[Richard L]

This set up is pretty popular on the Mazda and Focus platform. But not as large as your 4x 0.6mm. It allows good fuel supplement on those DI engine without any aftermarket large injectors available.

Certainly a five-jet set makes total sense, Good fuel distribution and ample charge air cooling.

The pump can be wound up to 225psi but will compromise the linearity of the system. As the flow increase, the pressure will drop much quicker than 160psi. It is the same as a tall water tank and and short tank with the same capacity, water level drops faster on a taller tank.

You can a adjust it to 185- 200psi to offset some manifold pressure. Beyond this is not acceptable.

Do you have a logs to post up here? I like to see the STFT.