Stock BOV louder than EVO BOV?!?!?!

[rob1621]

SO i just got my stock EVO MR BOV in and installed it yesturday, my car is stock so i didnt expect it to be too much loder, but i drove it and nothin, almost no blow off at all?!?!?! this actualy pissed me off because the stock one was louder than this metal one.

Also i took off the recirc. tube just to see how it performed, and , its pretty fn loud. People say that your car will runn like sh*t if you dont recirculate, but i drove around for like 10 min and the car seemed to run fine, so idk what i should do.

And one more "also" umm i just ordered and intake w/ intake pipe, and i just wanted to know how that will help me hear the bov a lil louder?

 

[talon187]

the evo has a way stiffer spring. now do you mean your stock bov or a stock 1g bov? because if you mean yours well then you know its plastic and its grabage i put a tial bov on and it wasnt a heck of alot louder then my stock 1g. yes the noise it made was diffrent but not much louder i do notice it louder if im at full boost and im running 25psi

 

[BigSorn]

I put a fmic on, with a skyline GTR bov, but when I still had my 1g bov it did get alot louder recirced with just the hicp.

 

[rob1621]

yeah well im running everything stock on my 2g, its at stock psi, it was a stock bov, and stock intake. And its not even louder at all. queter if anything.

 

[tunethis]

Give it more time un-recirculated and it'll probably start acting up. Although, some people report no problems while doing this, the readings will be off. You are not producing enough air to get that MR bov to sound louder recirculated.

 

[DSMsOwnYourV8]

If you really want to vent to the atmosphere. Get a 3" Gm maf + maft. Otherwise, recirculate it. I love my Hks SQV Bov vented to the atmosphere, but I have the 3" Gm Maf and Maft to support it.

 

[rob1621]

how much did you pay for your gm maf and maft? and is it just plug it in and you good to go? any tuning or anything? and cons to using that?


and would a metal recirc. tube help at all?

 

[DSMsOwnYourV8]

how much did you pay for your gm maf and maft? and is it just plug it in and you good to go? any tuning or anything? and cons to using that?


and would a metal recirc. tube help at all?

I paid $75 from the 3" gm maf because I got it used, and I paid $150 for the Maft, got that used as well. You have to modify your UICP to fit the Gm maf in it. The maft comes with two plugs, one plugs into the gm maf and the other one in the Ecu. You can do a mild tune with the maft, but it's better to have a wideband to tune it with. Some cons to the maft are a rough idle when it's cold, and some peeps say it's a hacked ass mod. However, if you plan on having your car at power levels of over 500whp, you will probably need it someday. IMO the turbo sounds way better without the 2g maf, and a good bov vented the atmosphere sounds sic. A lot of people would recommend spending your money elsewhere, though.

 

[Boostjunki84]

yea, spend that money elsewhere for now; but please recirculate your cbv.

 

[KPEclipse]

recirc that bov - as previously stated the spring is harder, so its not gonna release the way any stock 1g or 2g would...also for now you're gonna want the recirc, actually, its usually beneficial to recirc to keep the turbo spooled...

as for venting, if you really want to, i'd go with DSMLink or DSMchip. that way you don't have to go through the whole GM MAF and MAFt like I did, and with the two aforementioned ideas, you can get it setup for however you want the car. Although you may not know so yet, tuning is the single best thing for the car, and having the ECU adjusted for whatever is in the car si the best way to get it to run like stock, wether it's heavily modified or not.

To DSMLink or DSMchip you are going to need a socketed EPROM, and you'll want this later on down the line anyway.

 

[talon187]

first off if you look around you can get a maf sensor for 25$ i just sold one for 30 shipped on ebay. I have a maft and honnestly i hate it. if you have the money id look into a vpc or maf pro and go speed density its the better way to go. with just a maft its a pain to tune and im running a maft and safc2 i have the maft tuned for the bigger injectors and fine tune with the safc2 dont get me wrong it works alright ive also got wideband so i know if im lean rich or what. the reason i dont like the maft is this when the temp changes outside so does the tune. the reason for this from what i understand is that the maft only reads the amount of air coming. the stock maf reads how much air the pressure the temp and i think somthing else i mean if your good at tunning and dont mind tune almost everyday then go for it

 

[nefarious]

You mentioned that you were getting new intake piping...the hard piping will make the "sounds" of the turbo and bov more noticeable than the stock piping. You should be able to hear the turbo spool better and you might notice the bov a little more with hard piping as well.

 

[DSMsOwnYourV8]

You mentioned that you were getting new intake piping...the hard piping will make the "sounds" of the turbo and bov more noticeable than the stock piping. You should be able to hear the turbo spool better and you might notice the bov a little more with hard piping as well.

agreed. My buddy couldn't even hear his bov in his Evo until he upgraded his intake. Even better sounding is a filter connected to a pipe that goes straight to your turbo, but again, money might be spent better elsewhere. See I went with my gm maf/maft combo when I upgraded my fmic because I didn't want to have to do it later on when I plan on pushing 600 to the wheels.

 

[bacalhau16]

I had a buschur intake on my EVO and the stock BOV sounded great.

Anyway, blowing off into the atmosphere is dumb. Its entirely uncessary in your car, and you should just recircualte like your supposed to. If your car is running good without doing so, consider yourself lucky. But if it begins to stumble, or stall after you get off the gas...

 

[asd_gst]

SO i just got my stock EVO MR BOV in and installed it yesturday, my car is stock so i didnt expect it to be too much loder, but i drove it and nothin, almost no blow off at all?!?!?! this actualy pissed me off because the stock one was louder than this metal one.

Also i took off the recirc. tube just to see how it performed, and , its pretty fn loud. People say that your car will runn like sh*t if you dont recirculate, but i drove around for like 10 min and the car seemed to run fine, so idk what i should do.

And one more "also" umm i just ordered and intake w/ intake pipe, and i just wanted to know how that will help me hear the bov a lil louder?

yea it might run fine for now but in the long run it isnt good for your car unless you have a standalone engine management in it. with the car all stock, stock computer i would have it recirculated not vented to the atmosphere.

 

[RedTurboEclipse]

Recirculate your BOV. You don't want to be looked down upon in the DSM community now would you?

Once you get a filter and intake pipe, and increase the boost it should be more audible.

 

[97spyderman]

I put a tiAl bov on my 99 gst and it wouldn't run worth a crap uncirculated. Now I was also unedumacated then about dsms but so what...

 

[talon187]

if your going to vent you need to run some setup thats speed density a standalone or a maft and in my pervious satementa maft its the best way to go. also when you run the right setup the bov will be even louder.

 

[gfrnk69]

Are there any other benefits of going with a gm maf and maft besides being able to vent properly?

-Frank

 

[talon187]

yes if you have bigger then stock injector you can tune them in with a maft. but like i said before tuning with just the maft is a pain in the ass and you'll never get a perfect tune. it would take forever as well. to come close you would also need a wideband

 

[drdouglas]

FYI on the issue of open bov's with the stock MAF, for some reason everytime I tried this with an aftermarket bov, my check engine light came on with the TPS code. Pretty weird. When I recirculated it the light went away.

 

[lgoss5127]

if you dont recirculate it it will end up running like crap eventually. thats what happened to mine cause i thought it wouldnt do anything either

 

[Hideki]

Remove your factory intake pipe and take a peek... You'll see why you can't hear your BOV When you've installed your aftermarket pipe you'll hear it loud and clear

 

[rob1621]

alright well when i ran in uncirculated, it didnt necessarly run bad, just it would stall if i was coasting or at astop other than that it ran fine. I did reconnect it though. Also the intake pipe and filter should be here anyday so i will update with that.

 

[asian4g63]

The intake will make it sound alittle louder, but like everyone say, just get a MAF-T and 3inch GM mas, and than you will really hear it. I have a Greddy type S with the Maf-T and gm mas, man it's LOUD. Plus you can tune your car better with the MAF-T. Good luck on the BOV thing.