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Power Strokes
6.4 Aftermarket
Feedback on Boost pressure
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[QUOTE="Dzchey21, post: 107060, member: 63"] If you want my honest opinion... your making way over 25 psi of boost... Sounds like the factory map sensor might have taken a dump on you, the computer WILL create a value if it has to. before you go any further verfiy with a boost gauge or oil pressure guage or some sort of mechanical gauge that you are only seeing 25 psi of boost. To a point thats probably true. The reason for it i believe is because we were OVER estimating on hard we were driving stock turbos. Turns out at 55 psi of boost the turbos are turning some decent pressure ratios and might not actually be out that far out of the map... That being said a truck that can still maintain 55 psi of boost with 70psi absolute drive pressure will make more power than a truck with 55psi of boost and 80psi of drive. The problem is being able to gate the drive pressure and still maintain prior boost levels. [/QUOTE]
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