LT1-LT4 Modifications 1993-97 Gen II Small Block V8

opti vaccum lines??

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Old 02-11-2008, 03:28 PM
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Default opti vaccum lines??

does anyone have any pics or detailed desc of how to hook up the vaccuum lines on the opti i did the conversion to a vented opti on my 94 z and am not sure where these lines go??
Old 02-11-2008, 04:36 PM
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http://shbox.com/ci/opti_vent.jpg

http://shbox.com/1/opti_vacuum_harness.jpg

http://shbox.com/1/opti_vacuum_hose.jpg

http://shbox.com/1/opti_vacuum_conn.jpg

Those are what I went by.
Old 02-11-2008, 07:21 PM
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ok thanks
Old 02-11-2008, 07:58 PM
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just did it the other day actually. one line runs to the driver side of the intake (vacuum) and the other plugs into the bottom of your intake elbow. it was very simple for me
Old 03-21-2008, 10:37 AM
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anyone else have any pics i converted mine and the vaccum lines are diff on my car since its a 94 those pics are helpful but my pcv is where the opti vaccum line is supposed tto go anyone?
Old 03-21-2008, 10:44 AM
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I used the little EGR nipple piece right above the PCV valve since I deleted EGR. If you have EGR then you need a "T" fitting to split it to the EGR and the opti.
Old 03-21-2008, 11:02 AM
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ok which line did you run to that one the one that comes off the cap or the smaller one in the dist part?
Old 03-21-2008, 11:07 AM
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You want the one in the cap routed to the elbow and the other hose to the vacuum side.
Old 03-21-2008, 11:12 AM
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those diagrams show the one in the cap going to the vaccum on the intake and the one in the opti going to the elbow
Old 03-21-2008, 11:13 AM
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I may have had it backwards? I didn't even check the links.
Old 03-21-2008, 11:15 AM
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http://shbox.com/1/opti_vacuum_harness.jpg


this one shows the one in the cap going to theintake manifold im just trying to figure this out cuz the msd opti i put on it is making a weird noise i didnt know if it was cuz i didnt have the vaccuum lines hooked up right if thats not it it has to come back off damn it




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