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

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Old Jun 16, 2008 | 02:06 PM
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94m6Z28's Avatar
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From: Canada
Default Help??

ive got two questions. kinda simple i hope.

1) on the passenger side frame rail up front below the coolant over flow tank there is a little black tube shaped box thats mounted to the frame rail with what looks like a vac line running to it.

Question : can i move this box from where its located along the frame rail to the side of the frame rail so its on its side? what exactly is this box?



2) with a vented opti is it safe to let it see boost or is it vac only like the PVC system?
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Old Jun 16, 2008 | 07:48 PM
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Originally Posted by 94m6Z28
ive got two questions. kinda simple i hope.

1) on the passenger side frame rail up front below the coolant over flow tank there is a little black tube shaped box thats mounted to the frame rail with what looks like a vac line running to it.

Question : can i move this box from where its located along the frame rail to the side of the frame rail so its on its side? what exactly is this box?



2) with a vented opti is it safe to let it see boost or is it vac only like the PVC system?
1) NO idea heh

2) Good question heh I'm 90% sure you'd be just fine since lots run boost with newer/venter LTs. It's such a small line anyways.
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Old Jun 16, 2008 | 08:14 PM
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where can i find out what this thign does?? i need to be 100% sure that it wont wreck it if i move it and turn it 90*
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Old Jun 16, 2008 | 08:18 PM
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From: Decatur, TN (N-W of Athens)
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Originally Posted by 94m6Z28
where can i find out what this thign does?? i need to be 100% sure that it wont wreck it if i move it and turn it 90*
Take pictures and post them up for starters.


Seeing as I've been up for.... too long (10:30 am yesterday), I'm only firing on about 3 cylinders (out of 8). If you plan to run boost, you could get a mini vacuum line check valve. Much like how the PCV works (as you already mentioned). I don't know how the vented opti's work, but I thought it was just a straight vacuum line up to the elbow.
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