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Old 06-11-2003, 11:06 PM   #1
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Default Relationship between power and air intake tube size

Does anyone know what the effects of different sizes of intake tubes do to our engines? I know that if you go too small you lose power, but what happens if you go too large? If anyone knows of any formulas for this, that would be great.
I am just curious as to what the effects are on our engine, and how to find the "perfect" diameter, if there even is such a thing.
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Old 06-11-2003, 11:22 PM   #2
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You cant go to big because you car will only take as much air as it can handle. On the other hand you can go to small.
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Old 06-12-2003, 01:04 AM   #3
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It would depend if you were channeling air into your system or not. If its just setting in your engine compartment then it doesnt matter but a 3 inch works well and fits directly to the TB. If you are going to being doing some ram air the 3 inch will get you more hp at lower speeds and something such as a 4in will help at highway speeds more.
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