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Old Sep 7, 2006 | 02:12 PM
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Question stock throttle body size

what mm is it ...and how many CFM would it be ...
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Old Sep 7, 2006 | 02:21 PM
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A stock throttle body is listed as a 75mm throttle body. The lip in front of the blade (which you remove while porting) only makes it around a 72.5mm throttle body.
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Old Sep 7, 2006 | 02:33 PM
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any idea what cfm that relates to ?????
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Old Sep 7, 2006 | 03:52 PM
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Ttt....anyone???
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Old Sep 7, 2006 | 04:19 PM
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I have no idea. I even searched and every time somebody started a thread asking the same question, there were no replies.
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Old Sep 7, 2006 | 04:43 PM
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The stock 75mm throttle body flows at 798cfm's, a ported 75mm runs 922cfm's.

Last edited by 1slowls1; Sep 7, 2006 at 04:49 PM.
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Old Sep 7, 2006 | 07:09 PM
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Originally Posted by 1slowls1
The stock 75mm throttle body flows at 798cfm's, a ported 75mm runs 922cfm's.
Thanks alot for the info----not a math major..
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Old Sep 7, 2006 | 07:12 PM
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welcome
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Old Sep 7, 2006 | 07:18 PM
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Question

Originally Posted by 1slowls1
welcome
what muffler are you running...atp ???
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Old Sep 7, 2006 | 07:30 PM
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I dont even know if thats the name of the muffler could be A.P.T. it was off my buddys t-type I needed one to quite it down a bit to pass inspection, so its somewhat legal.

the muffler is this tiny 14"long just fit perfect its before the rear end where the loudmouth bullet would have been.
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Old Sep 7, 2006 | 08:43 PM
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INTERESTING.............'somewhat legal'....
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Old Sep 8, 2006 | 11:58 AM
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well the place where I got my inspection sticker is a friend of mine and he said just throw a muffler on there so its visually there and somewhat legal by quieting it down a bit. But I personally dont think it made much of a difference, but atleast its there and I have a sticker.
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