C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Oct 7, 2012 | 12:16 PM
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If the heads had no exhaust cross over ports..........But the manifold still has the EGR.............would the EGR still pass the smog test in california if no one knew?...............
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Old Oct 7, 2012 | 01:08 PM
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more than likely it would pass the visual inspection.
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Old Oct 7, 2012 | 08:10 PM
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Cool.............is there any smog guys out there that would squeeze one as a test?.........or what would they do for testing. Wondering if I'm going to have to drill a hole in the ex port to make this head pass..........
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Old Oct 7, 2012 | 09:53 PM
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Good news................compressing the diaphragm still causes a vacuum leak, so it stumbles the engine as in testing. So.........maybe only if the tail pipe test showed too many nox numbers, they would look at the EGR......................
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Old Oct 10, 2012 | 12:56 AM
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The EGR lowers NOX. Yours has to be functional, with or without yer heads, or you'll fail the tail pipe test.

You may want to pay for a "sample" test, before your data gets sent to Sacramento DMV
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