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throttle body port?

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Old Oct 3, 2010 | 10:08 AM
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My2000Z28's Avatar
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Default throttle body port?

Is there any purpose at all to porting a throttle body while you still have the stock ls1 intake manifold?
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Old Oct 3, 2010 | 11:44 AM
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It cant hurt anything. Should get you better throttle responce if nothing else.
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Old Oct 4, 2010 | 02:38 AM
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Same gains as with an LS6 intake.
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Old Oct 4, 2010 | 02:54 PM
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There will be a slight power gain, and increased throttle response. Considering the price its well worth it.
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Old Oct 4, 2010 | 06:01 PM
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Every lil bit counts
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Old Oct 4, 2010 | 06:42 PM
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^^^^x2
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Old Oct 5, 2010 | 05:03 AM
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By what I seen back when I was testing the 98-00 cars gained the same amount as the 01-02 cars. 7hp was common.
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Old Oct 5, 2010 | 09:59 AM
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I don't know why people talk about "throttle response"
but you can see that there is a ridge right before the
blade seating circle and some sharp edges at the PCV
and IAC ports which will create turbulence you don't
need. And porting would also include ensuring the blade
can mechanically travel to dead center (bump-stop).
Of course making it do so, may involve some other
things like bending the gas pedal arm for adequate
cable draw.

Just be smart about it and don't hog into where the
blade seats. And if you decide to epoxy the ports,
be sure your IAC still has about a 3/8" bore to work
with or you may have some idle surge result (been
there).
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