Are there any negatives with venting the stock BOV to the atmosphere?

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01-31-05, 01:08 PM

#26

RotorMotor

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Quote:

Originally Posted by jeremyb

Just tape a duck calling mouthpiece to the outlet of the valve

thats like an alarm clock, woo wooooooooo.... the whistles go woooooo (being from oakland is embarassing).

anyway, yeah i had it vented to the atmosphere for a few weeks. i didnt get any oil residue, but i got so sick of the sound i had to cap it off. id pick up my friends and they would continually keep asking what was broken on my car... basically i found it fun for a day or 2. youll get over it really fast. as a result, ive got a greddy type S on my 20b (still havent gotten around to getting it in the car)... but im routing a hose back to one of the intake filters to quiet it down. just leave it be... thats my 2 cents

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01-31-05, 01:46 PM

#27

jimlab

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Quote:

Originally Posted by ludeowner

On a MAF system like say an Eclipse GST putting on a BOV would cuase problems because the air is metered and the proper amount of fuel is added. The BOV on a MAF equipped car will mess with the air metering process.

Not if it's connected back into the intake system on the low pressure side of the turbo, but after the MAF sensor. The MKIV Supra is configured this way.

Quote:

Originally Posted by DaleClark

Yeah, the stock BOV is LOUD. I tried mine open-air vented just to see what it was like. It's a little obnoxious around town, but on the freeway it gets REAL old. You get a continual blow-off while cruising.

You shouldn't be hearing the BOV while cruising. But level with me... is your dislike of the BOV noise just because of the rash of squeaky/sneezy BOVs that flooded the market about the same time as the release of the Fast and the Furious and you don't want to be lumped in with the ricers?

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01-31-05, 02:37 PM

#28

mad_7tist

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i would think that is the crv. /\

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01-31-05, 04:11 PM

#29

jimlab

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Quote:

Originally Posted by mad_7tist

i would think that is the crv. /\

Good point. At the point at which my valves were vented to outside air, both were serving duty as BOVs because I was non-sequential, so I never heard them unless I was making boost.

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01-31-05, 05:24 PM

#30

dgeesaman

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Quote:

Originally Posted by WaLieN

Haha, you guys don't like the sound of the blow off valve? Oh, and for the rubber nipple, what size should I get (3/4" iirc)?

<replying to an old post, I know>

I was just thinking that vented BOVs remind me of making a fart noise with your hand in your armpit. We all did it for a couple of hours one day as kids, but at some point you realize that doing it in public doesn't impress people.

Dave