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Old 02-07-2018, 08:14 PM   #5
EivlEvo
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Join Date: Sep 2012
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The whatever color tops (orange/red?) off of the 850 on my 15G at 15psi with TLAO chips have no issue keeping up.

This post is relevant for this discussion on 15psi is 15psi across turbos, which is incorrect obv.

The TLDR is PSI is a measure of force per SQUARE inch on the intake manifold. CFM is a volume of CUBIC air the turbo moves.
https://www.rx7club.com/3rd-gen-arch...me-psi-645551/
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