Slow spool posted by Amansh1 on July 27, 2018 at 06:25 PM
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spool up characteristics. It would also result in the other turbo having to "work harder" (essentially make more boost) to make up for the boost deficit on the leaky manifold side. The turbo making more boost is going to be pumping a hotter charge (more compression of air means more heat). I don't know how much that would affect the temps in the engine, but it would seem reasonable that that side would see higher temps due to the hotter charge air. I'm not sure about the spike and subsequent dropping off of boost. But since our engines are cross fed and rely on one turbo feeding the other, I could see how this could cause an initial spike and then a boost drop (like I said, I'm not sure about this).