My job for the night didn't show, so I did the ol' dining room table rebuild on the better of my 2 deltagates and plan to try it tomorrow. The delta gate diaphragm has a much larger surface area and I think that will drop the boost a bunch even with similar spring rates. Oh, and I noticed they use a positive seal on the valve stem and even go so far as to have o rings on bolts in that area to seal it good. WHICH means, I have to figure out how to remove the epoxy I just put in that bleeder hole in the rjc valve.
Turbobob, I plan to send you my chip for a reburn. I never dreamed that I would need this much more fuel after one mod. Its everything I can do (+14% fuel) to keep the o2s at 720 at the top of the run. I verified today that fuel PSI isnt dropping, the snap on digital transducer shows a couple pound fluctuation through the run but not falling off at all. o2s start at the mid 800s and falls through the whole run. I know its no wideband reading but it could obviously benefit from a new calibration. When it was at +6% fuel it would end up in the 600s, so its responding to the adjustments. Also need to lean out the idle.
Its a curious thing to me, that the extender setup will keep the fueling consistent regardless of boost (o2s will end up at 720 whether its 17 psi or 23) but it didnt compensate for the extra air moved by the new mods. I've gotten lost in all of Bruce's old posts about VE tables and rpm/load stuff so I assume it has something to do with that voodoo. Either way, I will probably ship it out on the 29th or so, car can be down for a while during that time. Suppose I should PM you or something.