I have heard it is posible to fool the computer into increasing the boost pressures by simple changing a sensor. Has anyone done this and if so where do you get the part/s?? Also any downside to this?
High boost does not equal power. Power comes from fuel. Add boost accordingly to more fuel to complete combustion, and reduce EGT's. Excessive boost will cause the BOOM factor to loom ever closer. 12 psig boost limited by ECM. Read up, and learn more BEFORE attempting or risk compromising your engine.
If you really, really, really want more boost, convert to 18:1 compression. Reduces the BOOM factor somewhat.
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