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stock sizes of MAF and TB

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Old 07-04-2007 | 01:12 PM
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Default stock sizes of MAF and TB
i have a 2002 z28 and was wondering what the stock sizes of those are? thanks
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Old 07-04-2007 | 01:43 PM
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I read somewhere on here that the maf is around 72mm and I think the TB is 75mm but don't quote me on that!
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Old 07-04-2007 | 01:50 PM
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I believe they both are the same, 72mm.
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Old 07-04-2007 | 02:31 PM
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Throttle Body is 75mm.
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Old 07-04-2007 | 03:18 PM
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Moving to Newbie Tech....
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Old 07-04-2007 | 03:33 PM
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their both 75mm on a ls1
Last edited by staringback05; 07-04-2007 at 07:16 PM.
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Old 07-04-2007 | 08:42 PM
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75mm on both
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Old 07-05-2007 | 10:26 AM
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Answered my question as well
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Old 07-05-2007 | 12:50 PM
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Default is this the outside diameter?
Is this the outside diameter on the TB and MAP?
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Old 07-05-2007 | 04:29 PM
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its then entrance
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Old 07-05-2007 | 06:57 PM
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Originally Posted by staringback05
its then entrance
Not exactly. The entrance, or outside diameter of the TB is 4", then tapers down to 75mm (~3"). The MAF should stay consistent throughout, with little or no change in size.
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Old 07-05-2007 | 07:25 PM
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MAF tapers just a little, the t/b is 75mm at the blade
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Old 07-05-2007 | 07:25 PM
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guess i should have made that clearer, now that i read it...it could have meant anything
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Old 07-05-2007 | 07:26 PM
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its ok jacob, i knew what you meant by it
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