Check out the standard SMP fuel systems catalogue of injectors.
http://www.smpbuyersguide.com/standard/gui...uide-2017/6.phpYou can search using the original Porsche or VW or Bosch part number for the injector and see what they say is the current part. (there may be some supercession)
For example, when I searched for 280150009 for a 1970-1973 Porsche gray 1.7 injector, it showed me FJ114 with a gray body and a curved hose
When I search for 0280150105 for a 1976 Porsche 2.0 like the 912e, I get an FJ707 white with a straight rubber hose
When I search for a 1974-75 Porsche 914 1.8 injector 280150123 I get an FJ 707 white body with a straight rubber hose on page 38, or an FJ6 green with a straight rubber hose. I believe this is telling us that the FJ6 injector can supply 167 cm3/min at 2.5 bar, 185 cm3/min at 3 bar, or even 265cm3/min at other fuel pressure, and with the different pulsing created by DJet or LJet.
You can click on the FJ6 on page 38 and it takes you to more detailed info on that injector. One of the PDF notes says that the color on the body means nothing and that they match the flow rate to the specs for the part number. Another explains that the long rubber hose is to be cut to length to match your original injector.
BWD has a similar online catalogue that shows:
1.7 gray injector is a FJ114 and their part # is 57517P or a green one 57517
2.0 Green injector is FJ707 their part # is 57519 or 57519P
1.8 tan injector is FJ3, FJ6, or FJ707 their part#57534P and is black.
Confused? I'd use my Porsche original part number, find the one listed as the replacement, and then I'd call Standard or BWD to confirm. Then finding one in stock somewhere to purchase is another story entirely. I think this might be what goes on in the back room at Pelican, or Sierra Madre, or automotion, or Stoddards. They have to spend their time figuring out what is available that they can sell us..... can we outsmart them, probably not, can we outsmart ourselves, probably....
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