who's using a RRFPR?

[wizegi///m3]

Originally Posted by Richard L

The line pressure for the Water injection system seem to be a bit low. Can you re-spring the RRFR ro control betwem 125psi to 150psi? If you lower the line presusre, you will not be getting the correct water flow out of those jets.

The HFS-5 can be triggered by Fuel duty cycler (PWM) for MPS or MSP sensor (0-5V).

YOu can double the flow by feeding the HFS-5 with two injector pulses. cylinder 1 and 4 etc.

When I was speaking about the 43 - 70 psi I was speaking about my fuel pressure.

My water pressure is set to the default 125psi (may go up to 150 to increase flow).

We are currently planning to control the system via PWM, my concern is that the Fuel duty cycle will not increase as while boost builds the fuel pressure will increase, injecting more fuel, but the duty cycle will not.

So my question is the only way to make it increase water injection follow boost is to use a RRFPR on my HFS-5? I want the system to inject a small amount of water say at 6psi and then increase flow as boost / more fule is used to redline.

Can it vary flow; or once it trips say 50 fuel duty cycle or 6psi boost it starts spraying 420cc's, as opposed to ramping up with fuel / boost curve?