Weldon Fuel Pumps and Systems by SR Motorsports.

1986-1991 Mazda RX-7 Fuel System

THE FUEL SYSTEM
Is the most important part of the horsepower equation. It is also the most overlooked and misunderstood. If you want your motor to last, then you must have enough fuel to support the horsepower level that you want to achieve. We offer custom fuel systems for each application. We pride ourselves on doing the job only once. The rotary engine needs a lot of fuel to survive. Do you want to try to save a few dollars, or to do it right the first time?

CUSTOM FUEL RAILS
For those who need big horsepower , you also need larger fuel injectors. We offer these larger injectors in several ways. We have some drop-in replacement larger injectors for some applications. Others require a modified fuel rail to allow for the larger injectors.We offer these custom fuel rails. Please call for information.

FUEL PUMPS
Fuel pump flow ratings should be taken at 40-43.5 psi of fuel pressure. That gives you an accurate rating of the horsepower level that each pump is capable of. Many places rate their fuel pumps at a very high fuel pressure.Claiming that a pump will flow enough for 500hp (while at 90+ PSI of fuel pressure! )That is way too much. We have all of the flow charts for pumps that we sell. Just ask.

REGULATORS
An adjustable raising rate fuel pressure regulator is another important part of the system.This will compensate for boost in turbocharged cars.(It gives you a 1-1 ratio of boost psi and fuel psi increase) We also sell an adjustable rising rate regulator (R.R.R.) which will add more fuel per pound of boost (sometimes up to 4-1 ratio) to allow you to run higher boost safely.

Fuel Injectors

Product Description

PRICE

680cc Nipondenso Injectors

$155 each

Part Number FS-10156

720cc Nipondenso Injectors

$155 each

Part Number FS-10164

850cc Bosch Injectors

$155 each

Part Number FS-10184

.1700cc Bosch Injectors

These top feed , low impedence high flow injectors, may be just what you need for your high HP fuel flow needs.

SALE

$119 each

Was $199

Part Number FS-10219

*With your good 850cc injector for a core

Custom Built Fuel Rails
These allow for the use of Bosch large injectors for high horsepower cars.

Product Description

PRICE

1987-1991 Turbo II 850cc to 1600cc Secondary Fuel Rail (allows you to bolt-in larger 850to 1700cc Bosch injectors)

from $169

Part Number FS-10190

High Performance Fuel Pumps

Product Description

PRICE

86-91 RX-7 OEM fuel filter

$49

Part Number FS-10211

HP Nipondenso Fuel Pump

This is our high flow Nipondenso fuel pump that we import from Japan. It is the favorite pump of many Japanese supertuners. This is the highest flowing fuel pump available from Nipondenso .

(It is also a direct drop-in bolt on replacement for any 87-95 RX-7. This is the one we use in our Project 93' Car.)

$349

Part Number FS-10212

1987-1995 RX-7

SR Ultimate II Fuel Pump
This is an in-tank pump that is for very high horsepower cars.It makes well over 550HP in our single turbo cars. It is an exact fit with no cutting required.

Flows over 74 GPH at 43psi

$499

Part Number FS-10224

Click here for the best pump available Weldon Fuel Pump

Weldon Fuel Pumps are the finest pumps available. We use the Weldon Fuel Pump in all of our race cars. The Weldon Pumps are not cheap , but what is your motor worth?

WELDON RACING PUMPS

Weldon Fuel Pumps are the finest pumps available. We use the Weldon Fuel Pump in all of our race cars. The Weldon Pumps are not cheap , but what is your motor worth ?

( Weldon 2040 Regulator, Weldon 2345 Pump and Weldon Filter shown )

Pump #

Flow at 40 PSI

PRICE

WELDON 600

Weldon's new inline fuel pump.

70 Gallons Per Hour at 40psi.

Weldon 600 pump stainless mount kit - $39.99

~~$505~~

SALE

$399 Thru Friday

WELDON 9200

Weldon's fluid pump.

Weldon 9200 pump stainless mount - $39

~~$557~~

SALE

$399 Thru Friday

WELDON 2005

83 Gallons Per Hour at 40psi.

~~$859~~

SALE

$599 Thru Friday

WELDON 2015

107 Gallons Per Hour at 40psi.

~~$971~~

SALE

$679 Thru Friday

WELDON 2025

165 Gallons Per Hour at 40psi.

~~$1044~~

SALE

$729 Thru Friday

WELDON 2035

210 Gallons Per Hour at 40psi.

~~$1190~~

SALE

$829Thru Friday

WELDON 2345

260 Gallons Per Hour at 40psi.

~~$1602~~

SALE

$1119 Thru Friday

WELDON 2040

Regulator

~~$321~~

SALE

$249 Thru Friday

WELDON 2047

High Flow Regulator

Use for the larger pumps.

~~$455~~

SALE

$329 Thru Friday

WELDON

14000

Dial-a-Flow

Weldon Dial-a-Flow

~~$493~~

SALE

$389 Thru Friday

WELDON

Fuel Filters

Weldon Billet aluminum ( 10 or 40 micron filters. )

Weldon Filter replacement cartridge - $17.99

~~$158~~

SALE

$119

Thru Friday

High Performance fuel pumps, Fuel Injectors

Weldon Fuel Pump Road & Track Combo

Combo Pack Includes:

(1) Weldon 2015 Pump

(1) 2040 Fuel Regulator

(1) 14000 Dial-a-Flow

( Injection or Carb)

SALE $1209 Thru Friday

Regular $1899

High Performance fuel pumps, Fuel Injectors

Weldon Fuel Pump Street Combo

Combo Pack Includes:

(1) Weldon 2025 Pump

(1) 2040 Fuel Regulator

(1) 14000 Dial-a-Flow

( Injection or Carb)

SALE $1259 Thru Friday

Regular $1949

Call for other Weldon Fuel Pumps not listed