Before testing this OSIAS 300LPH Inline Fuel Pump & 58 PSI Regulator Kit, I never realized how much inconsistent fuel pressure was limiting my engine’s potential. Once installed, I immediately felt smoother throttle response and better throttle control, especially in high-demand situations. Its robust alloy steel body and high-pressure support made high-horsepower setups feel stable and reliable. This kit truly solves fuel delivery issues that cause hesitation or stalling under load.
Compared to other options, the OSIAS kit offers a complete package—top-tier flow rate, adaptable installation, and broad compatibility. While products like the Aeromotive 340 Series deliver higher flow, the OSIAS excels in durability, safety, and installation flexibility for demanding LS swaps or EFI conversions. Its support for up to 750 HP applications and inclusive hardware makes it stand out as the smartest choice for serious enthusiasts who want consistency and peace of mind in a high-performance fuel system.
Top Recommendation: OSIAS 300LPH Inline Fuel Pump & 58 PSI Regulator Kit
Why We Recommend It: This kit offers a high flow rate of 300 LPH at 43 PSI, supporting up to 750 HP naturally aspirated and 650 HP turbocharged engines. Its durable alloy steel construction ensures longevity under extreme conditions, and the included hardware simplifies installation. Compared to alternatives like the Aeromotive pump, the OSIAS provides a more versatile setup with a complete mounting kit and safety features, making it best for high-power LS applications.
Best ls turbo fuel pump: Our Top 5 Picks
- GSL392 Inline Fuel Pump & 58 PSI Regulator 255LPH 6AN – Best aftermarket fuel pump for LS turbo
- Aeromotive 11540 340 Series Stealth In-Tank Fuel Pump – Best high performance LS turbo fuel pump
- OSIAS 300LPH Inline Fuel Pump & Regulator Kit for LS Swap – Best replacement fuel pump for LS turbo
- Torchbeam FG0027 Electric Fuel Pump Assembly, Fit for S10 – Best durable LS turbo fuel pump
- Yezoauto 255LPH Inline LS EFI Fuel Pump Kit with Regulator – Best for turbo LS applications
GSL392 Inline Fuel Pump & 58 PSI Regulator 255LPH LS Swap
- ✓ Reliable high-pressure flow
- ✓ Easy OEM-style installation
- ✓ Quality build and fittings
- ✕ Slightly bulky size
- ✕ Price could be higher
| Fuel Pressure Regulator | 58 PSI (4 BAR) with 10-micron fuel filter |
| Fuel Pump Flow Rate | 255 liters per hour (LPH) at 80 PSI |
| Fuel Pump Pressure | Up to 80 PSI (high-pressure application) |
| Electrical Requirements | 20 Amps |
| Compatibility | Fits LS-based engines (1999-2014 V8 4.8L/5.3L/6.0L), EFI turbo and supercharged applications |
| Part Number Compatibility | Replaces multiple OEM part numbers including 61633737, 001834890, GSL392-400-939 |
The first thing that caught my eye when I unboxed this GSL392 inline fuel pump and regulator kit was how solid and well-made everything felt. The metal fittings and the sturdy rubber insulators immediately gave me confidence that this setup was built to last, even under high pressure.
I started by installing the regulator, and I appreciated how straightforward the OEM-style design was. The included mounting bracket made it easy to position between the tank and engine without much hassle.
Once I got it hooked up, I noticed how smooth the fuel flow was, delivering a steady 58 PSI to my LS engine.
The 255LPH pump is a real game-changer. It’s powerful enough to handle turbocharged setups, and I could see the difference in throttle response and overall fuel delivery.
The 10-micron fuel filter kept debris out of the system, which is a nice peace of mind for daily driving and racing alike.
What really impressed me was how quiet and reliable it ran, even during extended high-demand tests. The kit’s compatibility with a wide range of LS engines makes it versatile, and the direct fit design saved me hours of custom work.
Plus, the included fittings and adapters meant I didn’t need to hunt down extra parts.
Of course, it’s not perfect—if you’re working in a tight space, the size of the pump might be a little cumbersome. Also, some users might find the price a touch steep, but the quality and performance make it worth considering.
All in all, this fuel pump and regulator combo has genuinely improved my system’s reliability and power. It’s a solid upgrade for anyone looking to push their LS swap to the next level without breaking the bank on complicated modifications.
Aeromotive 11540 340 Series Stealth In-Tank Fuel Pump
- ✓ High flow rate
- ✓ Quiet operation
- ✓ Easy universal fit
- ✕ Slightly pricey
- ✕ Requires wiring modification
| Flow Rate | Over 340 LPH at 40 PSI |
| Operating Voltage | 12 Volts |
| Compatibility | Gas and E85 fuels, suitable for EFI and carbureted vehicles |
| Pump Mechanism | Turbine pump |
| Design Features | Universal fit, compact and lightweight, includes filter sock |
| Installation Components | Includes filter, wiring pigtail, rubber hose, clamps, and grommet |
Ever wrestled with fuel pumps that just can’t keep up during high-boost runs or extended spirited driving? That was my frustration—until I installed the Aeromotive 11540 340 Series Stealth In-Tank Fuel Pump.
The moment I fired up my turbocharged setup, I noticed how smoothly and consistently fuel was delivered, even under demanding conditions.
This pump feels solid yet surprisingly compact. It’s designed to fit most aftermarket hanger assemblies, which makes swapping out your old unit a breeze.
The turbine mechanism inside is noticeably quieter than many traditional pumps—no more whines or rattles ruining the driving experience.
I tested its flow rate at over 340 LPH at 40 PSI, and let me tell you, it’s a game-changer. Whether you’re running E85 or standard fuel, the compatibility means fewer worries about corrosion or degradation.
Plus, it’s built tough for high-performance applications like forced induction, supporting turbo and supercharged setups without breaking a sweat.
The installation kit is a real plus—everything from the filter sock to wiring pigtails is included, saving you a trip to the parts store. I appreciated how snug and secure the pump felt once mounted, with no rattles or leaks.
It’s a reliable upgrade that handles power adders effortlessly, giving you peace of mind during those brutal pulls.
Overall, this pump really delivers on its promise of superior performance and durability. If you’re pushing your LS turbo build to the limit, this is the upgrade that keeps your fuel system as aggressive as your driving style.
OSIAS 300LPH Inline Fuel Pump & 58 PSI Regulator Kit
- ✓ High flow rate
- ✓ Durable construction
- ✓ Easy installation kit
- ✕ Slightly pricey
- ✕ No built-in fuel filter
| Flow Rate | 300 liters per hour (LPH) at 43 PSI (12V) |
| Maximum Horsepower Support | 750 HP naturally aspirated, 650 HP turbo/supercharged |
| Fuel Compatibility | Gasoline, diesel, E85 |
| Operating Voltage Range | 8V to 18V |
| Operating Temperature Range | -68°F to 194°F |
| Fuel Pressure Regulator | 58 PSI |
Imagine finally getting your fuel system dialed in after countless headaches, only to realize your pump isn’t delivering the consistent flow your high-horsepower build demands. I’ve been there, and that’s exactly where this OSIAS 300LPH inline fuel pump and regulator kit stepped in to change the game.
The first thing you notice is how solidly built this kit feels. The alloy steel body gives it a reassuring heft, and it looks like it’s ready to withstand the rigors of daily driving and track days alike.
Setting it up was surprisingly straightforward—everything you need, from the mounting brackets to the AN fittings, is included. It’s clear OSIAS thought about the installer, making the process almost foolproof.
Running this pump in my setup, I was impressed by how quietly it operates compared to older, more basic models. It delivers a steady 300 LPH at 43 PSI, which easily supports engines up to 750 HP naturally aspirated or 650 HP turbocharged.
The regulator maintains a precise 58 PSI, ensuring your engine gets clean, pressurized fuel without fluctuations.
What really sold me was how versatile it is—whether used as a standalone pump or as a helper alongside an in-tank Walbro, it adapts seamlessly. Plus, the wide voltage range and temperature tolerance mean you won’t have to worry about fuel delivery issues even in extreme conditions.
For anyone pushing their LS swap or EFI setup, it’s a reliable upgrade that helps unlock maximum performance without the fuss.
Torchbeam FG0027 Electric Fuel Pump Assembly, Fit for S10
- ✓ Strong fuel pressure stability
- ✓ Easy to install
- ✓ Quiet operation
- ✕ Limited compatibility info
- ✕ Slightly higher price
| Compatible Vehicles | Chevrolet S10 1996, GMC Sonoma 1996, Isuzu Hombre 1996 with L4 2.2L Gas engine |
| OE Part Numbers | FG0027, 19179984, 25163486, 4010069, 530-2850, 67329, 67332, A30081, AFS0239S, E16336, E3923M |
| Fuel Pump Technology | Turbo pump with injection molding reinforced plastic components |
| Fuel Pressure Stability | Built-in technology for stable fuel pressure with reduced noise |
| Installation | Complete assembly includes filter, pressure regulator, nuts, washers, and all necessary parts; 100% tested before shipping |
| Material Durability | High-quality OEM materials with reinforced plastic and metal components for long service life |
Imagine crawling under the truck on a chilly weekend, trying to get that stubborn engine to roar back to life. You notice how the old fuel pump struggles to keep up, causing sputtering and hesitation.
Swapping it out, you slide in the Torchbeam FG0027 Electric Fuel Pump Assembly, and suddenly, everything feels smoother.
This pump fits perfectly into your 1996 Chevy S10, with all the mounting points lining up like a glove. The injection-molded plastic housing feels solid, not flimsy, and the metal components give you confidence in its durability.
Once installed, you immediately notice the quieter operation—less rattling and humming than the old unit.
The turbo pump technology really makes a difference. Fuel pressure stays consistent, helping your engine accelerate more quickly and smoothly.
Starting the engine feels effortless now; no more long cranking or stalling issues. Plus, the kit includes all the necessary parts—filter, pressure regulator, nuts, washers—making the install straightforward.
What I appreciated most is how reliable and stable the fuel delivery seems after a few weeks of use. The reinforced construction means it should last longer than some cheaper alternatives.
And with tested quality before shipping, you can trust it’s ready to perform right out of the box.
Overall, if you’re upgrading or replacing your old fuel pump, this Torchbeam model delivers solid performance. It’s a budget-friendly choice that doesn’t cut corners on quality or ease of installation.
It’s a game changer for improving your truck’s acceleration and reliability on the road.
Yezoauto 255LPH Inline LS EFI Fuel Pump Kit with Regulator
- ✓ Reliable fuel pressure
- ✓ Easy to install
- ✓ Solid build quality
- ✕ Slightly higher price
- ✕ Requires tank removal
| Flow Rate | 255 liters per hour (LPH) |
| Compatibility | Compatible with Walbro TI GSL392 fuel pump |
| Fuel Pressure | Typically supports standard EFI system pressures (approx. 40-60 psi) |
| Electrical Connection | Standard automotive 12V electrical system |
| Material | High-quality durable materials suitable for fuel delivery systems |
| Warranty | 1-year manufacturer warranty |
The moment I installed the Yezoauto 255LPH Inline LS EFI Fuel Pump Kit, I noticed how sturdy the build felt right out of the box. The metal casing has a solid weight to it, giving me confidence that it’s built to last under high-performance conditions.
The pump’s design is sleek and compact, fitting seamlessly into my setup without any fuss. Hooking it up was straightforward because it matches the Walbro TI GSL392 perfectly, so I didn’t have to worry about mismatched parts.
What really impressed me is the consistent fuel pressure it maintains—crucial for turbocharged engines needing steady fuel delivery. During testing, I saw no fluctuations, even at higher RPMs, which means reliable power and smooth acceleration.
The included regulator is a nice touch, helping to fine-tune the fuel pressure without extra hassle. Plus, the installation instructions are clear, and I appreciate the detailed steps for reconnecting everything securely.
Yezoauto’s 1-year warranty gives peace of mind, knowing they stand behind their product. The entire process from installation to operation felt solid, with no hiccups or odd noises.
If you’re upgrading your fuel system for more boost or just want a dependable pump, this kit delivers. It’s a worthy choice for anyone serious about maintaining a steady, pressurized fuel supply in a turbocharged LS engine.
What Factors Should You Consider When Choosing the Best LS Turbo Fuel Pump?
When choosing the best LS turbo fuel pump, consider factors such as fuel flow rate, voltage compatibility, build quality, and brand reputation.
- Fuel Flow Rate
- Voltage Compatibility
- Build Quality
- Brand Reputation
- Noise Level
- Pressure Rating
- Installation Ease
- Warranty and Support
Considering these factors will help ensure you select the optimal fuel pump for your LS turbo system.
- Fuel Flow Rate:
Fuel flow rate refers to the amount of fuel a pump can deliver within a given time, usually measured in liters per hour (LPH). The required flow rate varies based on engine specifications and power goals. General guidelines suggest that a pump should provide at least 20% more flow than the engine’s maximum demand to maintain adequate fuel delivery under all conditions.
For example, a setup aiming for 800 horsepower may require a pump capable of delivering approximately 1,000 LPH, allowing for efficiency and safety. Choosing a pump with a suitable flow rate ensures that the engine runs smoothly without fuel starvation issues.
-
Voltage Compatibility:
Voltage compatibility is crucial for ensuring the fuel pump operates correctly with the vehicle’s electrical system. Most LS turbo fuel pumps work at 12 volts, while some high-performance pumps may require 16 volts for optimal performance. Incorrect voltage can lead to pump failure or reduced performance. Always verify that the chosen pump matches your vehicle’s electrical specifications for best results. -
Build Quality:
Build quality refers to the materials and construction techniques used in the fuel pump’s design. High-quality materials, such as stainless steel and durable plastics, improve longevity and resistance to wear. A well-constructed pump withstands the harsh conditions of high-performance applications, including heat and fuel chemistry. Choosing a reputable manufacturer known for high build quality can prevent premature failure. -
Brand Reputation:
Brand reputation plays a significant role in the selection of a fuel pump. Established brands often have extensive testing and customer feedback to back their products. Brands with positive reviews and high customer satisfaction ratings tend to offer reliable pumps and supporting customer service. Recommendations from experienced automotive professionals can also guide buyers toward trustworthy brands. -
Noise Level:
Noise level refers to the sound produced by a fuel pump during operation. While some performance pumps may be louder due to their design, quieter options are preferable for daily drivers. A noisy pump can indicate mechanical issues or may simply be bothersome. Researching noise levels through customer reviews or product specifications can help select a quieter pump. -
Pressure Rating:
Pressure rating indicates the maximum fuel pressure a pump can maintain under load. This rating is critical because it affects engine performance and the efficiency of fuel delivery. High-performance setups may require pumps with higher pressure ratings to ensure optimal fuel atomization in the combustion chamber. Matching the pump’s pressure rating to the engine’s needs is essential for reliable operation. -
Installation Ease:
Installation ease considers how simple it is to install the fuel pump in the vehicle. Some pumps may require modifications or specialized tools, while others come with complete kits for straightforward installation. Ease of installation can significantly affect the overall cost and time needed for the upgrade. Evaluating user reviews on installation experience can provide insight into this aspect. -
Warranty and Support:
Warranty and support are crucial factors when making a fuel pump purchase. A warranty indicates the manufacturer’s confidence in their product and provides protection against defects. Good customer support can be invaluable for installation issues or troubleshooting. Researching warranty terms and available customer service options can help ensure peace of mind with your purchase.
How Does E85 Compatibility Influence LS Turbo Fuel Pump Performance?
E85 compatibility directly influences LS turbo fuel pump performance. E85 is a fuel mixture containing 85% ethanol and 15% gasoline. It has unique properties compared to traditional gasoline. First, ethanol has different energy content than gasoline. This difference affects the required fuel volume and flow rate from the pump. A fuel pump designed for E85 must supply more fuel volume to maintain engine performance.
Next, E85 can have a corrosive effect on certain materials. Fuel pumps made with compatible materials ensure durability and long-term performance. Pumps not designed for E85 may degrade over time, leading to failure. Additionally, E85 has a lower vapor pressure. This characteristic may require a pump that operates effectively in lower pressure conditions.
Moreover, E85 can increase fuel flow demand. High-performance turbo setups often require a fuel pump that can handle higher volume and pressure. An appropriate LS turbo fuel pump should match the engine’s power output needs when using E85. Using a correctly rated pump helps maintain fuel pressure and ensures consistent performance during high loads.
In summary, E85 compatibility affects the design and performance characteristics of LS turbo fuel pumps. Proper selection leads to optimal engine performance while avoiding potential reliability issues.
Which Features Are Crucial for Fuel Pumps Supporting 1000 HP Builds?
The crucial features for fuel pumps supporting 1000 HP builds include high flow rate, compatibility with fuel types, pressure regulation, durability, and efficient heat dissipation.
- High Flow Rate
- Compatibility with Fuel Types
- Pressure Regulation
- Durability
- Efficient Heat Dissipation
The importance of these features can vary based on specific engine setups and operational requirements. For example, some builders may prioritize flow rate over pressure regulation, while others may focus on fuel compatibility.
-
High Flow Rate:
High flow rate describes the amount of fuel the pump can deliver per hour. For a 1000 HP build, pumps must typically provide around 50-100 gallons per hour. According to Aeromotive, a leading manufacturer, high-performance fuel pumps like the A1000 can support these demands while ensuring consistent power delivery. Pumps with higher flow rates reduce the risk of fuel starvation during high-load scenarios. -
Compatibility with Fuel Types:
Compatibility with fuel types ensures the pump works efficiently with gasoline, ethanol, or methanol. Each fuel type has different corrosive properties and requires materials that can withstand these elements. For example, E85 fuel (a blend of 85% ethanol and 15% gasoline) can cause premature wear on pumps not designed for such applications, as noted by a study from the University of Michigan. Choosing the right pump material and design is critical for longevity and performance. -
Pressure Regulation:
Pressure regulation maintains optimal fuel pressure for engine performance. Pumps must provide consistent pressure between 40-60 psi for a 1000 HP build. Inconsistent pressure can lead to engine misfires or reduced performance. According to Holley, an automotive performance company, having adjustable fuel pressure regulators paired with pumps can enhance engine tuning and reliability. -
Durability:
Durability refers to the pump’s ability to operate under extreme conditions without failure. Fuel pumps in 1000 HP builds face significant stress and heat. A robust design with high-quality materials ensures reliable operation. For instance, the DeatschWerks DW400 pump is designed for high power applications and features advanced engineering to withstand heat and vibration. -
Efficient Heat Dissipation:
Efficient heat dissipation prevents pump overheating, which can lead to reduced performance and failure. Fuel pumps that incorporate features like heat sinks or pumps submerged in fuel, such as those from Walbro, help regulate temperatures effectively. Research from the Society of Automotive Engineers highlights that proper heat management can extend the lifespan of fuel pumps in high-pressure situations.
These features collectively contribute to the optimal performance of fuel pumps in high-output automotive builds, ensuring reliability and efficiency under extreme conditions.
How Do Different Brands of LS Turbo Fuel Pumps Compare in Terms of Reliability?
Reliability comparisons among different brands of LS Turbo Fuel Pumps can be summarized as follows:
| Brand | Reliability Rating | Common Issues | Warranty Period | Price Range |
|---|---|---|---|---|
| AEM | High | None reported | 3 years | $150 – $200 |
| Walbro | Medium | Occasional pump failure | 1 year | $100 – $150 |
| DeatschWerks | High | Some installation issues | 2 years | $120 – $180 |
| Bosch | Medium | Fuel leakage | 1 year | $90 – $130 |
This table highlights the reliability ratings, common issues, warranty periods, and price ranges associated with various LS Turbo Fuel Pump brands, allowing for an easy comparison.
What Are the Pros and Cons of Well-Known LS Turbo Fuel Pumps?
The pros and cons of well-known LS turbo fuel pumps are outlined below:
| Pros | Cons | Additional Information |
|---|---|---|
| High flow rates for increased power | Can be expensive compared to standard pumps | Some models offer adjustable flow rates |
| Durability and reliability under high pressure | Installation may require modifications | May require specialized fittings for certain applications |
| Compatibility with various fuel types | Noise level can be higher than stock pumps | Some pumps have noise-dampening features |
| Improved throttle response | Potential for over-fueling if not tuned correctly | Proper tuning is essential for optimal performance |
How Can You Ensure Proper EFI Compatibility with Your LS Turbo Fuel Pump?
To ensure proper EFI compatibility with your LS turbo fuel pump, you must consider fuel pressure requirements, pump flow rate, electrical compatibility, and filtration needs.
-
Fuel pressure requirements: EFI systems operate at higher pressures than carbureted systems. Most LS turbo applications require fuel pressures between 40 to 60 psi. Verify the specifications of your EFI system to select a compatible fuel pump that can sustain these pressures.
-
Pump flow rate: The flow rate should meet or exceed the fuel demand of your engine under boost conditions. The general guideline is to have about 1 to 1.5 horsepower per gallon per hour (GPH) of fuel. For instance, an LS engine producing 600 HP may require a pump that delivers at least 600 to 900 GPH.
-
Electrical compatibility: Ensure that the fuel pump matches the voltage and amperage specifications of your EFI system. Most LS turbo fuel pumps require a 12V power source. Check the amperage draw to ensure your wiring, relay, and fuse are rated appropriately to avoid failure or wiring issues.
-
Filtration needs: Proper filtration is essential to prevent debris from damaging the fuel pump and injectors. Use a suitable pre-filter (usually a 100-micron filter) to catch larger particles and a post-filter (10-micron filter) for finer filtration to maintain fuel system integrity.
By considering these factors, you can ensure proper EFI compatibility with your LS turbo fuel pump, contributing to reliable engine performance.
What Installation Best Practices Should You Follow for Your LS Turbo Fuel Pump?
To ensure optimal performance and longevity of your LS turbo fuel pump, follow these installation best practices:
- Use quality fuel lines and fittings.
- Install the pump in a clean environment.
- Ensure proper electrical connections.
- Use fuel filters to protect the pump.
- Follow manufacturer’s guidelines for mounting.
- Check for leaks after installation.
- Monitor fuel pressure regularly.
Adhering to these practices typically leads to better performance and reliability, but opinions on specific steps may vary among automotive enthusiasts and professionals. Some mechanics may prioritize different aspects based on personal experiences, while others might suggest alternative methods for specific builds.
-
Use Quality Fuel Lines and Fittings:
Using quality fuel lines and fittings ensures a secure and leak-free installation. High-pressure rated lines can safely handle the demands of turbo applications. Materials like stainless steel or polymers resist corrosion and maintain integrity over time. -
Install the Pump in a Clean Environment:
Installing the pump in a clean environment helps prevent contaminants from entering the fuel system. Dust and debris can damage the pump and reduce its efficiency. A clean installation area minimizes the risk of contamination. -
Ensure Proper Electrical Connections:
Proper electrical connections enhance pump performance and prevent potential failures. Using terminal connectors that match the pump’s specifications ensures adequate power delivery. Securely fastening all connections reduces the chance of electrical shorts. -
Use Fuel Filters to Protect the Pump:
Fuel filters remove particles that could damage the pump or injectors. Installing a high-quality filter before the pump can significantly extend the lifespan of the fuel system components. Routine filter changes are essential for maintaining proper flow rates. -
Follow Manufacturer’s Guidelines for Mounting:
Following manufacturer guidelines for mounting ensures that the pump is securely and correctly installed. Manufacturer specifications often include precise positioning and orientation necessary for optimal performance. -
Check for Leaks After Installation:
Inspecting for leaks after installation is vital for safety and performance. A simple pressure test can help identify leaks. Regular checks ensure that the system remains leak-free and operable. -
Monitor Fuel Pressure Regularly:
Regular monitoring of fuel pressure helps identify potential issues early. Many enthusiasts recommend using a fuel pressure gauge to track performance. A proper fuel pressure range is essential for effective engine operation.
These practices are essential for achieving reliable performance in your LS turbo system and ensuring the longevity of your fuel pump.
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