Stock turbo
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redneck_cummins (03-23-2009)
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ok first i have herd a hx35 support 400hp, seocound call me when he hits 50psi again witha stock turbo so i can watch him pull compressor wheel fragments out of his intake pipes. a hx35 is worthless past 35psi and anything over is in the danger zone anyway. a stock headgasket shouldnt excede 45psi, a stock headgasket with studs can hit 60psi and o-ring with studs 85psi
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redneck_cummins (03-23-2009)
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Biggest miss conception of gauging a turbos ability is Boost Pressure , high numbers are bad on stock engines , you want more air flow and less pressure , your stock turbo is building pressure but its not alot of cool flowing air , when i went with the ATS intake and exhaust manifolds my boost pressure dropped tremendously , when i went with the s300 again my boost pressures dropped but its an entirely different truck , I went from a 60# gauge to a 35# gauge as im a single charger on stock head gasket and dont need to be pushing more than 35 psi to get the job done
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