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<p>[QUOTE=&quot;Shawn2130, post: 10425783, member: 170705&quot;]If I remember right, the low compression packs are around 15:1.</p><p><br /></p><p>The 2 Pete’s we have with the 3406b’s are 16:1 and 16.7:1.</p><p><br /></p><p>So when someone re tunes the computer, turn off the IVA’s, the cylinders are now taking the full force of 18 to 1 compression along with the boost pressures of 40 plus psi of the two turbos or the single. </p><p><br /></p><p>I think my ACERT is pushing around 45-50 psi with the twins. The boost gauge says 60 but I’m not sure if that’s accurate.[/QUOTE]</p><p><br /></p>

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