C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Question for Those with TPIS 58mm TB

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Old Aug 4, 2007 | 01:14 PM
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geezel's Avatar
geezel
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Burning Brakes
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From: Herriman UT
Default Question for Those with TPIS 58mm TB

There are two fittings on the pass. side of the TPIS TB - one for 3/8" and one for 1/2" hose. The stock TB only has one
fitting for hose from pass. side valve cover. On the TPIS TB does it matter which fitting I connect the hose to? I understand I need to cap off the unused fitting.
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Old Aug 4, 2007 | 03:40 PM
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staugur's Avatar
staugur
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From: port charlotte fl
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the top one(larger) is the scavenge from the passenger side valve cover.The lower is the vacuum line.
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