When choosing High Performance injectors, the wrong choice can cost you performance, time and money...
At Marren, we specialize in getting you the correct injectors the first time!
FUEL INJECTORS
Fuel injectors are the essential element when running a performance EFI system. The motor cannot reach its
full potential if the injectors that the engine management system control are not delivering the proper
amount of fuel. Competition electronic fuel injectors are available in varying flow rates for all
applications of high performance to racing specifications in auto and marine.
Static flow rates (lb/hr) are estimated at 43.5 psi (3 bar) fuel pressure. All injectors are flow tested
and put into matched sets with the flow rate tolerance of 0 to 2%. Injectors can also be purchased
without being tested (factory tolerance).
Matching the Injector to the Engine:
| Injector Flow Rate (lb/hr) = |
Engine HPx BSFC
Number of Injectors x 0.8 |
For example, to calculate the individual injector size for a 650 HP V using 8 injectors and assuming a
BSFC of 0.5:
| Injector Flow Rate (lb/hr) = |
650 x 0.5
8x0.8 |
= 50.78 lb/hr |
If you know an injector flow rate, you can solve the above equation for a rough estimate of fuel system
capacity like this:
| Engine HP = |
Injector Flow Rate x Number of Injectors x 0.8
BSFC |
For example, using the same estimated values from above:
| Engine HP = |
50 x 8 x 0.8
0.5 |
= 640 HP |
Electronic Fuel Injectors
| Part Number |
Description |
Ohms |
| 0524 |
24lb/hr |
High |
| 0530 |
30lb/hr |
High |
| 0536 |
36lb/hr |
High |
|
|
|
| 0526 |
26lb/hr |
Low |
| 0534 |
34lb/hr |
Low |
| 0538 |
36lb/hr |
Low Hose End |
| 0542 |
42lb/hr |
Low |
|
|
|
| 0541 |
42lb/hr |
High |
| 0550 |
50lb/hr |
High |
|
|
|
| 0551 |
50lb/hr |
Low |
| 0552 |
52lb/hr |
Low |
| 0555 |
55lb/hr |
Low |
| 0572 |
72lb/hr |
Low |
| 0582 |
82lb/hr |
Low |
| 0596 |
96lb/hr |
Low |
| 05160 |
160lb/hr |
Low |
|
|
|
If you do not see an injector that may meet your requirements, please give us a call,
it is impossible to list all the injectors we carry.
We also offer stock fuel injectors. Please call with the vehicle specifications.
MARREN FUEL INJECTION
49 Burtville Ave., Unit 3A
Derby, CT 06418
Phone: (203) 732-4565
 
E-MAIL
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