pump is useless. I have my feed line split, and individual lines running into the back of each fuel rail. 3 and it makes around 10 hp more, but an actual LS1 will cost upwards of three times more than the 5. My understanding (very limited) of the LS2 is that the fuel rail is blind and that the unused fuel dose not not return to the tank. The problem with a return system is fuel is constantly being pumped and returned, which pulls heat out of the pump and hot fuel rails with every cycle. Truth be told, many carbureted engines run just fine with a deadhead-style fuel system. The rails are in a series installation with. My regulator is mounted towards the front of the fuel rails, and I have lines running from each rail into the two in ports on the regulator. Aside from the relatively small amount of fuel in the fuel lines and the fuel rails, no fuel is stored other than in the fuel tank. The DSE LS1 fuel pumps use a Walbro GSS340 electric in-tank pump that delivers 60-65 PSI @ 55gl/hr (on 13. Each Billet Fuel Rail System is comprised of: • High Flow, CNC-machined, Billet Fuel Rails with custom, steel mounting brackets. In a returnless-style fuel system, the regulator is remote mounted anywhere between the pump and the fuel rail. Fuel Rails w/ mounting brackets. 23 inches (These figures are for a 86-98 return style fuel system). This kit is designed for a return style engine, dual fuel line at the rail. 0L REGULATED RETURN FUEL SYSTEM XD206 will replace the high pressure fuel lines and reconfigure the fuel system in order to eliminate the vehicle’s factory “dead-headed” style fuel system. Then flows the fuel down a supply fuel line to the fuel rail or rails depending on the application. Fits 1999-2003 1/2 GM LS1 Corvette - Return-Style System Each Billet Fuel Rail System is comprised of: High Flow, CNC-machined, Billet Fuel Rails with custom, steel mounting brackets. The 2002-2004 L59 had a return-style fuel injection system and 50 psi of rail pressure. Home Forums > Specific Tech Sections > LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech > what fuel system for t76 turbo ls1 Discussion in ' LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech ' started by KINTARO , Jul 15, 2006. At the end of each rail is a Fuel Pressure Regulator that regulates the fuel pressure. Have been milled. A return fuel system with 1:1 referenced regulator would have increased fuel rail pressure by 50psi to match the boost, keeping effective fuel pressure 40psi higher than intake manifold pressure. 0 an ACT sensor? Ok, yes you would need to convert to a MAF system if you wanted to add a supercharger. The fuel filter is mounted in front of the fuel pump send. Andy cut each knee dent out before welding in filler panels. 00 ] 1200+ rwhp capable return fuel system with simple and efficient hose routing. just T it off just after the fuel filter like they do on an f-body. LS/Gen III Fuel System Plumbing Kit, non-return style - single fuel line at rail Our kit is made up of the highest quality components that are made in the USA. The FR Shields are available in kits to fit single- or dual-rail systems, and they can be. These fuel kits include your choice of Hose color & Length as well as fitting color in AN6 size. My understanding (very limited) of the LS2 is that the fuel rail is blind and that the unused fuel dose not not return to the tank. The feed line run the fuel rails in series and terminates with our stainless/ceramic valve F2i fuel pressure regulator. We need a sticky for this! lol. 1800+ rwhp capable return fuel system with simple and effective hose routing. I have been looking at what Lethal offers and the way they have their kits setup is in a dead head configuration. If you are using the stock feed line or our stock feed line replacement you will need the short line to run this rail. The return line comes off the fuel rail and into the regulator. Demand and return style regulators available. Mallory 29859 Fuel Pressure Regulator Diaphragm Kit For Use With 650-29387 Allstar Bracket Mallory Fuel Pressure Regulator Billet Alum 4-Barrel 4150 Style PRP 1668 Fuel Pressure Regulator Bracket Mallory / Dominator PRP 1368 Fuel Pressure Regulator Bracket Mallory / Dominator Made In The USA. uses 3/4-16 oring fittings. I was extremely impressed with this product and Kurt really out did him self on it. There is no return line and the pump needs a lot of pressure and flow to operate properly, 72. The regulator was on the rail, but did not purge the hot fuel on hot restarts. I have a complete returnless rail if you need it. Any help would be great thanks. And also made returnless fuel rails into a return style by cutting ends off and welding fittings on. If you have a fuel rail without a return and purchased the non-return style rail kit, it will include the second 2-piece hose barb assembly (shown on right. This system utilizes a fuel pump driver module (FPDM) that the PCM sends a command to. LS1tech has been VERY helpfull with getting help for my 5. How To Adapt 96-00 OBS Fuel Lines to 99-03 Return Style LS. So, My question is what is the best set-up for this system. I am putting a LS1 into a HQ and am setting up the fuel system. Conveniently, the C10 also used the same size lines for it's mechanical fuel pump setup, and also had an additional line for an EVAP canister. Fuel Delivery Tech: Carb vs TBI vs MPFI vs DI just on a much smaller scale and much higher fuel rail pressures. Otherwise bone stock. Billet Fuel Pressure Regulator AF66-2055 & AF66-2055BLK Designed for use in a return style fuel system, AF66-2055 series regulators are for hi-pressure (EFI) applications. Most all of the car engines were returnless, but I think there might have been a few exceptions. 0L REGULATED RETURN FUEL SYSTEM XD206 will replace the high pressure fuel lines and reconfigure the fuel system in order to eliminate the vehicle’s factory “dead-headed” style fuel system. Eckler's line of Corvette fuel rail and plenum covers will add that finishing touch to any Corvette. 6 Billet Fuel Rails - * Hi Flow Fuel Rails * Raised fins for cooling * CNC Machined Billet Aluminum * 9/16" ID Diameter * For use with Custom Returnless Style System * Blue Anodized Finish UPR has just released a new line of Super High Performance Fuel Rails to eliminate all those high priced poor quality fuel rails. Fuel Rails. Normally employed by those converting to a high flow, return-style fuel system, these rails may now be used in conjunction with our new High-Flo fuel pressure sensor Y-blocks to create a high flow fuel rail kit for those who wish to. Joe Biden apologizes for praising segregationists and defends his record on race saying he was 'vetted' by Barack Obama. 3 and it makes around 10 hp more, but an actual LS1 will cost upwards of three times more than the 5. Fuel Injection Fittings and Line kits. 7 out of a camaro z28. Pressure in excess of those levels overpowers the needle and seat and floods the float bowl with fuel. This kit works great for a “return style” system for your Holley Hi Ram fuel rails or other similar rails that use the -8ORB (-8 O-ring) fittings. Return style system. So why not get wicked appearance and performance from your MUSTANG GT by adding a set of CPR Mustang Fuel Rails. Running large fuel rails with stock lines from the pump is useless. Looking to get great performance. com? Or LS1tech? Two diffrent sites. 2005 -08 4. Moving forward from your On 3 fuel hat (10an supply line), all black anodized fittings, On 3 in-line fuel filter, Y-Block to feed fuel rails, and 1:1 boost referenced fuel pressure regulator. The original LSX manifold was designed to work with factory-style fuel rails and had all the plumbing provisions to make it a true "bolt on" swap. The volume of fuel that isn’t needed is returned to the tank by the pressure regulator. LSx Swap Guide Alright, I had a handful of do-it-yourself guys wanting more info on how to swap in an LS-series of engine on a limited budget. Intended for use with 11mm OEM style injectors. CNC machined from 6061-T6 billet aluminum for strength. Re: LS1 Return Fuel Rails Apparently they did not come on the Camaros. Find Fuel Rails and get Free Shipping on Orders Over $99 at Summit Racing! Fuel Rail Style (application) GM (39) Ford (32) Chevy, Small Block LS1, LS6, Kit. Fuel flows one-way into the rail and does not return to the tank, so any junk that gets past the fuel filter will end up in the rail or injectors. I have been researching fuel systems recently, I am looking for a fuel system that can support my Whipple 3. Stainless braided fuel lines. ORB fittings, hose ends. How To Adapt 96-00 OBS Fuel Lines to 99-03 Return Style LS. The fuel pressure sensor will be placed in the fuel rail like fac but computer will need to tweeked a bit. Intake Manifolds at Thompson Motosports - Thompson Motorsports is the leader in the LSx market. Since the Stealth system is a return-style fuel system, it features a fuel pressure regulator to regulate fuel pressure, but to also return fuel back to the tank. I'm not sure if the Edelbrock regulator setup is the same, but on my FAST system the fuel supply runs from the pump directly to the fuel rail. Ls1 Fuel System » welcome to our site, this is images about ls1 fuel system posted by Brenda Botha in Ls1 category on Jun 03, 2019. 5psi) fuel pressur. This is not a straight "copy & paste" operation. The return line comes off the fuel rail and into the regulator. Plumbing LS1 fuel rails Need some help plumbing a LS!1with stock fuel rails. A return Type fuel system starts with a fuel pump mounted in or out of the tank. Running large fuel rails with stock lines from the pump is useless. Fits 1999-2003 1/2 GM LS1 Corvette - Return-Style System Each Billet Fuel Rail System is comprised of: High Flow, CNC-machined, Billet Fuel Rails with custom, steel mounting brackets. The returnless style does have a return, it is just not at the fuel rail. I had a LS1 returess fuel. All Fuel Rail Systems include Aeromotive's Ultra-High Flow CNC-machined Billet fuel rails and custom steel mounting brackets, plus everything you need to complete the installation, from AN SS fuel lines to O-ring port fittings and hose-ends. Creative Performance Racing introduces the new Mustang fuel rail for the 2005+ Mustang 3 Valve engines. 1650cc (180 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS1 engines (High-Z) LS1 Fuel Injector Clinic Injector Set: 8 x 1650cc/min (160lbs/hr) at 3 bar (43. The fuel filter will snap directly on to the inlet of the TBSS fuel rails if the inlet is bent upwards carefully. Related: ls1 fuel rail kit ls1 intake manifold ls6 fuel rail ls1 intake ls6 intake manifold ls1 fuel injectors ls1 fuel rails ls1 fuel rail covers ls1 throttle body ls3 fuel rail ls2 fuel rail 5. Return style guarantees a continuous supply of constantly flowing, evenly pressurized fuel. I have searched the forums but cannot seem to find something to address my particular issue. A single -6 AN line is required to act as the cross over line between the front of the two rails. ~$70 part and it should work perfectly. SHOW DETAILS. Technical Support is available to help you determine the best placement for your set up. A return style system that isn't variable will maintain a certain pressure inside the rail, regardless of what is happening in the manifold. Once the intake is installed, connect the feed line to the end of one fuel rail (I chose the passenger side) and the return line to the return port from your FPR. This will allow you to check your fuel pressure with simply opening the hood. Price: $926. Product Overview This is your budget fuel system. I bought it a few years ago so it’s a bit different than the one they currently sell. LS1 intake is installed, don't think I have any pictures that show the layout very well. With the returnless style, the fuel pressure is regulated at the pump in the tank, so when there is high fuel flow, pressure drop through the line will go up, reducing the pressure at the fuel rail, and thus the flow rate through the. The CNC billet adapter will screw directly into the schrader valve on the fuel rails, the other side has a 1/8" NPT port to attach the liquid filled engine turn 0-100psi fuel pressure gauge included. On the inside it is only 0. The return line comes off the fuel rail and into the regulator. How To Adapt 96-00 OBS Fuel Lines to 99-03 Return Style LS. 4L!! Whether your Ford V-8 has a return-style or. From this point back, it matches the S0 system with a 6AN return line leading back to the fuel tank and a return correction kit for the fuel pump housing. 00 1200+ rwhp capable return fuel system with simple and efficient hose routing. There is no return line and the pump needs a lot of pressure and flow to operate properly, 72. The Phantom system does require you to cut a hole in your existing tank in order to mount the internal pump system. Fuel Delivery Tech: Carb vs TBI vs MPFI vs DI just on a much smaller scale and much higher fuel rail pressures. Mallory 29859 Fuel Pressure Regulator Diaphragm Kit For Use With 650-29387 Allstar Bracket Mallory Fuel Pressure Regulator Billet Alum 4-Barrel 4150 Style PRP 1668 Fuel Pressure Regulator Bracket Mallory / Dominator PRP 1368 Fuel Pressure Regulator Bracket Mallory / Dominator Made In The USA. Aeromotive High Flow, Billet Fuel Rails combine 3,000 HP flow capabilities with ‘bolt-on’ ease of installation. The regulator in this kit is not recommended with fuel pumps that flow over 255 lph. Complete LS truck intake. It can be prone to vapor in the rail on hot restart just like the deadheaded rail. Aeromotive’s A1000 injected bypass four-port regulator has provisions for the feed line from the tank, a feed from the regulator to the fuel rails, a port for the return line, and a. The problem is that the car kit that I have is for a ford engine and all the components are for a fuel return system. it has two fuel line going to the motor, one goes to the fuel rail and the - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Fuel Rail Kit for Chrysler Gen III HEMI Victor II EFI. Overview of the LS1 intake swap, corvette fuel pressure regulator/filter, fuel rails, Lokar throttle cable, and injector spacers. They can be used on both returnless and return style fuel systems with our FRPS adapter. the '04 gto is different than the '05 plus as far as design. could possibly tune it out but levels of heatsoak. The proper way to supply fuel to a car making 600 or more horsepower is to use a return-style fuel system. There is a Schrader valve on one end of the fuel rail , I think this is for bleeding out the air. Theres no NEED for flow through rails under 600+ hp and pulling the fuel rail damper out isnt going to help or change anything except for pressure spikes on the rail. They went returnless in 2004 (except the Express, Trailblazer, and Envoy). The return port on the regulator then runs back to the tank. 00 ] 1200+ rwhp capable return fuel system with simple and efficient hose routing. (other brands not tested) May be used with or without engine covers on all variants of LSA and LS9 motors. The rails are joined in the front with a short 6AN crossover hose and fuel leaves the rear of the LH rail leading to the adjustable regulator. Brand: Aeromotive Fuel System Part Type: Fuel Injection Fuel Rail Description: Fits 1999-2003 1/2 GM LS1 Corvette – Return-Style System. The style and value appeal of the V-Class lead the way in the MPV segment. Regulator or Fuel Pressure Sensor Adapter. Holley Sniper 850013 SNIPER EFI FUEL RAIL KIT FOR OE LS3. I had a LS1 returess fuel. 6 uses the return style. Putting it after the fuel rail means all fuel must run through the fuel rail, and over the injector inlet, at all times. Fits 1999-2003 1/2 GM LS1 Corvette - Return-Style System. No filter on the return. Have been milled. // Performance Parts // Fuel // Fuel Rails // AAM Fuel Rail Kit. Save zl1 fuel rail to get e-mail LT1 LT4 LS1 LQ4 LQ9 Fuel Rail Adapter Fittings Feed/Return AN 6 PUSH ON BLACK GM CHEVY BILLET ALUMINUM LS1 LS6 INTAKE FUEL. 4 uses a returnless fuel rail system while my 4. AN LS stock fuel rail setup utilizes 3/8 inch quick connects on the feed and 5/16 quick connects on the return, both available from Hot Rod fuel hose LS swap kits. I had this on my 2014 but will work on 11-17. Direct Drop in replacement Can be configured for Return-less or Return style fuel systems. (These figures are for a 86-98 return style fuel system) Fuel flow to the rails can be significantly improved by replacing the small factory feed line with a AN-8 (1/2") or even AN-6 (3/8") line. I would use a Y at each end of the rail tubes with a vacuum referenced fuel regulator. Aeromotive has what they call the Phantom EFI Fuel System, which includes all the components you need to create a complete return-style EFI fuel system by slightly modifying your existing fuel tank. you will need to upgrade toa return style system, with a fuel pressure regulator up front. the '04 gto is different than the '05 plus as far as design. This pump is a drop in, requiring only transfer of the fuel level sending unit. factory injector limit; Goats not starting :(MPG/FUEL USED gauge with a dual in tank pump setup? Pic Request! FAST + Speed Inc Rails! fuel line bend; High Flow LSx Injectors All Flow Matched. The locking tab was on all 1997 LS1 engines, and in most (but not all) 1998 LS1 engines. W/O Fuel Pump Fuel Rails (an6) -6 or -8 fuel feed and return cut to size AN fittings included Fuel. The FR Shields from Heatshield Products are engineered to Withstand 1,100 degrees F continuous radiant heat and 500 degrees F direct heat. And a high efficiency fuel pump that delivers volume and pressure with a dynamic, return-style regulator, designed for use with carburetors will often solve mysterious fuel problems. • All necessary ORB-Port fittings with O-rings, and Billet Aluminum, AN-hose ends. Ok, Ive got my fittings and lines all ready to go but have a question I cant seem to figure out. 3L truck (return style fuel system) - you will see the injector flow rate is a constant number (typically 3. 5L STi - Return-Style System. Not only can the fuel pumps being used with dead head regulators fail because of pressure issues, but pumps with dead head regulators also run hotter do not last as long as when connected to to a return-style system because it is the fuel that cools the pump. -Mechanical fuel pressure guage mounted inline prior to fuel rail inlet. I'm using a 2000 GT fuel tank so I'm thinking Top hat, fuel Pumps and boost reference regulator. We have put this kit together for the do-it-yourselfer that is installing an LS/Gen III engine into his Jeep or Buggy to help simplify plumbing the fuel system. The feed line run the fuel rails in series and terminates with our stainless/ceramic valve F2i fuel pressure regulator. 5v and 40psi which can support over 600hp at the crank in naturally aspirated engines, and 500hp at the crank in supercharged or turbo applications!. The 98 and up fuel rails have a supply line only. So, My question is what is the best set-up for this system. Truth be told, many carbureted engines run just fine with a deadhead-style fuel system. The -8 fuel line from the Fore hat, feeds the rails first and then goes to the regulator. There is a Schrader valve on one end of the fuel rail , I think this is for bleeding out the air. Run a small section of braided -6 up to the rail, and block off the return portion. Off 2000 ls1 $100 Ls1 camaro take out camshaft 1721 part number. Most Aeromotive EFI regulators have two inlet ports, one on each side, and one bypass port, on the bottom. Normally employed by those converting to a high flow, return-style fuel system, these rails may now be used in conjunction with our new High-Flo fuel pressure sensor Y-blocks to create a high flow fuel rail kit for those who wish to. From the tank, there is a feed line that runs through the fuel filter and up to the fuel rails, which supplies the injectors with fuel. 86-91 RX-7 | FC RX7 LS Swap Kit. Brand: Aeromotive Fuel System Part Type: Fuel Injection Fuel Rail Description: Fits 1999-2003 1/2 GM LS1 Corvette – Return-Style System. The DSE LS1 fuel pumps use a Walbro GSS340 electric in-tank pump that delivers 60-65 PSI @ 55gl/hr (on 13. Ls1 Return Style Fuel Rail.