Product Description

JBtuned EG/EK Civic & DC Integra K-Swap Complete Fuel System

The JBtuned K-Swap Complete Fuel System is designed for Honda Civic EG, Civic EK, and Acura Integra DC chassis running a K20 or K24 engine swap.

This system replaces the factory fuel feed line from the fuel tank to the engine bay with a complete AN fuel system and adds a dedicated 6AN return line from the fuel pressure regulator back to the tank.

Choose a 6AN or 8AN feed line and either standard rubber AN hose for pump gasoline or PTFE braided hose for E85, ethanol, race fuel, and multi-fuel applications.

The system is built to match your chassis, engine, intake manifold, fuel rail, and other selected components.

Vehicle & Engine Compatibility

Designed for:

• Honda Civic EG
• Honda Civic EK
• Acura Integra DC / DC2
• K20 engine swaps
• K24 engine swaps

K-swaps can be assembled using many different combinations of engines, intake manifolds, fuel rails, regulators, engine mounts, turbo manifolds, and other components.

The options selected when ordering provide us with the information needed to build the system for your combination.

If you have an unusual or one-off setup, contact JBtuned before ordering so we can help verify the configuration.

Fuel Line Options

Rubber AN Hose — Pump Gasoline

Choose the standard rubber AN hose option for vehicles running pump gasoline only.

If you plan to run E85, ethanol, methanol, race fuel, or may convert to one of these fuels later, choose the PTFE option instead.

PTFE Braided Fuel Hose — E85 / Ethanol / Race Fuel

The PTFE version is designed for customers who need broad fuel compatibility.

Compatible fuels include:

• Pump gasoline
• E85
• E100
• C16
• M1
• M5
• Q16
• Other fuels compatible with PTFE fuel hose

PTFE is also a good choice for a gasoline vehicle that may be converted to E85 or another specialty fuel in the future.

Fuel Line Configuration

Feed Line:
Choose either 6AN or 8AN.

Return Line:
Always 6AN.

The system replaces the factory feed-line routing from the tank to the engine bay and adds a dedicated return line from the fuel pressure regulator back to the tank.

The standard configuration is designed around mounting the fuel pressure regulator on the left side of the fuel rail — USDM driver's side.

Designed With Turbo K-Swaps in Mind

We designed the routing of this system with turbocharged K-swapped cars in mind, including vehicles using sidewinder-style turbo manifolds.

The lines are routed low and away from major heat sources wherever possible.

Every turbo installation is different. Turbo placement, wastegate position, exhaust-manifold design, downpipe routing, and other custom fabrication can change how close the fuel lines are to extreme heat.

If your fuel lines will pass near the turbocharger or exhaust components, we strongly recommend selecting the High Heat Sleeve option.

What You Need Before Ordering

This system requires:

• Aftermarket fuel rail
• External fuel pressure regulator
• Compatible fuel pump
• Properly configured fuel-pump sending unit
• Professional installation

The fuel pressure regulator must have a compatible connection for the configuration being ordered.

The kit is built with the appropriate fuel-rail and regulator fittings based on the options you select.

ORDERING OPTIONS EXPLAINED

Chassis

Select the chassis the system is being installed in.

The chassis determines fuel-line lengths and portions of the routing.

Engine

Select the K-series engine being used.

Your engine configuration affects how the system is assembled.

Intake Manifold

Select the intake manifold being used.

The engine and intake-manifold combination helps determine line routing and component placement.

Fuel Rail

Select your aftermarket fuel rail.

Different fuel rails use different ports and fittings. This information allows us to supply the correct connections with your kit.

Feed Line Size

Choose:

• 6AN Feed
• 8AN Feed

The return line remains 6AN regardless of feed-line size.

Fuel Line Material

Choose:

Rubber AN Hose
For pump gasoline applications.

PTFE Braided Hose
For pump gasoline, E85, E100, ethanol, and compatible specialty/race fuels.

Fuel Filter Option

The base fuel-system kit does not include a fuel filter.

Select the Fuel Filter option if you want us to integrate a fuel filter into the feed side of the system.

The filter configuration includes the fittings and mounting components required for that installation.

Installing the filter requires mounting it to the vehicle and may require drilling/rivnuts depending on the chassis and mounting location.

Flex-Fuel Sensor Provision

This option does not include the actual flex-fuel sensor.

Selecting this option tells us that you plan to install a flex-fuel sensor.

We modify the fuel-line configuration to provide the correct location and line arrangement for the sensor.

If you need the sensor itself:

Shop JBtuned Genuine Continental Flex-Fuel Sensor

Depending on the chassis and mounting location, installing the sensor may require lowering the fuel tank to gain access for drilling.

Some 1994–1995 Integra applications have an existing factory opening that may be usable.

High Heat Sleeve

The High Heat Sleeve option adds protective sleeving to fuel-line sections that may be exposed to elevated temperatures.

We recommend this option for turbocharged vehicles using configurations such as:

• Sidewinder turbo manifolds
• Turbochargers positioned over the transmission
• Fuel lines passing near the turbocharger
• Lines near a wastegate
• Lines near a downpipe or exhaust manifold

The heat protection is added while the lines are being assembled.

JBtuned Fuel Pump Hanger Upgrade Kit

The factory Honda fuel-pump sending unit was not designed around large aftermarket pumps and AN feed/return systems.

Our JBtuned Civic/Integra OEM Fuel Pump Hanger Upgrade Kit modifies the OEM sending unit to provide the connections needed for the upgraded fuel system.

The configuration changes depending on the fuel pump being installed, which is why we ask which pump you are using when ordering.

The hanger upgrade includes components such as the PTFE in-tank pump line, required clamps, AN bulkhead fittings, and upgraded electrical bulkhead components for the selected configuration.

We strongly recommend this upgrade if your sending unit has not already been properly modified for an aftermarket AN fuel system.

Learn More / Shop JBtuned Fuel Pump Hanger Upgrade Kit

JBtuned Fuel & Brake Line Holder Brackets

For a cleaner under-car installation, we recommend our JBtuned Fuel & Brake Line Holder Brackets.

These replace the older P-clamp-style mounting option and provide a cleaner way to secure and route the feed and return lines along the underside of the chassis.

Shop JBtuned Fuel & Brake Line Holder Brackets

WHAT COMES WITH THE BASE KIT

The base configuration includes:

• Complete feed fuel line
• Complete 6AN return fuel line
• Fuel-rail fittings for your selected configuration
• Fuel-pressure-regulator connection fitting
• Required AN fittings for the base system
• Two included clamps
• Fuel lines assembled and ready for installation

The base kit does NOT include a fuel filter.

COMPLETE YOUR FUEL SYSTEM

A complete K-swap fuel system may require additional components depending on what is already installed on your vehicle.

Fuel Pressure Regulator — Required

This system requires an external adjustable fuel pressure regulator.

For most configurations, we recommend the AEM 25-302BK Adjustable Fuel Pressure Regulator.

Shop AEM Adjustable Fuel Pressure Regulator

Fuel Pump

A fuel pump is not included with the base fuel-system kit.

Choose the fuel pump appropriate for your engine combination, horsepower goal, fuel type, and electrical system.

Shop Fuel Pumps

Fuel Pump Hanger Upgrade

If the OEM sending unit has not already been modified for the aftermarket pump and AN fuel system, we recommend adding the JBtuned hanger upgrade.

Shop JBtuned Civic/Integra Fuel Pump Hanger Upgrade Kit

Continental Flex-Fuel Sensor

If you select the Flex-Fuel Sensor Provision, the sensor itself is still purchased separately.

Shop JBtuned Genuine Continental Flex-Fuel Sensor

Flex-Fuel Sensor 6AN Fittings

These quick-connect fittings attach to the flex-fuel sensor and convert the sensor connections for integration into the 6AN fuel system.

Shop Flex-Fuel Sensor Quick-Connect Fittings

Hondata Flex-Fuel Wiring Harness

For compatible Hondata systems, JBtuned offers a flex-fuel sensor wiring harness designed to connect the sensor and provide the wiring needed to reach the ECU in the factory location.

Shop JBtuned Hondata Flex-Fuel Sensor Harness

JBtuned Fuel & Brake Line Holder Brackets

For a clean installation underneath the chassis, use our dedicated fuel and brake line mounting brackets instead of traditional P-clamps.

Shop JBtuned Fuel & Brake Line Holder Brackets

A TYPICAL FLEX-FUEL K-SWAP SETUP

For a customer building a complete E85/flex-fuel K-swapped Civic or Integra, a typical system may include:

• JBtuned K-Swap Complete Fuel System
• PTFE braided fuel-line option
• 6AN or 8AN feed
• 6AN return
• Fuel-filter option
• Flex-fuel sensor provision
• Continental flex-fuel sensor
• Flex-fuel sensor fittings
• Flex-fuel wiring harness
• External adjustable fuel-pressure regulator
• Properly sized aftermarket fuel pump
• JBtuned Fuel Pump Hanger Upgrade Kit
• JBtuned Fuel & Brake Line Holder Brackets

IMPORTANT INSTALLATION INFORMATION

K-swapped vehicles can vary significantly from car to car.

Different combinations of:

• Engines
• Intake manifolds
• Fuel rails
• Fuel pressure regulators
• Engine mounts
• Turbo manifolds
• Turbochargers
• Wastegates
• Downpipes
• Custom fabrication

can affect fuel-line routing and component placement.

If your vehicle uses an unusual combination of components, contact JBtuned before ordering and we will help determine whether the standard configuration will work for your setup.

Some options require drilling, mounting hardware installation, or modification of factory components.

Professional installation required.

For off-road use only.

Not DOT approved.