So here's what your gonna need:
1: BOV/BPV
2: Duct Tape
3: Drill (bits of course)
4: Duck Caller
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Step One: Take apart the duck caller so that you can safely drill the housing without damaging the reed piece. Yes were gonna be drilling this baby out to avoid compressor surge.
![Image]()
Step Two: Start drilling, I did three evenly spaced holes with a 11/32 bit, or something larger. Drill at an angle so the air has a semi-direct path. Remember: performance is key. (clean out all of the shavings, you dont want wood in your engine)
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Step Three: Get your duct tape, and rip off a strip. Rip it again so you have about 3/4 on one strip and 1/4 on the other.
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Now wrap on your performance duck caller to your BOV/BPV with the larger strip. Avoid your anti-surge baffles! Dont wrap all the way, stop halfway.
![Image]()
Now take your smaller strip and use it perpendicular to the other strip to help hold it on, again avoid the anti-surge baffles. Then finish the wrapping and add another on top to hold on the perpendicular ones.
![Image]()
Install and go have some fun!
1: BOV/BPV
2: Duct Tape
3: Drill (bits of course)
4: Duck Caller
Step One: Take apart the duck caller so that you can safely drill the housing without damaging the reed piece. Yes were gonna be drilling this baby out to avoid compressor surge.
Step Two: Start drilling, I did three evenly spaced holes with a 11/32 bit, or something larger. Drill at an angle so the air has a semi-direct path. Remember: performance is key. (clean out all of the shavings, you dont want wood in your engine)
Step Three: Get your duct tape, and rip off a strip. Rip it again so you have about 3/4 on one strip and 1/4 on the other.
Now wrap on your performance duck caller to your BOV/BPV with the larger strip. Avoid your anti-surge baffles! Dont wrap all the way, stop halfway.
Now take your smaller strip and use it perpendicular to the other strip to help hold it on, again avoid the anti-surge baffles. Then finish the wrapping and add another on top to hold on the perpendicular ones.
Install and go have some fun!
