1G BOV Resurculation

[Booooostin89]

hey im new to all this just got a 90 talon tsi and wanted to know if it was bad if i took the recirculation pipe off the stock bov that goes into the intake so i could here the sound of it would this ruin anything or hurt anything please let me know

 

[rlacasse1]

You'll run rich as hell. But it won't necessarily kill anything.

 

[wishin4nX]

1. Use the search button.

2. Yes it makes your car run rich in between shifts. Leave it, if anything just open up your airbox. It should help with the sound

 

[gusu]

The blow off valve on most stock cars are actually bypass valves just like all DSMs. If you take it off the air isn't measured properly so you would need a new bov, GM maf, and something like mad translator or ECM link v3. ECM link also supports speed density which requires no MAF if you wantto go that route. Either way you are going to spend A LOT of money for the blow off sound.

 

[91laser07]

look up blow off valves mythbusted on youtube it will spike rich but thats bout it and ive done it nothing bad has happened yet and sounds amazing

 

[ceth17]

Late to the cake. But yeah you will run rich. And everybody who helped him has a 90 talon thTs pretty cool

 

[misterjose]

yes you are going to spend a lot of money and hitting your head trying to tune the so called plug and play MAF Translator. yes it does plug directly to your stock mas adapter and to the gm mas, but since you have a 90 im assuming you'll have a 90 cas also which doesn't have the black wire depicted on the how to install a maft easy on the tech.
if i were you i would just leave it. for me i already have the parts everything is now in place i just need to get some more info on where the white wire from the maft goes to a 90 cas. and the tuning of it. thats about it .

 

[Booooostin89]

thanks guys im going to take the Recirculation pipe off and see how it goes i will put it back on if it doesn't seem like a good idea

 

[agentorange313]

thanks guys im going to take the Recirculation pipe off and see how it goes i will put it back on if it doesn't seem like a good idea

sorry man its just a bad idea, if you do not have supporting mods for that change in your system. Your car can not calculated a correct fuel/air mixture. Its a bad idea no matter what.

 

[91laser07]

if you do take it off make sure you plug the hole on the intake go to a hardware store and buy a rubber plug for like a $1

 

[master jared]

ya i did that my car wouldnt run over 5 psi of boost and it would hit fuel cut i found out that you have to get a maft translator first then you can get it

 

[9!'clipseDOHC]

thanks guys im going to take the Recirculation pipe off and see how it goes i will put it back on if it doesn't seem like a good idea

Glad you listen.

You ask a question and everyone says it will hurt your performance (and possibly even your drivability) and then you do it anyways. Why even ask?

 

[icepikbiker]

I took off my recurc tub and the only issues I have found is I hit fuel cut at about 5k rpms and I can smell the fuel in the exhaust. (RICH). Other then that I get full boost and the whoosh. Lol . I have a GM maf and translator just don't have the pipping to tap it into my stock intake system.
Since you are gonna go ahead and do it make sure you have extra spark plugs for when you clog the ones in it.

 

[Absit]

On the plus side it looks like there will be a few shells running around when these guys do something else against everyone's advice.

 

[misterjose]

hahaha. when he parts it out we have more parts

 

[jed344]

if you want it to be louder just buy a ebay intake pipe. i have a 1g bov on my 2g and with a intake on it its just as loud as other cars with them venting.

 

[4g63jojo]

thanks guys im going to take the Recirculation pipe off and see how it goes i will put it back on if it doesn't seem like a good idea

it is not a good idea at all so dont do it. The air coming out of the blow off valve has already gone through the MAF and has been accounted for, when you take the recirc pipe off your loosing air your engine thinks its gonna get therefore making your a/f ratio very very rich when the BOV opens. And its not just a little rich either, the BOV lets out alot of air, its not gonna be just a little rich its gonna be very very Rich when it opens. The biggest concern with doing this that im suprised no one has mentioned yet is that a very rich A/F ratio can cause damage to your engine, the extra fuel inside the cylinder can actually wash the oil off the cylinder wall, theres a term for it but i forget it at this moment, but yea no oil anywhere inside the engine is BAD, especially on the cylinder wall, this will cause your compression ring to prematurely fail and you will lose compression in turn losing power then eventually you will need a rebiuld. Also this will foul your sparkplugs 50million times quicker so expect to get a new set very soon. But hey if you wanna risk that just for a louder blow off sound be my guess its your car, but that seems like a very "rice" idea to me.

 

[Tanro]

Look... Its just gonna make you run rich. Nuff said. My 2g doesn't have a recirc fitting on the FP pipe that came with it, its running richer than a stuck pig, and miss firing during shifts at boost.

 

[1GRedRocket]

my car came with a blitz BOV with no supporting mods. runs rich. it sucks. when the weather warms up i will be installing the gm maf/translator

 

[Booooostin89]

ok so i buy GM MAF Translator then attach it then take off the resicutlation pipe and have it running as blow through can someone explain exactly what i have to do once i buy it to make sure i can safely Vent to atmosphere ?

 

[4g63jojo]

ok so i buy GM MAF Translator then attach it then take off the resicutlation pipe and have it running as blow through can someone explain exactly what i have to do once i buy it to make sure i can safely Vent to atmosphere ?

you can safely run vent to atmosphere with the GM MAF and translator, the only thing you have to do is make sure your BOV is located before the MAF, (usually you want to put MAF in between throttle body and BOV). This way the air being released from the BOV is air that has not been taken into consideration via the MAF sensor and in turn allowing your A/F mixture to be the same.

 

[Booooostin89]

is there a pic of this anywhere or video how the hell do you attach it to a pipe i dont get it ?

 

[9!'clipseDOHC]

is there a pic of this anywhere or video how the hell do you attach it to a pipe i dont get it ?

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You cut your pipe and attach the GM MAS with two couplers and 4 clamps.

Here is a tech article on the subject: http://www.dsmtuners.com/forums/articles-intake-exhaust/137688-diy-intake-vpc-blow-thru-set-up.html

Hope this helps!

 

[Booooostin89]

thanks man that really helped actually how much did you end up spending for all that...the GM MAF. the translator the cuplings?

 

[JasonStern]

I took off my recurc tub and the only issues I have found is I hit fuel cut at about 5k rpms

from what you've described, it sounds like you are running more boost than your bypass valve is set up to handle. the recirculation pipe shouldn't cause fuel cut at high RPMs as the valve shouldn't be opening under WOT unless it's seeing excessive pressure at the bypass valve's boost/vacuum source...