Airflow Numbers - LS1TECH - Camaro and Firebird Forum Discussion



Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Airflow Numbers

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Old 10-01-2011, 05:58 PM   #1
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Default Airflow Numbers

I picked up a set of LS3 heads assembled patriot gold springs and that have been ported for $1300, here are the numbers. Were they worth it?
--------I----------E
200----189-------114
250----213-------139
300----241-------156
350----263-------176
400----287-------189
450----304-------201
500----319-------210
550----335-------218
600----347-------224
650----358-------226
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Old 10-02-2011, 11:59 AM   #2
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Looks good. Who ported them and flowed/boresize them? exhaust looks a little low IMO
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Old 10-02-2011, 03:18 PM   #3
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Looks good. Who ported them and flowed/boresize them? exhaust looks a little low IMO
OK but nothing special compared to some L92's out there. The exhaust in particular is pretty weak. Just don't over cam it and enjoy.
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Old 10-03-2011, 07:30 AM   #4
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Thanks guys, I asked the porter about the exhaust and was told that he did not "tube test" the exhaust because he did not know what size primary's that would be used in my car and when that was done the numbers will be higher
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Old 10-03-2011, 07:58 AM   #5
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Thanks guys, I asked the porter about the exhaust and was told that he did not "tube test" the exhaust because he did not know what size primary's that would be used in my car and when that was done the numbers will be higher
The exhaust will always show higher with a "tube" and the intake lower with a manifold attached.
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