Can it, or do I have to buy a regulator?

I noticed on ws6.com that they dynoed 10 RWHP if a adjustable fuel pressure, how would I know what to set the pressure to if I bought one?

 

No you'll need an AFPR to adjust your fuel pressure. However on your car the 10rwhp you'll gain won't be for very long. but if you do buy one, you'll need to hook up a fuel pressure guage to your fuel rail to know exactly where you are setting it.

 

I did read that the computer changes once it realizes the pressure was changed. But if I were to have to car programed with PCMforless would I keep the gain?

 

The learning function of the computer would still be active in closed loop, so the same thing would happen with anyone's programming.

 

So the regulator is pointless, unless I set the pressure and run the car, then reset/reprogram the PCM?

 

I am not an expert on fuel pressure, but my understanding is that you really don't need any change to stock pressures unless you have changed something in the fuel delivery system (like larger injectors) and have other mods so that your engine is capable of appreciably higher a/f flow.

By virtue of the O2 sensors, the pcm will soon learn what pulsewidth to use to keep the a/f ratio at programmed levels.