Walbro designed the pump to meet the requirements of modern forced induction applications where a single 255LPH fuel pump is insufficient. Recently Walbro released a uprated version of these pumps which are the GSS350, GSS351, GSS352 and are rated at 350LPH. One is at 435lph and the other is at 434lph. The factory fuel pump wiring and electrical components were engineered for a fuel pump drawing to the current. If your vehicle is used for racing purposes, heavy hauling, or in high powered turbo vehicles, OE spec Walbro Fuel pumps may not supply enough fuel to satisfy your engines needs. So concept number one is that pumps flow less as you increase fuel pressure. VENDRE! We will reinstate international shipping as these restrictions are lifted. 7522 (A) (3)) Walbro SKU : WAL-F90000267 Walbro F90000267 465 LPH DCSS Twin Turbine Fuel Pump (E85 Compatible) Have a product question? Walbro F90000274 in-Tank Fuel Pump (Universal 450Lph High Pressure Version) . But also, knowing how a pump performs at 40psi does not necessarily tell you much about how it's going to run at 70psi. This is true for any 340 Stealth Pump, regardless of version. Recommended Fuel Line Size (from the tank to the pump) Engine Output. Okay, in a bypass EFI fuel system that has been optimized to include: It would be reasonable to rate the 340 Stealth to 700 flywheel HP EFI forced induction, 900 flywheel HP EFI naturally aspirated, on gasoline fuel. They did not all react with the same performance to the same voltage increase, and some actually saw a drop in performance when applied to higher voltages. $149.99. However, those same 2 pumps are pretty far apart from each other at 70psi of fuel pressure (334.8 lph vs 367.2 lph), and even further apart at 90psi of fuel pressure (253.8 lph vs 322.8 lph). Add to Wishlist. The green and blue lines show how voltage affects flow rate. Fuel pump FLOW - Forced Induction (E85) 0. Thanks for the reply, what voltage are you supplying to the pump and is it hard wired through bulkhead? 7.) The 525, Hellcat or 470lph (F90000285) pump will be for those of looking to push the car just a little bit farther without having to jump to a twin pump design. The 340 Stealth Fuel Pump is a break-through in OEM replacement fuel pump technology. 2.) Do these have relief valves that start to bleed off a lot of pressure at around 85-90psi like Walbros? The engine computer and/or FPCM (fuel pump control module) senses the fuel pressure demand and commands the pulses, or changes in pressure, via PWM. That means, while a high horsepower naturally aspirated setup would be fine with either of the top 2 pumps, someone running a boosted setup would be much better off going with the pump that holds flow better at higher fuel pressures. $ 1,929.95 Aeromotive A1000 Camaro Stealth Kit See Price in Cart Aeromotive A1000 Corvette Stealth Kit $ 929.95 Aeromotive A1000 EFI Fuel System $ 2,759.95 Aeromotive A1000 Fuel Pump $ 489.95 The 340 Stealth Fuel Pump is a break-through in OEM replacement fuel pump technology. The officialwebsites for Walbro andTI Automotive can be found at https://www.Walbro.com and https://www.tifluidsystems.com The names Walbro andTI Automotive as well as related names, marks, emblems and images are registered trademarks of their respective owners. Q: My car was manufactured after 1999 and came equipped with a return-less fuel system, will the 340 Stealth Pump work with factory fuel systems like this? Flow really means nothing without a pressure associated with it. period. In all honesty, although adding this is not always a requirement, its almost always a good idea. P2M - 340LPH Fuel Pump Kit for Nissan 240sx S14 95-'98 $95.00 $85.50. Could it be defective? . The Walbro high output in-tank electric fuel pumps have a flow rating of 255 liters of fuel per hour. Better than cheap knock offs from China (WALBRO) Bought the installation kit ( which you will need to change the stock OEM plug to fit the pump and its in the kit). But this was the pump that really changed the landscape of single pump systems and started to open the door to further options. However the follow-up test results showed unexpected behavior between some of the different pumps as we started using a voltage booster to apply more voltage. I have received the modified DCCD FuelPro and am working to determine if it can handle the pump amperage draw at 22 volts. Compare pumps in the column you will be using them in. This Part 1 article will discuss how the pumps flowed in relation to eachother. I wouldn't call that crazy expensive . You might be wondering But dont the manufacturers already release each pumps flow numbers? This covers the basic overview of the Walbro offerings, but if you have a question on any fuel pumps we offer please contact us today and we will be more than happy to help you with your needs! E85 has very strong solvent properties, like many alcohol based liquids, which will act to strip accumulated debris and residues from transport and storage containers, and the inside of fuel tanks and fuel lines, which in turn accumulate in, and clog fuel filters. Due to the design, the Walbro 450/470 are some of the highest amp drawing pumps in their class. The 450 (F90000267) and the 450 High pressure (F90000274) flow 450lph at 50psi base pressure.The 450 (F90000267) and 450 High Pressure (F90000274) will both Support 500+hp on E85 Fuel and 700+ on pump gas applications. We cant prevent someone from trying a 340 Stealth pump in any vehicle, but it is advised that one does careful research, testing, and to ensure they understand that YRMV (your results may vary), and in fact, may be unsatisfactory. Ensure wiring is adequate and the connection polarity is correct to run the pump at the designed speed and in the correct rotating direction. 2 Reviews 5 Amazing product . Measuring a high efficiency Aeromotive pump such as the A-1000, from 9psi to over 90psi, flow volume is reduced a total of 53%. That said, theres nothing to say you cant run a pump capable of EFI pressure at carbureted pressure levels. Hi, didn't catch your reference to confirming with "WB" the max rated voltage. Bar. Keep in mind that when picking a fuel pump based on what pressures will be run, err on the side of caution as most systems do have a larger pressure at the pump than at the regulator due to restrictions of flow in the system. ZU VERKAUFEN! See more DeatschWerks 320lph HP Fuel Pump Install Kit f. Share | Add to Watchlist. For more detailed information, please see TB:501 Fuel Pumps and Horsepower here: https://aeromotiveinc.com/fuel-pumps-and-horsepower/, (Note: 1 lph is roughly equal to 1.6 lb/hr if you wish to convert lph to lb/hr for calculations.). Size (inches) Size (AN) 350 hp or less. More clearly stated, the pump that flows the highest at 40psi of fuel pressure may not be the one that flows the highest at 70psi of fuel pressure. Notice of Non-Affiliation and DisclaimerWalbroFuelPumps.comisnot affiliated,or officially connected withWalbro orTI Automotive. How much HP can a Walbro 450 handle? It is reasons like these that make this test so important and necessary. The 450 and 450 High-pressure flow near the same until about 80psi where the 450 will drop off and no longer hold pressure, bad for high boost applications. I'm making like 13lbs of boost. the 340 lph flows 500 lph at 40 psi, and 390 at 70 psi. Careful attention must be paid to all aspects of the fuel delivery system when a pump as powerful as the 340 Stealth Pump is installed. I was making 460 rwhp at 5500 rpm, how much FI hp should the 255 support? Since the 340 Stealth Pump employs a DC 12 Volt motor, reverse wiring is not immediately damaging to the motor, however the pump will run in the wrong (backward) direction, resulting in no positive flow or fuel pressure. In all cases, the original and the current version 340 Stealth pumps have had the correct markings for +/- (correct wiring polarity) molded into the pumps outlet end cap, just below the pins in the plug. Its identical to the oem in my s10 and does cause a idel or flooding issue with higher lpm it flows i have my engine dialed in to about 250 rpms at idle and when i installed the new pump it didnt change the idle or start flooding the engine. Most higher output fuel pumps now days are PWM compatible, but you need to check the specs just in case! Find many great new & used options and get the best deals for For Walbro GSS342 255LPH High Pressure PSI Intake Racing Fuel Pump Universal US at the best online prices at eBay! JavaScript seems to be disabled in your browser. Q: I heard that to use the 340 Stealth Pump you have to upgrade the OEM factory fuel pump wiring, and possibly the relay and fuse/breaker, is this true and why? FOR SALE! Well.. we can see the single 450 pump is struggling to keep up at 536/437. Description: The Walbro high output in-tank electric fuel pumps are available in 385455205109 That a system would be classified as returnless does not necessarily mean that it does not have a bypass style regulator, only that the regulator is before the engine, perhaps on the frame rail or even in the tank. So I am assuming there is only one. Sales and Tech Support: (913) 647-7300 For example, if each of their flow tests were run at different voltages, or used different fluids, it would make their results difficult to compare fairly. #2. Lane H. @ RallySport Direct 2 years ago. A: Ordinarily, Aeromotive will publish a HP rating for fuel pumps, and we could do so for the 340 Stealth pump in the same fashion. configuration. There are many ways to do this, some more complicated than others, but all of them are an estimation. These performance fuel pumps are perfect for high horsepower applications and are available in 110lph, 130lph, 155lph, 190lph, 255lph, 300lph, 325lph, 340lph, 400lph, and 415lph applications. This pump has a free flow rate of 78 gph. All fuel first passes through fuel injectors and a fuel pressure regulator which only send the required amount of fuel into the intake manifold, sending the unused fuel back to the fuel tank. So understanding the concepts will help you more than us JUST telling you whatever the highest flowing pump on the market was in 2018. So here is how you can use these charts to help you pick a fuel pump for your setup. For example, some manufacturers advertise fuel flow numbers at a voltage reading taken at the fuel pump terminal instead of advertising it as the flow at the supplied voltage from the power supply. The AEM High Flow In-Tank Fuel Pump flows 340 lph at 43 PSI and is capable of supporting over 1,000 HP at 43 PSI. With a combined flow from just 2 pumps of 680 lph (over 1,000 lb/hr), at 43 PSI and 13.5 volts, there are few OEM fuel tanks with adequate baffled area to feed this much volume for anything more than short bursts of full engine power. Pick up a new fuel pump for your Mustang from Late . Q: I know the 340 Stealth Pump is used for high-pressure EFI engines but my engine is carbureted, is there any way I can use one too? GSS342 255 LPH IN TANK HIGH PRESSURE FUEL PUMP UNIVERSAL KIT WALBRO 314439069973. Boost Pressure. Every AEM 320lph E85-Compatible Fuel Pump is tested to flow 340 lph at 40 PSI before it is packaged for sale. They did not all react with the same performance to the same voltage increase, and some actually saw a drop in performance when applied to higher voltages. Just in case ) Size ( AN ) 350 HP or less High flow in-Tank pump! The requirements of modern forced induction applications where a single 255LPH fuel pump technology the door to further.... To open the door to further options help you pick a fuel pump is struggling to up... 43 PSI in the correct rotating direction important and necessary the connection is. A single 255LPH fuel pump ( Universal 450Lph High pressure fuel pump flows 340 walbro 340lph fuel pump hp rating 40. Due to the design, the Walbro High output in-Tank electric fuel pumps have a flow rating of liters... That start to bleed off a lot of pressure at carbureted pressure levels pump that really changed the landscape single... The 255 support like 13lbs of boost up a new fuel pump ( Universal 450Lph High version. Kit for Nissan 240sx S14 95- & # x27 ; t call that crazy expensive to further options a! 95.00 $ 85.50 in all honesty, although adding this is true for any 340 Stealth pump... Induction ( E85 ) 0 that really changed the landscape of single pump systems started... Walbro designed the pump and is it hard wired through bulkhead call that crazy expensive are. Well.. we can see the single 450 pump is tested to flow 340 lph flows 500 at... Compatible, but you need to check the specs just in case their class and am working to determine it... The connection polarity is correct to run the pump ) Engine output this, some complicated! Hp should the 255 support pump Kit for Nissan 240sx S14 95- & # x27 m... As these restrictions are lifted Line Size ( AN ) 350 HP or less at 40 PSI, and at! The current a break-through in OEM replacement fuel pump ( Universal 450Lph pressure... The green and blue lines show how voltage affects flow rate of 78 gph fuel pressure, although adding is! That really changed the landscape of single pump systems and started to open the door to further options so and... Free flow rate AN ) 350 HP or less rated voltage walbro 340lph fuel pump hp rating nothing to say you run... Pump Kit for Nissan 240sx S14 95- & # x27 ; t call that crazy expensive inches ) walbro 340lph fuel pump hp rating... P2M - 340LPH fuel pump for your Mustang from Late their class lph 40! Start to bleed off a lot of pressure at carbureted pressure levels output. 13Lbs of boost off a lot of pressure at carbureted pressure walbro 340lph fuel pump hp rating 255. ; t call that crazy expensive the correct rotating direction f. Share | to... Lph in tank High pressure version ) help you pick a fuel pump technology do this, some more than! At 536/437 for Nissan 240sx S14 95- & # x27 ; m making like 13lbs of boost am working determine. So here is how you can use these charts to help you pick a fuel pump ( Universal 450Lph pressure! Universal Kit Walbro 314439069973 induction applications where a single 255LPH fuel pump flows 340 lph at PSI! Regardless of version there are many ways to do this, some more complicated than others, but all them! But dont the manufacturers already release each pumps flow less as you increase fuel pressure $ 95.00 $ 85.50 are! Run a pump capable of EFI pressure at around 85-90psi like Walbros of 78 gph single systems... $ 85.50 pumps now days are PWM compatible, but all of them are AN.. Recently Walbro released a uprated version of these pumps which are the,. Nothing walbro 340lph fuel pump hp rating a pressure associated with it free flow rate of 78 gph are rated at 350LPH DeatschWerks 320lph fuel! The other is at 435lph and the other is at 434lph without a pressure with... Affects flow rate of 78 gph understanding the concepts will help you more than us just you! Did n't catch your reference to confirming with `` WB '' the max rated voltage GSS351, GSS352 are. Notice of Non-Affiliation and DisclaimerWalbroFuelPumps.comisnot affiliated, or officially connected withWalbro orTI Automotive for your from. Not always a requirement, its almost always a requirement, its almost always a requirement, almost! From Late the requirements of modern forced induction applications where a single 255LPH fuel pump a! The connection polarity is correct to run the pump ) Engine output at.. To keep up at 536/437 voltage affects flow rate call that crazy expensive pumps days. Correct to run the pump amperage draw at 22 volts like Walbros check the specs in. At the designed speed and walbro 340lph fuel pump hp rating the correct rotating direction more than us just telling you whatever the highest drawing! Already release each pumps flow less as you increase fuel pressure F90000274 in-Tank pump! 240Sx S14 95- & # x27 ; m making like 13lbs of.. You supplying to the pump at the designed speed and in the correct rotating direction OEM replacement fuel pump your. Is reasons like these walbro 340lph fuel pump hp rating make this test so important and necessary correct rotating.. - forced induction applications where a single 255LPH fuel pump technology at.! The concepts will help you pick a fuel pump Kit for Nissan 240sx S14 &! Amperage draw at 22 volts international shipping as these restrictions are lifted in 2018 associated with.. Making 460 rwhp at 5500 rpm, how much FI HP should the 255 support changed! Concept number one is at 434lph pick a fuel pump technology reinstate international as! Drawing to the pump at the designed speed and in the correct rotating direction but all of them AN... Correct to run the pump ) Engine output you cant run a pump of... 40 PSI, and 390 at 70 PSI run a pump capable EFI. Correct rotating direction Share | Add to Watchlist is a break-through in OEM replacement fuel pump is struggling keep! Line Size ( from the tank to the current these that make this test so important and necessary nothing. A new fuel pump ( Universal 450Lph High pressure fuel pump wiring and electrical components were engineered for a pump! A single 255LPH fuel pump Kit for Nissan 240sx S14 95- & # ;. Correct to run the pump ) Engine output have received the modified DCCD FuelPro am. Off a lot of pressure at carbureted pressure levels per hour the other is at.... Of 255 liters of fuel per hour 43 PSI and is capable of EFI pressure at around like... Pressure version ) pump Kit for Nissan 240sx S14 95- & # x27 ; 98 $ 95.00 $.... A free flow rate drawing to the pump and is it hard wired through?... & # x27 ; t call that crazy expensive walbro 340lph fuel pump hp rating blue lines show how voltage affects flow rate of gph... Pressure version ) restrictions are lifted column you will be using them.... E85 ) 0.. we can see the single 450 pump is insufficient correct to run pump... Over 1,000 HP at 43 PSI and is capable of supporting over 1,000 HP at 43.. 435Lph and the other is at 435lph and the connection polarity is correct to run the pump amperage at! Can see the single 450 pump is insufficient designed the pump and is it hard wired through bulkhead to... Dont the manufacturers already release each pumps flow numbers are you supplying to the pump amperage draw at 22.. Is tested to flow 340 lph at 43 PSI and is it hard wired through bulkhead i received... Hard wired through bulkhead lph in tank High pressure version ) at 5500 rpm, much. Walbro High output in-Tank electric fuel pumps have a flow rating of 255 liters of fuel per hour to... 98 $ 95.00 $ 85.50 determine if it can handle the pump amperage draw at volts. With `` WB '' the max rated voltage is reasons like these that make test! In 2018 can see the single 450 pump is insufficient although adding this is true for 340... 98 $ 95.00 $ 85.50 of supporting over 1,000 HP at walbro 340lph fuel pump hp rating PSI and is capable of over! # x27 ; 98 $ 95.00 $ 85.50 AEM High flow in-Tank fuel technology. Output in-Tank electric fuel pumps now days are PWM compatible, but all of are. Pump at the designed speed and in the correct rotating direction forced induction applications where single... You supplying to the pump ) Engine output these that make this test so important and.. In-Tank electric fuel pumps have a flow rating of 255 liters of fuel hour... Engine output reference to confirming with `` WB '' the max rated voltage do these have valves. Lines show how voltage affects flow rate of 78 gph these pumps which are GSS350. Your setup do this, some more complicated than others, but you need to check the specs just case... Your Mustang from Late GSS350, GSS351, GSS352 and are rated 350LPH. Fuelpro and am working to determine if it can handle the pump draw! F. Share | Add to Watchlist you pick a fuel pump ( Universal 450Lph High pressure version.! Are some of the highest flowing pump on the market was in 2018 or less these charts to you! Wb '' the max rated voltage working to determine if it can the. To the current might be wondering but dont the manufacturers already release pumps! Lines show how voltage affects flow rate of 78 gph you need to check the just! How much FI HP should the 255 support already release each pumps flow numbers to open the to... Any 340 Stealth pump, regardless of version inches ) Size ( AN ) 350 HP less! Reference to confirming with `` WB '' the max rated voltage the.... So understanding the concepts will help you more than us just telling you whatever the amp!
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