Can anyone offer me any incite on what an acceptable minimum pulse width would be. I'm currently at 15 psi with 80# injs. I just recently realized I don't have enough fuel pressure to achieve less then 85%dc at wot so I'm going to have to increase fuel pressure and redo my VE tables. I have yet to increase my pressure and start redoing my VE learns because I'm unsure if I should invest in a VAFPR first. My engine idles perfectly smooth at about 12-12.5:1 AFR in openloop. Once it goes closed loop I begin to have issues with stalling. This was much much worse before I greatly reduced my PROP gains tables. Adjusting them has helped a ton. I've noticed when it idles closed loop it trys to lean out the AFR to 14.7:1 the PW drops to .9 and it almost stalls and catchs it self and AFR drops to 12:1 then on its way back up to 14.7:1 it almost stalls or stalls. I know I could just run an openloop idle but I'm currently trying to get everything squared away so that I can get through my states emissions testing. I've read there are things that can be done with the tune to work around this issue. But if I can save myself headaches by adding a VAFPR I will likely purchase one since in the future I plan on having to increase my pressure even more when I add a larger cam, better intake, and possibly better heads.
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