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Well take my car for example. Maybe this will give some more insight as to why i also think stock injects cant go over 8 psi safely. My car is at about 7 psi of boost on the Hahn kit. My FPR is screwed and running to rich, giving me about 120+ psi of fuel pressure at 7 psi of boost. HRC recomends about no more than 110 psi of fuel pressure for 8 pounds of boost. So you say, well i'm running too rich at 7 psi of boost with 120+ psi of fuel pressure? Right? Well here is this. At 7 boost and 120 psi of fuel, my A/F is about right on, NOT RICH!! I should be pretty rich with that kind of fuel pressures, but nope. Sometimes my boost will spike a little to 8 or 8.5 psi, and i dont feel the car move any more faster, it stays the same pull wise, but i hear and see the boost go up. Well you say i should have plenty of fuel with 120 psi at 8 psi of boost, but no more power is being made than at 7 psi..Interesting, isn't it? I feel, as some others do, that our STOCK injectors max out at around 110 psi of fuel pressure. I'm not talking about how much boost it maxes out at, but fuel pressure, as that is what is key here, not boost. Until i can get larger injects, i'm keeping my boost around 7 psi, maybe 8, but def no higher. I'd be willing to place a big bet that any higher than 8 psi of boost(110 fuel pressure) you will blow a motor due to fuel starvation. IMO, our stock engines are good up to 10 psi of boost(Hahn kit), BUT with proper fuel delivery.
 13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
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