DeatschWerks 340lph DW300C Compact Fuel Pump with Set Up Kit 2009-2021 2023-2024 Nissan GT-R

Reliable Fuel Delivery for High-Horsepower Nissan GT-R

You’ve tuned your Nissan GT-R, maybe added larger turbos, or pushed the boost. Now you’re hitting a wall: fuel starvation. The factory fuel pumps just can't keep up with the demands of a built engine. When your engine isn't getting enough fuel, you lose power, risk dangerous lean conditions, and can severely damage components. That's a problem you can't ignore.

At CI Motorsports, we see it all the time. Customers come in with hesitation, misfires under load, or dyno sheets showing power drops at high RPM. The solution often points to the fuel system. The DeatschWerks 340lph DW300C Compact Fuel Pump with Set Up Kit is designed to fix this. It’s a direct replacement upgrade for your 2009-2021 and 2023-2024 Nissan GT-R, engineered to deliver the consistent fuel flow your high-horsepower R35 needs.

DeatschWerks 340lph DW300C Fuel Pump: Built for Boost

The DW300C is a compact, high-flow fuel pump from DeatschWerks, a brand known for serious fuel system solutions. This isn’t just a universal pump; the included setup kit (remember, your GT-R needs two of these units) ensures it integrates properly into your factory fuel module. DeatschWerks has been building high-performance fuel components since 2004, and their experience shows in the reliability and consistent flow of the DW300C.

This pump flows 340 liters per hour (lph) at 40 PSI. That's a significant upgrade over stock. For a modified GT-R pushing serious horsepower, having pumps that can keep up means stable fuel pressure, proper air/fuel ratios, and more power, safely. It's about confidence when you put your foot down.

Key Features and Specifications

When we look at a fuel pump for a high-performance application like the GT-R, we focus on reliability and flow capacity. The DW300C delivers on both fronts:

• High Flow Rate: Each pump flows 340 lph (liters per hour) at 40 PSI. This is crucial for supporting increased horsepower demands from engine modifications, larger turbos, or forced induction upgrades. With two pumps, your GT-R’s fuel system gains significant capacity.
• Compact Design: The "C" in DW300C stands for Compact. This smaller form factor allows for better fitment in tight factory fuel pump modules, reducing installation headaches compared to bulkier aftermarket options.
• Direct Fitment: The included vehicle-specific setup kit makes installation straightforward. This isn't a universal pump you need to modify heavily; it’s designed to drop right into your GT-R's fuel system with minimal hassle.
• Premium Materials and Construction: DeatschWerks uses high-quality internal components and manufacturing processes. This translates to a durable pump that can withstand the demanding conditions of high-performance driving and various fuel types.
• Manufacturer Warranty: Backed by DeatschWerks, giving you peace of mind in the product's quality and longevity.

Installation Notes for the DeatschWerks DW300C Fuel Pump

Installing fuel pumps is not a beginner-level job. It requires attention to detail, proper tools, and a good understanding of fuel system mechanics. We recommend professional installation for the DW300C, especially in a complex system like the GT-R's.

• Difficulty: Advanced. Working with fuel systems carries inherent risks, and improper installation can lead to leaks, fire hazards, or engine damage.
• Estimated Time: Plan for 4-8 hours. This includes accessing the fuel tank, safely draining fuel, disconnecting lines, replacing both pumps, reassembling, and thoroughly checking for leaks and proper operation. Rushing this job can lead to serious issues.
• Required Tools:
• Standard metric socket and wrench set
• Screwdrivers (Phillips and flathead)
• Fuel line disconnect tools
• Hose clamps and possibly a hose clamp removal tool
• Pick set (for O-rings and clips)
• Multimeter for checking electrical connections
• Wire strippers, crimpers, and heat gun (if wiring adapters are required or supplied)
• Fuel pressure gauge (essential for post-installation verification)
• Safety equipment: fire extinguisher, eye protection, gloves.
• Fuel drain pan and proper fuel storage containers.
• Process Overview:
• Safety First: Disconnect the battery. Relieve fuel system pressure. Ensure adequate ventilation. Have a fire extinguisher readily available.
• Access: The GT-R fuel tank is typically accessed by removing the rear seats and carpet panels. Be careful not to damage trim.
• Drain Fuel: It’s safer and easier to work on a nearly empty tank. If the tank is full, you'll need to siphon or pump out most of the fuel into approved containers.
• Disconnect: Carefully disconnect fuel lines and electrical connectors from the fuel pump assembly. Be aware of residual fuel.
• Remove Old Pumps: Unbolt and remove the factory fuel pump modules. Extract the old pumps from their hangers.
• Install DW300C: Install the new DeatschWerks DW300C pumps into the factory hangers using the provided setup kit components. Ensure all new O-rings and seals are properly seated. The GT-R uses a dual pump system, so you will be repeating this process for both pumps.
• Reassembly: Carefully re-install the fuel pump modules, reconnect all fuel lines and electrical connectors. Double-check every connection.
• Leak Check: Before full reassembly, prime the fuel system (cycle the ignition a few times without starting) and thoroughly check for any leaks around the fuel pump hat and lines.
• Verification: Start the engine and immediately check fuel pressure with a gauge. Monitor for any unusual noises or leaks.
• Common Mistakes to Avoid:
• Not Relieving Fuel Pressure: Always do this before disconnecting lines to prevent spraying fuel and potential injury.
• Pinching O-rings or Fuel Lines: These can cause leaks. Use a small amount of clean fuel or appropriate lubricant on O-rings during installation.
• Incorrect Wiring: Double-check polarity and ensure secure, waterproof electrical connections. Poor crimps lead to voltage drop and pump failure.
• Cross-Threading Fittings: Fuel line fittings are precise. Take your time to ensure they thread on smoothly.
• Not Using New Seals/Gaskets: The setup kit should include necessary seals. Always replace them to ensure a leak-free seal.
• Forgetting to Prime: Do not crank the engine immediately. Cycle the ignition a few times to allow the pumps to prime the system and build pressure.
• Insufficient Testing: A quick start isn't enough. Monitor fuel pressure under various conditions if possible, and listen for any abnormal pump noises.

Fitment: DeatschWerks DW300C Nissan GT-R Fuel Pump

This DeatschWerks DW300C Compact Fuel Pump with Setup Kit (Part Number 9-309-1009) is a direct fitment upgrade for the following Nissan GT-R models:

• 2009-2021 Nissan GT-R
• 2023-2024 Nissan GT-R

What to Confirm Before Ordering: While the GT-R platform is generally consistent, it's always good practice to double-check your vehicle's specific year and any previous modifications that might affect fuel system compatibility. If you have custom fuel rails, lines, or a surge tank, confirm compatibility with those components.

Maintenance and Care

Once installed, the DW300C fuel pumps are designed for long-term, reliable service with minimal maintenance. However, a few best practices will ensure their longevity and performance:

• Use Clean Fuel: Contaminants are the enemy of any fuel pump. Always fill up at reputable stations and consider a quality inline fuel filter if you frequently run E85 or push your system hard.
• Avoid Running on Empty: Constantly running your fuel tank below a quarter full can overheat the pumps, as fuel helps cool them. Try to keep a reasonable amount of fuel in the tank, especially with high-performance pumps.
• Monitor Fuel Pressure: If you have a fuel pressure gauge, periodically monitor it, especially under load. Any drops in pressure could indicate an issue with the pumps or other fuel system components.
• Regular System Checks: During routine maintenance, visually inspect fuel lines and connections for any signs of leaks or wear.

Customer Considerations: Is This for Your GT-R?

This DeatschWerks DW300C fuel pump upgrade is specific to a certain type of GT-R owner and build.

This Product is For You If:

• You Have a Modified GT-R: If your GT-R has increased horsepower from tuning, turbo upgrades, E85 conversions, or other performance modifications, your stock pumps are likely a bottleneck.
• You're Planning Power Upgrades: Even if your GT-R is currently stock, but you have future plans for significant power gains, installing these now will provide the necessary fuel headroom.
• You Experience Fuel Starvation: Symptoms like power loss, hesitation, or misfires at high RPM or boost often point to insufficient fuel delivery.
• You Demand Reliability: For track days, drag racing, or aggressive street driving, you need a fuel system that won't let you down.

You Might Not Need This Product If:

• Your GT-R is Completely Stock: For a truly un-modified GT-R with no plans for power increases, the factory fuel pumps are adequate.
• You Prefer OEM Only: While a high-quality aftermarket part, some owners prefer to keep everything strictly OEM. However, OEM won't support high horsepower.
• You're Not Comfortable with Advanced DIY: As noted, fuel pump installation is complex. If you're not planning professional installation or confident in your own advanced mechanical skills, this might not be the upgrade to tackle yourself.

Why We Recommend This at the Shop

At CI Motorsports, we’ve installed countless performance parts, and we’ve learned what works and what doesn't. When it comes to fueling high-horsepower GT-R builds, the DeatschWerks DW300C is a go-to recommendation. Here’s why:

• Proven Durability: We’ve seen these pumps hold up under severe conditions – from daily driven street cars pushing big boost to dedicated track machines. The build quality and premium materials mean fewer comebacks for fuel system issues.
• Real-World Performance: The 340 lph flow rate isn't just a number; it translates to stable fuel pressure under heavy load. This means your engine gets the fuel it needs, preventing lean conditions and allowing your tune to perform optimally. It helps maintain consistent air/fuel ratios, which is critical for both power and engine longevity.
• Engineered Fitment: The included setup kit is key. It eliminates the guesswork and custom fabrication often associated with aftermarket fuel pumps. This means a cleaner install, better long-term reliability, and less time on the lift.
• Headroom for Future Mods: The GT-R platform is all about pushing limits. These pumps provide ample fueling capacity, giving you room to grow with further engine modifications without needing another fuel system overhaul.
• CI Motorsports Confidence: We trust DeatschWerks. Their focus on high-performance fuel systems aligns with our commitment to providing reliable, effective upgrades. We wouldn't put it in your car if we wouldn't put it in ours.

Drive Your GT-R with Confidence

Don't let your fuel system be the weak link in your high-performance Nissan GT-R. The DeatschWerks 340lph DW300C Compact Fuel Pump with Set Up Kit provides the reliable, high-flow fuel delivery essential for modified R35 engines. It's a critical component for safe, consistent power, whether you're hitting the track or enjoying spirited street driving. Ensure your GT-R performs at its peak, every time you turn the key.

Shop this product today at CI Motorsports and give your GT-R the fuel system it deserves. Contact our team for any questions regarding this upgrade or installation.