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When does the BOV open?

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Old 12 Jan 2004, 03:57 pm
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Default When does the BOV open?

I am considering the Mopar BOV kit for my cruiser, but i have a question. Does the BOV make noise every time you let off the gas, or only if you are running under boost when you let off the gas?
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Old 12 Jan 2004, 04:09 pm
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I believe only when you let off the gas while running under boost. At least according to this thread:

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Old 12 Jan 2004, 04:22 pm
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When you are under boost, the stonger the boost the louded the phhsssss
03 Steel Blue Pearl Turbo, Stage 1, Mopar BOV, Magnaflow performance muffler, My Air Box mod., AMXpipe W/K&N filter, LED lighting,PT Tunning rear lowering springs & BGT Strut tower brace, Hankooks Ventus tires, Rage Motif 17 in. wheels. Tribal pinstrips by Palmer (who else), Color match paint by, Plugs and wires by,
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Old 12 Jan 2004, 05:45 pm
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The only thing is that we run boost practically all the time.
Patriot Blue 5-Spd, Stage I, Mopar BOV, BTG Intake, Custom 3\" Turbo-Back, Spring Mod, BTG Shock Tower Brace, Vogtland Springs, Koni Shocks, Eibach Sway Bars, Azev Type M 18x8.5 wheels, Ventus K104 tires, Projector Bi-Xenon Lights, Rear spoiler, Autometer Gauges, Illuminated sill plates, K&N Oil Filter, Mopar subwoofer. Mexico City. See pics:
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Old 12 Jan 2004, 08:03 pm
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Location: Huntington Beach, CA, USA.
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If you have the auto you won't notice so much. I kind of like it with my 5 speed though. If you are just accelerating lightly and really shift slowly you won't here it much with the 5 speed either.
'03 Inferno Red GT, 5 speed, STAGE 1, Mopar BOV, Plastic Intake, Modified Upper and Lower Airbox, Custom Airbox-to-turbo pipe, Borla dual exhaust, Maddog Short Shifter, Drilled/Slotter Rotors, Ceramic Pads, chrome wheels, chrome door spears, AMP chrome fuel door, PT Cruiser 3rd light diffuser, H&R Springs, Rear Sway Bar added, MGW chrome door lock pulls, Blane's hood struts, Custom license plate mount, some interior dress up stuff...more to come
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Old 12 Jan 2004, 08:04 pm
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Location: Rhode Island.
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Yeah, but sometimes when you are cruising, I pull some vaccuum, may 5-10 inches, when I let off there is no BOV action. If I tap the gas and boost even 2-3 PSI over then I get a proportional BOV response.

2003 GT Inferno Red,5-spd,Eibach Springs,Koni Sport Adjustables, Eibach front and rear Sway Bars, Mopar Stage 1,Mopar BOV,Custom 2.5\" Dual Tip Exhaust (Magnaflow),Hurst Short Throw Shifter, Pioneer DEH6500 Headunit, RF Punch 300 and 301 Amps,RF 12\" Sub and MB Quart Reference and Premium Speakers,Ronal RT 17x7.5\'s with Michelin Pilot Sport 225/45ZR17s, Koni Adjustible shocks, Keystone single scoop, GT Airraid Intake, Mopar Ground Effects
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Old 12 Jan 2004, 08:48 pm
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the bov will release every time you are under load and the throttle is released. The closing throttle plate blocks the path for the air/boost to enter the throttle body. This, in conjuction with a vacuum source, causes the bov to open. For an aftermarket bov. The mopar one is not an "actual" bov, it is a vent plate for the stock diverter valve.
My Cruiser is slow. I love the law.
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Old 13 Jan 2004, 12:29 am
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Location: austin, texas, USA.
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anyway you look at it, it still sounds cool
2003 Dream cruiser 2 #1434

mopar bov and k&n drop in filter ,billet shorty antenna, silencers removed, custom painted rear shelf that says\"Dream Cruiser II\"and maybe, doubtfully soon------stage 1
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Old 13 Jan 2004, 03:15 am
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You have to release the throttle during heavy acceleration. Letting up on it generally will not trigger the surge valve.

The sound is neat. Also educational: I wanted to get a better feel of how my engine runs (until I get to the guage pod).

It is not "Mopar BOV", it is "Mopar BOV Conversion Kit". The only change is that it vents the unused air rather than recycling it back into the input to the turbo. Not recycling that warmer intake air may or may not affect engine performance.

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