"Programable" options for the CIS crowd

[evanwebb]

Word Greg. The control pressure regulator isn't magic, its just a fuel pressure regulator that happens to be thermoelectrically controlled, and happens to be regulating the control pressure, not the system pressure.

[kakarot]

It looks like that it would work. On audi/VW system anyways. They have very complicated fuel pressure regulator. Combining both warm up and pressure regulator. They use both intake vacuum, and heated plate to adjust the pressure slightly. While the main pressure regulator is in the A/F regulator it self.

That thing just allows small adjustment for the pressure. It might be enough to adjust the A/F ratio to get proper mix at proper rpm. It is probably easier that to try to calibrate the CIS. However CIS should be properly calibrated and springs used new to get optimal performance and use the pressure regulator to finite adjust the fuel curve.

I hate screwing with CIS I can just make then run properly, never getting any significant performance out of it.

A thing I tried to do is to make a new air box, the box on top of CIS going into the intake. And adding a spring and a screw to adjust the A/F mix. I abandoned that long ago.