Fuel Injectors (flows and numbers)

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when surfing the world wide net if found this and thought it may help all the members who are looking to tune injected engines

Injector Flows

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

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.

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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