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Need instructions on crushing a 1g BOV

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jrpmp69

15+ Year Contributor
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Nov 8, 2003
Las Vegas, Nevada
I have a 98 :dsm: eclipse GST with a 1g Blow off Valve that i would like to crush for more boost. Any suggestions on where i might find these instruction please let me know.
 
Attach a vacuum pump to the nipple, and see where it opens. Uncrushed, it will usually open around 15 in-Hg of vacuum.

You want to put it in a vise, and squish it VERY slowly, using the vacuum pump as a reference. In the end, you want it to open around 18 in-Hg of vacuum.

If you don't have a vacuum pump, you can't be as accurate, but you can just crush it a few millimeters.
 
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