Does anybody know the size of the injectors for the stock 20b and at what fuel pressure is it measured?

 

There all 550cc's. Not sure what the stock fuel pressure is. Might wanna check out the 20b FAQ section at the top.

-Destin

 

Um, why does fuel pressure matter???
The primaries are identical to FD primaries.
The secondaries are identical to Kouki FC primary / secondaries.
They are all high impedence.
They all flow the same rates.


-Ted

 

pressure makes a huge difference FYI the more the pressure than more gas you are puhing through the injectors . when manufacturer rates an injector as a 550 cc injector its is rated so at a certain pressure ,not at any pressure

 

My point is that specs can be easily found in the Mazda FSM's for the above.
I know the relationship between "capacity" / flowrate and fuel rail pressure; it's really dumb to bring up that point, cause now we got fuel injectors that will flow anywhere from 300 cc/min to 800 cc/min?!?!??!


-Ted

 

I believe injector flow rates are measured with 40psi rail pressure. But if they have the injectors you specified, they would be 550's.

 

Thanks for the information.

Mattias