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Yeah... I'm running 4.35 psi on the stock injectors, ecu, and pump. With a t3/4. Anyway, if you are out of cash, and needed to run 7 psi on stock stuff, you could get a rising rate fuel pressure regulator. They are like $80, and then some dyno time to tune it. That is about the safe limit of a stock KA. After that, you'll need larger injectors. To run larger injectors, you need a JWT ecu. And don't take the companies word on what you need. You don't need a fuel rail untill a lot more boost. And with their fuel rail, you need to run different injectors. Which means you can't buy cheap used SR20DET injectors, which would normally just drop in.
You will really need to do some thinking about your goals and such.
-Jeff
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Whatup?
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