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Gen 4 intake vacuum??

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Old Aug 15, 2025 | 10:27 AM
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JimLev
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Default Gen 4 intake vacuum??
I put my question in the Gen 3 forum by mistake.
It’s here
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Old Aug 21, 2025 | 10:08 PM
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Hasn’t any one ever read the intake manifold vacuum at idle on a Gen IV LS3 engine?
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Old Aug 22, 2025 | 02:54 AM
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My LSA with ls9 cam is 40-45 kpa
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Old Aug 22, 2025 | 08:18 AM
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Originally Posted by christianmoller
My LSA with ls9 cam is 40-45 kpa
Thanks, slightly different engine and cam than my stock LS3. Looks like I’ve got about 47 kpa.

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