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Supercharged 7.3
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[QUOTE="superpsd, post: 1034955, member: 15821"] I do have positive pressure at the turbo inlet. 1-2 psi until 2000rpm. Adding a smaller pulley will push more air creating more pressure. For every revolution of the blower it pushes 122 cubes of air or 2.1L. Turning 1000rpm more makes all the difference. I never said this was a compound setup. I stated from the start this is to improve response , drivability, reduce smoke, lower egts. A bypass will be needed when the turbo takes over. Also the whipple is the goal in the end. The Eaton flows a maximum of 865 cfm the whipple I plan to upgrade to has a maximum capability of 1900cfm. That is double. Why would I want to neck down and restrict the turbo further? A smaller snail will increase drive pressure and increase eggs in the higher operational range. Not to mention if I do opt to latter install bigger sticks the smaller scroll now becomes an restriction. With a positive displacement blower you can run a larger turbo and not have the negative effects such as smoke , eggs, turbo lag... [/QUOTE]
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