Fuel Injectors Flow Rate

[Bubu]

Does anyone know the flow rate (in cc) of the GTI injectors?

Would upgrading to the K04 require a new fuel regulator and larger injectors? Or will that only be requiered if your going to a GT28 turbo?

[99gti]

Fuel pressure regulator yes, but standard injectors are ok for the K04.

The GT28 i believe needs bigger injectors.

[Flaps]

I'd change the injectors for K04 upgrade. Do both for GT28.

[GT3]

I'd change the injectors for K04 upgrade. Do both for GT28.

why? the KO4 only requires a new fuel regulator

[h100vw]

The TT and S3 with the 225 hp motors have bigger injectors as std. It would seem sensible tome to go for bigger ones if upgrading the turbo to a K04, unless you are not going to be using a 3 inch MAF.

Gavin

[Guy_H]

What you need to know is the desired fuel rate - three factors:

Injector size, Fuel pressure regulator, and fuel pump.

Its not much use putting a 5 bar FPR on it as you anly have a 3 bar fuel pump etc etc. You can go to a 4 bar fuel pump (TT / S3) but to be honest - the K04 is happilly fed by stock injectors & 4 bar FPR (with stock pump)

on our TT kit, we use a 5 bar FPR, 4 bar fuel pump in tank (now as the lift pump), 4 bar fuel pump in line & some pretty big Bosch Motorsport injectors