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GT2EvoGuy GT2EvoGuy is offline
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Join Date: Jun 2008
Location: Connecticut
Posts: 121
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Thanks Boostfix that is an excellent thread! Hmm so he went to a 76mm custom TB on his carrera manifold and measured a negligible pressure drop. Seems like that TB would be adequate for nearly any 930 motor. I have a good lathe and milling machine at home, but the FVD bored TB was pretty cheap so I didnt feel it was worth the bother. If that 2mm increase gains me anything, I can always bore it out even further on my own, provided there is sufficient meat left on the walls of the TB to do so. Or I could always make one completely from scratch like Jim2 did but thats a pretty time consuming proposition!

Last edited by GT2EvoGuy; 08-03-2008 at 07:58 PM..
Old 08-03-2008, 07:51 PM
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