Ess 550/575 kit injectors flow rate

[Steveb]

Anyone know the flow rate of the injectors supplied in the ess 550 kits please

[S54B32]

Also interested in this. Particular more the difference between 475 to 575 kit in terms of injectors, as I bought a used kit and not sure what injectors are with it. But anyway I will rebuild and flow check these. But a reference would be great.

Maybe Martyn will know more.

[Martyn]

They’re Siemens Deka 630cc run at 3/3.5bar from memory.

[martin.oconnor]

This is from an email I got from ESS:

The injector is custom, not made by Bosch. It is a Siemens core and they are 630cc @ 3bar pressure.

Stock injectors are rated 270cc@3bar, 340@ 5bar which is the S54 stock fuel pressure.