Our Price: $139.95
Fuel Rail
Plumbing Kit
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Description 


Click here to download installation instructions (PDF)

OVERVIEW
This fuel rail is CNC machined from extruded 6063 aluminum, black anodized, and laser etched for a high quality surface finish. It is a direct replacement for the OEM fuel rail. Plumbing kits are avaialble that provide all the necessary parts to install and plumb the fuel rail with OEM components. 
This kit is compatible with all fuel types including popular alcohol mixtures such as E85. The OEM plastic spacers are reused and phenolic washers are included to thermally insulate the fuel rail from the aluminum intake manifold. 


PORTS AND FITTINGS

The fuel rail features three threaded ports that are all tapped for 8AN ORB. What is ORB? Click HERE
The auxiliary top port on the fuel rail can be used for fuel system accessories such as a pressure gauge, fuel pulse damper, or it can simply be plugged.

8AN ORB Adapter Fittings can be found HERE.
8AN ORB Direct Mount Regulators can be found HERE.
8AN ORB Fuel Pulse Dampers can be found HERE.
Fuel Pressure Gauge Adapters can be found HERE.

If building a custom fuel setup, appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.


COMPATIBILITY
This fuel rail is
 compatible with most Mazda 1.8L DOHC BP engines:

1994-1997 Mazda Miata
1999-2005 Mazda MX-5 
1994-1996 Eunos Roadster

Installation on a 94-97 Miata shown below:

As shown in the diagram below, there are two different mounting locations on the fuel rail, which allow it to be installed on mutliple engines.


FUEL INJECTOR COMPATIBILITY
Like the OEM fuel rails, the injector bores are 11mm ID so factory injectors are compatible. However, any aftermarket fuel injectors can be used as long as they have the same overall height and O-ring diameters as the OEM injectors.


OPTIONS

20-0369 Fuel Rail, Mazda MX-5
This is the basic fuel rail kit, and only includes the fuel rail and the mounting hardware as shown in the picture below. This is ideal for custom applications where the installer is going to build custom fuel system plumbing.
For easy installation with the OEM fuel system, select a plumbing kit (shown below).

PLUMBING KITS

20-0422 Fuel Rail Plumbing, 94-97 Mazda MX-5 
This add-on kit permits a plug and play replacement for the OEM system on 1994-1997 Miatas. The OEM fuel pressure regulator is retained and the fuel feed and fuel return hoses are replaced.

INCLUDED IN 20-0422:
14-0294 8AN ORB to 5/16" Barb Fitting
20-0301 8AN ORB to OEM FPR Fitting
14-0150 8AN ORB Plug
Vapor Shield 5/16" Fuel Hose 

20-0423 Fuel Rail Plumbing, 99-05 Mazda MX-5
 
This add-on kit, shown below, permits plug and play replacement for the OEM system on the 1999-2005 MX-5. The OEM fuel pulse damper and fuel feed hose are retained. NOTE: If equipped, the EGR must be removed for the OEM fuel pulse damper fitment.

INCLUDED 20-0423:
20-0301 8AN ORB to OEM FPD Adapter Fitting
14-0151 8AN ORB to 6AN Male Fitting
14-0268 6AN 90 Degree Female Coupler
14-0146 SAE Quick Connect Fitting
14-0150 8AN ORB Plug

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