I have read about BBs and G code injectors, but how do I know what I have got? Mine says:

S STANADYNE 5-05
781535
Made in Italy.

 

The injector code should be stamped on one of the flats of the injector that you use the socket or wrench on.

 

Thanks! Its a D code. Whats that mean?

 

It means that it ain't no BB or G or E Lol, the difference supposedly is in the pop-pressure, also G-codes are considered "emissions" injectors as their nozzles sit slightly higher up in the chambers which apparently is not optimal for performance but somehow help lower emissions?

 

maybe thats y ur slow

 

What are the diffrent injectors for?

I know what Gs and Es are for, but what about BBs, Ds and any other they may have made?
Both me and Joe have BBs in our trucks, and I have Ds on the shelf.

 

You know what E-code injectors are for? What's their purpose? Emissions? That's what's in my IDI. I bought a set of BB-code injectors and they're waiting to be installed. I'm not sure about D-code.

 

Ya know, I think I got it wrong - I think it was the E-codes that were emissions, and the G-code are the turbo-specific injectors...

 

G code are turbo injectors

 

And BB are best for NA? What about D?

 

BB are best

 

Maybe that's why my IDI is such a turd.

 

I did a search for D code injectors, found nothing.

 

BBs are very popular for turbo engines too, at least among those folks who actually care to replace their injectors when needed. I know they can be shimmed for different pop-pressure, Dyoung (the guy with the 4400 rpm engine) has a set adjusted at 2200psi IIRC, so maybe the codes are just a designation for distinguishing the different pop-pressures at the factory? Well with the exception of the E-codes cause of their different fitment.

Could be just the injectors are tired, regardless of what code they are...

Even tho I have some on my engine, about all I know about them is they exist, lol.