Place a plug on the line on the intake pipe meant for the BOV recirculator tube. I've heard an empty flim cansiter works.

TotalEclipse112 said:

Place a plug on the line on the intake pipe meant for the BOV recirculator tube. I've heard an empty flim cansiter works.

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where is the recirculator tube? i didn't put the intake on...

wait so take the tube that goes back into the intake from the bov and cram the film container on it and then let it hang or should i try taping it somewhere? is there anything erlse that i would need to do to it?

Just plug it up so that no air get into it. Also make sure that whatever you put in it dosen't get sucked into it. Like I said I'm pretty sure a film conatiner will fit around it on the outside.

my98GST said:

where is the recirculator tube? i didn't put the intake on...

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here's pic.

MISSION COMPLETE! holy hell guys its so much louder but yeah it does make the car run a whole lot worse.


my question is..... how can i vent my bov to the atmosphere and make it still run like its being recirulated?

MAF translator, do some searching.

my98GST said:

MISSION COMPLETE! holy hell guys its so much louder but yeah it does make the car run a whole lot worse.


my question is..... how can i vent my bov to the atmosphere and make it still run like its being recirulated?

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Super duper mighty expensive way = Stand alone ECU, or other ECU computers from Greddy, AEM blah blah....note SAFC won't help you to vent, cause SAFC is just piggy-back.
price? $1000.00 at least. Not worth for just loud sound.

Lttle bit cheaper way=GM MAF and MAF translator.
Price? about $200-300 and you need to CUT your Upper Intercooler Pipe and put GM MAF there.

But I heard(yes, I just HEARD) with 1G bov, it might not work with above set-up to vent.
Not sure thou.

im not going to keep the 1g bov for very much longer. im going to go with the greddy type-s probably or the hks ssqv.

the main things that i noticed was it made it run richer and want to sputter out...

or is there another extremely loud bov that is recirculated? that still kinda sounds like the greddy type-s or the 1g

my98GST said:

or is there another extremely loud bov that is recirculated? that still kinda sounds like the greddy type-s or the 1g

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The most lousdest recirculated BOV is...Greddy Type S or Type R.

is there anything else that i could do to make it louder? I already have the intake and im about to add a fmic, would the hard ic. pipes make it louder?

wupz i got a little mouse happy before i asked my other question. What does the greddy type-r sound like? I've heard the RS and i don't like the way it sounds at all.

From what you describe...seems like you want a aftermarket BOV that makes a nice sound loud enough that even if you are recirculating you can hear the noise because you want everyone in the neighborhood to listen...I can give you my opinion and help you save some frustrating and money.

Heres a few BOVs, Greddy TypeS, HKS, Blitz. But in my opinion Greddy Type S is pretty popular on DSMs and is affordable...Cheaper than HKS or Blitz and if you find one used is cheaper just be careful and make sure it has no leak problems.

Next would be installation is very easy to install a BOV but to recirculate a BOV the Greddy Type S is really easy to do to because it has an inlet already where all you need to do is put a hose or use the stock one like in the picture above, unlike the Blitz is a bit complicated to recirculate and you would need some welding. HKS is good but not familiar with recirculating.

Next is sound of the BOV. I have a greddy type S and you can still hear the sound after every gear even when is recirculating, of course is not as loud as venting but still pretty good and it is a tiny bit louder with pipes. Besides you don't want it too loud it gets annoying after a while.
Don't spend too much time on deciding what kind of BOV is not like you gain HP.

I read somewhere that if you get a metal pipe made that you can attatch one end to the bov, and the other to the Inake pipe, that it will make it louder than being vented to atmosphere.

redhyena69 said:

Super duper mighty expensive way = Stand alone ECU, or other ECU computers from Greddy, AEM blah blah....note SAFC won't help you to vent, cause SAFC is just piggy-back.
price? $1000.00 at least. Not worth for just loud sound.

Lttle bit cheaper way=GM MAF and MAF translator.
Price? about $200-300 and you need to CUT your Upper Intercooler Pipe and put GM MAF there.

But I heard(yes, I just HEARD) with 1G bov, it might not work with above set-up to vent.
Not sure thou.

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Standalones by themselves don't let you vent.

The reason you can't vent is because of the position of your airflow metering system. It's before the bov. As a result, venting releases metered air, causing the rich condition.

Changing to a standalone does not solve this. Now, most standalones will allow you to run a speed-density setup, which *will* let you vent.

A MAFT/GM MAF combo will also let you vent, depending on how you set it up. There are a couple of advantages. It will outflow your stock MAF. It will retain the accuracy of a MAF system as opposed to speed density. Daily-drivability is much better than a speed-density system.

If you want to vent with a MAFT setup, you need to run it as blowthrough, with the MAF after the bov. GM MAFs are a hotwire system, as opposed to karmen-vortex, and as such can be run in a pressurized environment, whereas a karmen-vortex can't.

my98GST said:

wupz i got a little mouse happy before i asked my other question. What does the greddy type-r sound like? I've heard the RS and i don't like the way it sounds at all.

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You know what you can do if you still want the sound, get a knock off hks bov. Make sure it doesn't leak at idle and you will be fine not recirculating.

so has anyone heard the greddy type-r?


I may eventually get a GM MAF so i can vent....After listening to the bov vent to the atmosphere and then hearing the bov with it recirculating its almost as if you can barely hear the recirulating bov...

DSMcrazy3 said:

I read somewhere that if you get a metal pipe made that you can attatch one end to the bov, and the other to the Inake pipe, that it will make it louder than being vented to atmosphere.

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anyone else heard this theory?

i have this done on mine and its pretty damn loud. i just went to home depot/lowes and bougt a sink j-pipe. my crushed 1g is really loud. i was kinda cool at first but now its starting to get old

i1nk do you have aol or aim? if so please im me at HKSwrx420 so we can talk about your bov set up.

Check this out, you can use it for what you want it for and not have to dish out a ton of money, that is of course if this is all you want and will not do future upgrades in the future, if you plan on turbo and fmic and such I would recommend the GM Maf, but to satisfy your need for noise now, and relatively EASY try this: http://www.gofastbits.com.au/index.php?parentid=products&option=products&sub_option=bovs&sub_sub_option=hybrid

Yeah I thought that maybe there was a way to re-circulate the Blitz but I guess not..I guess I am just going to have to sell it and buy a stock 1G...I also think it would be pretty interesting to make a metal pipe maybe 1" in diameter to re-circulate into the intake...Definitely would make the sound louder and look cooler...maybe I will do that for my FMIC piping setup...I really wish I could recirculate the Blitz tho

BGGSTin said:

Check this out, you can use it for what you want it for and not have to dish out a ton of money, that is of course if this is all you want and will not do future upgrades in the future, if you plan on turbo and fmic and such I would recommend the GM Maf, but to satisfy your need for noise now, and relatively EASY try this: http://www.gofastbits.com.au/index.php?parentid=products&option=products&sub_option=bovs&sub_sub_option=hybrid

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so let me get this straight.... You have different outlets on it correct? One makes it totally recirculating, the other one is 50/50 reciruclate and vent, adn hte other one is 100% vent?

With the 100% vent does it still make the car run like poo?