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Injector Flows

The best guide to the flows of different injectors that we can find.

Click on pics to view larger images


We've found detailed specs for nearly 100 different injectors and summarised that information in a single comprehensive table. The information is rare and useful! So why would you want to know all of the stuff in the table anyway? It's damn important to know injector flow rates when you are sizing injectors for either a new system or an upgrade to an existing system. The flow rates shown in the table are those achieved at 100 per cent duty cycle, that is, with the injectors held fully open. In a well-sized system the injector duty cycle should not rise this high - a duty cycle maximum of about 90 per cent or so is about right.

For example, the Bosch 0 280 150 100 is listed as flowing a maximum of 185cc (cubic centimetres or millilitres) per minute when tested at a fuel pressure of 300kPa (~43psi).

Click for larger image

So, how much power is this injector good for? That depends on the air/fuel ratio that is used, but a good rule of thumb is to divide this flow figure by 5 to get a hp capability. So, 185cc divided by 5 = 37hp maximum fuel flow with this injector. If you want to be pedantic, it's the mass of the fuel (not the volume) which is the critical factor. Assuming a "normal" fuel density, the mass of the fuel in pounds per hour can be worked out by multiplying the cc per minute figure by 10.2. For this Bosch injector, that gives a mass flow of 18.1 pounds/hour. To convert from pounds/hour to horsepower capability, multiply the figure by 2.04. So 18 pounds/hour multiplied by 2.04 gives a horsepower capability of 37hp - the same as we got from the cc/minute figure.

Incidentally, if all of this mixing of units (pounds/hour, cc/minute, hp, kPa and psi) gives you the horrors, don't worry about using them all. Instead just pick the system you're happiest with (eg cc/minute and hp) and stick to that.

The power ratings discussed above are for each injector. This means that you need to multiply this rating by the number of injectors that are to be used. So, if you were using the Bosch 0 280 150 100 injectors in an eight cylinder engine (with one injector per cylinder) the max power that the injectors could deliver fuel for would be about 300hp.

Click for larger image

In addition to the variations in fuel flow from injector to injector, you will also notice that the injector resistance (ohms) varies. Injectors fall into two broad classes in terms of their coil resistance - "low" and "high". Low resistance injectors have 2-3 ohm coils, while high resistance injectors are up around 14-16 ohms. If you are upgrading a car to larger injectors, the new injectors should be of the same resistance class as those being replaced. If you are fitting programmable management, you must make sure that the ECU will be happy with the coil resistance of the injectors that you have selected.

Note also that injectors vary substantially in their size and shape. Some cars run side-feed injectors, while others are end-feed O-ring types, where the fuel rail holds the injectors in place. Still others use barbed hose fittings. Unless you are prepared to do custom machining and fabrication work, you need to be aware of the required injector size and shape before you make the selection. Finally, injector wiring plugs also vary; however, it's usually not much drama to wire in new plugs - assuming that you can get them!

The following table is provided courtesy of Advanced Engine Management, the makers of Wolf programmable systems. They have collated the test results of nearly 100 different injectors. You'll find lots more interesting information on fuel injection and the Wolf range at http://www.wolfems.com.au

A final note: the data in the following table is provided only as a guide. When installing new injectors you should always proceed with care, testing flow rates and measuring actual air/fuel ratios if you are at all unsure of the injectors that you have selected.

If you have any information that would help in increasing the quality of this data base, please email Advanced Engine Management at steve@aems.com.au Providing additional accurate information will help everyone!

Conversions

  • 500cc per minute is approximately equal to 49lbs per hour which is equal to approximately 100hp.
  • lbs/hour = cc per minute / 10.2
  • lbs per hour = HP / 2.04
  • cc per minute = lbs per hour x 10.2
  • cc per minute = HP x 5
  • HP = cc per minute / 5
  • HP = lbs per hour x 2.04


Fuel Injector Flow Rates

Injectors listed by flow rate, from lowest to highest

Manufacturer
Part Number
cc per minute Colour Ohms lbs per hour Est. hp. each Test Press.
kPa
Vehicles Engine
Bosch
0 280 150 208
133     13.0 26.6 300 BMW 323
Bosch
0 280 150 716
134     13.1 26.8 300    
Nippon Denso 145 light green 2.4 14.2 29.0 255 Toyota 4KE
Nippon Denso 145 green 2.4 14.2 29.0 255 Toyota 1GE
Bosch
0 280 150 211
146     14.3 29.2 300    
Lucas
5207007
147     14.4 29.4 270 Ford 1.6L
Lucas
5206003
147     14.4 29.4 300   Startlet
Bosch
0 280 150 715
149     14.6 29.8 300    
Nippon Denso 155 red/
dark blue
13.8 15.2 31.0 290 Toyota 3EE
Nippon Denso 155 violet 13.8 15.2 31.0 290 Toyota 3EE, 2EE
Nippon Denso 155 sky-blue 13.8 15.2 31.0 290 Toyota 1GFE
Nippon Denso 155 violet 13.8 15.2 31.0 290 Toyota 4AFE
Lucas
5207003
164     16.1 32.8 300 Buick 3.0
Lucas
5208006
164     16.1 32.8 250 Renault  
Bosch
0 280 150 704
170     16.7 34.0 300    
Bosch
0 280 150 209
176     17.3 35.2 300 Volvo B200,B230
Nippon Denso 176 light green 13.8 17.3 35.2 290 Toyota 4AFE
Nippon Denso 176 grey 13.8 17.3 35.2 290 Toyota 4AFE
Bosch
0 280 150 121
178     17.5 35.6      
Nippon Denso 182 dark grey 2.0 17.8 36.4 255 Toyota 4AGE
Nippon Denso 182 grey 2.4 17.8 36.4 255 Toyota 4ME,5ME, 5MGE
Bosch
0 280 150 203
185     18.1 37.0      
Bosch
0 280 150 100
185     18.1 37.0 300    
Bosch
0 280 150 114
185     18.1 37.0      
Bosch
0 280 150 116
185     18.1 37.0      
Bosch
0 280 150 125
188     18.4 37.6      
Lucas
5207002
188     18.4 37.6 250 Chev 5.0L
Lucas
5204001
188     18.4 37.6 250 Fiat  
Lucas
5208003
188     18.4 37.6 250 Alfa  
Lucas
5206002
188     18.4 37.6 250 Toyota  
Lucas
5208007
188     18.4 37.6 250 BMW 325E
Lucas
5202001
188     18.4 37.6 250 914 1.8L
Lucas
5208001
188     18.4 37.6 250 Nissan 280ZX
Bosch
0 280 150 614
189     18.5 37.8 300    
Manufacturer
Part Number
cc per minute Colour Ohms lbs per hour Est. hp. each Test Press.
kPa
Vehicles Engine
Lucas
5207013
201     19.7 40.2 270 Jeep 4.0L
Nippon Denso 200 dark grey 1.7 19.6 40.0 290 Toyota 3SFE
Nippon Denso 200 beige 1.7 19.6 40.0 290 Toyota 4YE
Nippon Denso 200 orange 1.7 19.6 40.0 290 Toyota 22RE
Nippon Denso 200 brown 1.7 19.6 40.0 290 Toyota 3VZE
Nippon Denso 200 pink 2.7 19.6 40.0 290 Toyota 4AGE
Nippon Denso 200 dark blue 13.8 19.6 40.0 290 Toyota 3SFE
Nippon Denso 200 orange/
blue
13.8 19.6 40.0 290 Toyota 22RE
Nippon Denso 200 brown 13.8 19.6 40.0 290 Toyota 3VZFE
Nippon Denso 200 red 13.8 19.6 40.0 290 Toyota 2VZFE
Nippon Denso 210 blue 2.4 20.6 42.0 255 Toyota 4AGE
Nippon Denso 213 sky blue 13.8 20.9 42.6 290 Toyota 3FE
Nippon Denso 213 beige 13.8 20.9 42.6 290 Toyota 4AGE
Nippon Denso 213 yellow 13.8 20.9 42.6 290 Toyota 5SFE
Bosch
0 280 150 706
214     21.0 42.8 250    
Bosch
0 280 150 712
214     21.0 42.8 250 Saab 2.31 Turbo
Bosch
0 280 150 762
214     21.0 42.8 300 Volvo B230F
Bosch
0 280 150 157
214     21.0 42.8 250 Jaguar 4.2L
Lucas
5207011
218     21.4 43.6 300 Chev 5.7L
Bosch
0 280 150152
230     22.5 46.0 ? Alfa Turbo
Bosch
0 280 150 201
236     23.1 47.2 300    
Lucas
5208005
237     23.1 47.2 250 Chrysler,
BMW
 
Lucas
5208004
237     23.1 47.2 250 Ford 98CID
Bosch
0 280 150 151
240     23.5 48.0 ? BMW 633
Nippon Denso 250 yellow/
orange
1.7 24.5 50.0 255 Toyota 22RTE
Nippon Denso 250 green 13.8 24.5 50.0 290 Toyota 4AGE
Nippon Denso 250 violet 13.8 24.5 50.0 290 Toyota 4AGE
Nippon Denso 250 brown 13.8 24.5 50.0 255 Toyota 3SGE
Nippon Denso 251 violet 13.8 24.5 50.2 290 Toyota 1UZFE
Bosch
0 280 150 001
265     26.0 53.0 300    
Bosch
0 280 150 002
265     26.0 53.0 300    
Bosch
0 280 150 009
265     26.0 53.0 300    
Nippon Denso 282 light green 13.8 27.6 56.4 290 Toyota 2RZE
Nippon Denso 282 violet 13.8 27.6 56.4 290 Toyota 2TZFE
Bosch
0 280 150 802
284     27.8 56.8 300 Volvo, Renault B200Turbo, J7R Turbo
Nippon Denso 295 yellow 2.7 28.9 59.0 255 Toyota 7MGE
Nippon Denso 295 pink 1.6 28.9 59.0 255 Toyota 22RTE
Nippon Denso 295 green 13.8 28.9 59.0 255 Toyota 3SGE
Bosch
0 280 150 811
298     29.2 59.6 350 Porsche 944 Turbo
Manufacturer
Part Number
cc per minute Colour Ohms lbs per hour Est. hp. each Test Press.
kPa
Vehicles Engine
Bosch
0 280 150 200
300     29.4 60.0 300 BMW  
Bosch
0 280 150 335
300     29.4 60.0 300 Volvo B230 Turbo
Bosch
0 280 150 945
300 red/
brown
  29.4 60.0   Ford MotorSport
Nippon Denso 315 pink 13.8 30.9 63.0 290 Toyota 3SGE
Nippon Denso 315 light green 13.8 30.9 63.0 290 Toyota 7MGE
Bosch
0 280 150 804
337     33.0 67.4 300 Peugot 505 Turbo
Bosch
0 280 150 402
338     33.1 67.6 300 Ford  
Bosch
0 280 155 009
346     33.9 69.2 300 Saab Turbo  
Bosch
0 280 150 951
346     33.9 69.2 300 Porsche  
Nippon Denso 365 red/
orange
2.9 33.9 73.0 255 Toyota 4AGZE
Bosch
0 280 150 003
380     37.3 76.0 300    
Bosch
0 280 150 015
380     37.3 76.0 300    
Bosch
0 280 150 024
380     37.3 76.0 300 Volvo B30E
Bosch
0 280 150 026
380     37.3 76.0 300    
Bosch
0 280 150 036
380     37.3 76.0 300 MB 4.51
Bosch
0 280 150 043
380     37.3 76.0 300 BMW  
Bosch
0 280 150 814
384     37.6 76.8 300    
Bosch
0 280 150 834
397     38.9 79.4 300    
Bosch
0 280 150 835
397     38.9 79.4 300 Chrysler  
Nippon Denso 430 black 2.9 42.2 86.0 255 Toyota 7MGTE, 3SGTE
Bosch
R 280 410 144
434     42.5 86.8 300 Bosch R Sport  
Bosch
0 280 150 400
437     42.8 87.4 300 Ford 4.51
Bosch
0 280 150 401
437     42.8 87.4 300 Ford  
Bosch
0 280 150 041
480     47.1 96.0 300 MB 6.91
Bosch
0 280 150 403
503 blue 0.5 49.3 100.6 300 Ford  

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