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Old 07-07-2013, 05:38 AM   #1
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Lancer Ralliart and a Atmospheric BOV

So i recently purchased a new lancer ralliart. The stock pressure release valve is a plastic recirculating BOV.

I heard that plastic ones leak at higher pressures. Im looking into replacing it with a Turbosmart BOV.

My question is, will an atmospheric BOV work on an engine that originally had a recirculating BOV. Also, if i were to replace the stock valve with an atmospheric BOV, what kind of air will my car be releasing, is it clean or is it considered a pollutant to the environment? Thank you so much

excuse the grammar mistake in the title. Thanks
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Last edited by sniperkirby; 07-07-2013 at 05:39 AM. Reason: additional info
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Old 07-07-2013, 10:15 AM   #2
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Technically yes, it will work. But if you're completely stock and not running any tune it's probably not a good idea to vent into the atmosphere. It will fool you're MAF sensor and mess up your A/F ratio causing you to run rich and performance will suffer
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Old 07-07-2013, 10:24 AM   #3
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Your car will run like shit because your MAF will be getting false readings. It's clean air as its just air that is going into your motor. The fuel doesn't get added until its injected into the cylinders.

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Old 07-07-2013, 04:27 PM   #4
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alright thanks alot, i just dont want to get pulled over by cops when i actually put on a atmospheric bov and get a ticket for environmental harm :P
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Old 07-07-2013, 04:35 PM   #5
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^Not too sure why you would still consider venting after the info Berz and myself have given you
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Old 07-07-2013, 04:48 PM   #6
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Don't due to the fact that ralliarts have SST, the atmospheric bov will make it run like shit if your car is stock, most evo ralliart owners run recirculating. and you will not gain any power from getting a bov on a stock car.
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Old 07-07-2013, 04:54 PM   #7
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Atmospheric BOVs are for ricers, duh.
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Old 07-07-2013, 05:05 PM   #8
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im planning on getting it tuned as well, apparently i can get better fuel economy out of it that way too.
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Old 07-08-2013, 03:29 AM   #9
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I hope you are keeping the stock by-pass / recirc valve on despite the tune. A blow-off valve will not yield any kind of fuel economy no matter what you do to it. Berz and bluejays already explained it so I won't repeat what they've already said.
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Old 08-12-2013, 12:36 PM   #10
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CEL and potential limp mode.
Dont do it.
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Old 08-12-2013, 12:51 PM   #11
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You can get aftermarket BOV's that have a recirc feature.

Something like a HKS SSQV with the re-circ adapter so you can plumb it back in.
You will only hurt the car doing this without the re-circ.

You will still get the sound (may be a bit muffled when compare to atmospheric release) but its still there.
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Old 08-12-2013, 04:32 PM   #12
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Guardian Angel Overboost Protection [GUARDIAN_ANGEL (0100-0003.3)] - $199.00CAD : Stratified Automotive Controls

This is a device designed by a local tuner in the mazdaspeed community, but will work on most turbo cars. Its primary function is to provide overboost protection. Secondary function is to allow you to run a push/pull style BPV/BOV in VTA mode with minimal issues.
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