What Is the DeatschWerks DW300C?

The DeatschWerks 9-307-1000 DW300C is a:

• Compact high-flow in-tank fuel pump
• Rated at approximately 340 liters per hour (LPH)

This version includes:

• Universal installation kit
• No dedicated mounting solution included

The compact design makes it especially useful for:

• Tight fuel tank configurations
• Custom fuel systems
• Engine swaps
• Motorsport applications

Where space becomes extremely limited.

And in swapped cars?
Space disappears faster than money at a race shop.

Why the DW300C Is So Popular

The DW300C became extremely popular because it offers an excellent balance between:

• Fuel flow
• Reliability
• Compact packaging
• Ethanol compatibility

It supports significantly more fuel demand than factory pumps while remaining:

• Street friendly
• Relatively quiet
• Easy to integrate

This makes it ideal for:

• Daily-driven turbo cars
• E85 street builds
• Moderate-to-high horsepower projects

Without immediately jumping into:

• Dual pump systems
• Brushless race setups
• Full standalone fuel cells

Not every project needs NASCAR-level complexity.
Some people still enjoy functioning interiors.

340LPH Fuel Flow Supports Serious Power

A 340LPH pump is capable of supporting substantial horsepower depending on:

• Fuel pressure
• Voltage
• Fuel type
• Injector sizing

Especially on:

• Gasoline
• Flex fuel
• Moderate E85 builds

This makes the DW300C ideal for:

• Turbo Hondas
• WRX/STI builds
• Evo projects
• LS swaps
• Mustang applications
• Nissan turbo builds

Basically:
Anything boosted enough to make traction optional.

Why E85 Changes Fuel System Requirements

Modern performance tuning heavily revolves around E85 because ethanol provides:

• Better knock resistance
• Cooler combustion temperatures
• Increased timing potential
• Higher boost tolerance

But ethanol also requires significantly more fuel volume than gasoline.

That means:

• Fuel pumps work harder
• Fuel systems become critical
• Injector demand increases dramatically

A weak fuel pump on E85 becomes a problem very quickly.

Usually around peak boost.
Usually while somebody’s filming.

Compact Design Makes Engine Swaps Easier

One of the biggest advantages of the DW300C is its compact footprint.

This makes it perfect for:

• Custom fuel tanks
• Tight OEM fuel modules
• Engine-swapped vehicles
• Universal performance applications

Especially projects where:

• Space is limited
• Factory pump baskets are awkward
• Fabrication flexibility matters

Which describes approximately 97% of swapped cars.

Universal Installation Flexibility

The included universal install kit helps support:

• Custom fuel setups
• Performance fuel system upgrades
• Motorsport installations

However, this version does NOT include a dedicated mounting solution.

That means:

• Some fabrication may be required
• Vehicle-specific adaptation may be necessary

This pump is best suited for:

• Experienced enthusiasts
• Fabricators
• Custom performance builds

In other words:
People comfortable solving problems with AN fittings and determination.

Perfect Supporting Mod for Larger Injectors

Fuel pumps and injectors work together.

Once injector sizes increase:

• 750cc
• 1000cc
• 1500cc+

…the factory fuel pump often becomes inadequate immediately.

The DW300C helps provide:

• Stable fuel pressure
• Increased fuel volume
• Better injector support

Especially under:

• High RPM operation
• Heavy boost
• Aggressive tuning

Because running out of fuel at full throttle remains one of the least recommended tuning strategies.

Supporting Mods You Should Pair With It

A high-flow pump works best alongside:

• Larger injectors
• Ethanol-safe fuel lines
• Adjustable fuel pressure regulator
• Flex fuel sensor
• Proper ECU tuning

Because fuel systems are ecosystems.

One weak component eventually limits everything else.

Usually at maximum load.
Usually in spectacular fashion.

Professional Installation Recommended

While universal pumps offer flexibility, professional installation is strongly recommended for:

• Fuel line routing
• Electrical wiring
• Pressure verification
• Ethanol compatibility checks

Especially on:

• Turbocharged cars
• E85 builds
• High-horsepower applications

Because fuel system mistakes become dangerous extremely quickly.

Why Enthusiasts Trust DeatschWerks

DeatschWerks has become one of the most trusted names in aftermarket fueling because they focus heavily on:

• Fuel injector engineering
• High-flow fuel pumps
• Ethanol compatibility
• Motorsport durability

Their products are widely used across:

• Drag racing
• Drift competition
• Street performance
• Roll racing
• Time attack

Reliable fueling remains one of the most important foundations of reliable horsepower.

Without it, everything else becomes temporary.

Final Thoughts

The DeatschWerks 9-307-1000 DW300C Compact Fuel Pump is an outstanding fueling upgrade for enthusiasts building reliable horsepower in tight packaging environments.

With:

• 340LPH flow capability
• Compact sizing
• E85 compatibility
• Universal flexibility

…it’s an ideal choice for:

• Turbocharged street cars
• Flex fuel setups
• Engine swaps
• Custom fuel systems

Because once horsepower starts climbing, fuel delivery becomes critical infrastructure.

And engines under boost have absolutely no sympathy for weak fuel pumps.