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quistion on greddy BOV

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TheRealist

15+ Year Contributor
464
3
Dec 12, 2005
Chula Vista, California
The type S, Can i put it on the way my stock one is set up? also what is this recirculation or whatever its called for or do?
 
you can put it on in the stock location you just have to drill holes that are a little further past on the outside of the stock holes.
 
Dragon TalonTsi said:
What, and you are a proven member, what Kind of crap is this? See, not everyone deserves this..... and he has like 200+ more posts than I do.... for shame....
Just because he is a proven member doesnt mean he dont know some stuff. Proven member doesnt mean he knows every little thing about dsm cars. He probaly has helped some people and is worthy of being a proven member.
 
TheRealist said:
The type S, Can i put it on the way my stock one is set up? also what is this recirculation or whatever its called for or do?
Recirculation is where the bov vents back into the intake and not into the atmosphere, to vent the bov propally to the atmosphere you have to have a Mass Air Flow Traslator, MAFT, there is a write up on how to do it.
heres the tech article
http://dsmtuners.com/forums/showthread.php?t=213196&highlight=venting+the+bov
 
Well, then if he had to have 25+ points to be a proven member, that is a lot of points. It is not like we have never seen GReddy parts, it is a big distributor or manufactuer of our DSM parts anyway. Well, I just think that it is a little strange. That is easy for you to say too, you are a proven member already. I have been bustin my butt everyday and learning through trial and error, and no luck. Plus when I do help people out they dont know how to give points either....
 
Dragon TalonTsi said:
Well, then if he had to have 25+ points to be a proven member, that is a lot of points. It is not like we have never seen GReddy parts, it is a big distributor or manufactuer of our DSM parts anyway. Well, I just think that it is a little strange. That is easy for you to say too, you are a proven member already. I have been bustin my butt everyday and learning through trial and error, and no luck. Plus when I do help people out they dont know how to give points either....
Well i was in the same boat before with people not giveing points and all you need is two people to give you pionts to become a proven member like around 12 points, but it has to come from somebody that has 25 points for it to even count for you.
Read this if you havent
http://dsmtuners.com/forums/showthread.php?t=231141
 
Yeah, exactly, people that I help are other noob's like me, and granted I am still learning, but I still am not afraid to try by trail and error. I dont have money to waste, but I will experience everything first hand. Well then, I dont understand how this whole thing works. You have to get 12 points from other members that have 25 points already, but the noob's that only have x amount of points, dont even count? What? WTF
 
mra4886 said:
you can put it on in the stock location you just have to drill holes that are a little further past on the outside of the stock holes.

That works for 1g's or 2g's with an UIP that's flanged for a 1g BOV (i.e. Dejon pipes). With a stock plastic UIP, an adapter is needed. With a Greddy adapter, it will bolt up. With a 2g-to-1g BOV adapter, yes, you need to drill holes for the Greddy to fit. My advice: purchase an upper intercooler pipe already flanged for a Greddy BOV; I recommend Dejonpowerhouse due to his wide variety of options, though there are some others that are quite reputable as well.

Recirculate your BOV. For the Type RS, a recirculation kit is required. If you choose not to recirculate the BOV back into the intake tract, you run the risk of running rich and affecting the performance of your car. Recirculate your BOV until you have the correct mods to do so properly.
 
See thats what im not getting, recirculating is doing what exactly? putting what whare ect... im sorry guys but i do need help on this subject. the stock BOV has just 1 tube going to the bov to the intake manifold, and the greddy has 2 nipples... please help people witch patiance. so recirculating is venting it to the atmospher?
 
Recirculating is when the BOV's purged air goes back into the intake tract via the large thick black tube that connects the BOV and the intake pipe.

The MAS "counts" the air going into the intake. The air goes through the turbo, to the throttle body. All good. Suddenly, the throttle plate slams shut (when you shift), which creates vacuum in the intake manifold. The vacuum signal is what causes the BOV to open and purge the excess pressure in front of the throttle plate back into the intake. This prevents the pressure wave from destroying the throttle plate and rushing back to the turbo and damaging the turbo.

Remember when I said the MAS "counts" the air? If you vent that air to the atmosphere, it's "lost". The ECU gets the signal from the MAS that X amount of air is coming in. It then uses it's fuel maps and tables to figure out how much fuel to inject into the engine. The ECU doesn't know whether you're venting your BOV or not, so it's always going to go by how much the MAS is telling it. When you vent to atmosphere, the ECU still thinks all that "lost" air is still going into the engine, and injects Y amount of fuel. Thus, you run rich.

If you recirculate, all that air that was already counted gets recycled in the system, letting the ECU be happy in how much fuel it injects. The only proper way to vent to the atmosphere is if the air is somehow counted AFTER the BOV. This is usually done with the GM MAF and MAF Translator set-up.

The second nipple on the Greddy is sometimes used to help assist the BOV diaphragm stay shut. It isn't necessary to use it. Most people don't. You can just cap it off.
 
Oi, the Ecu reads air comming into your engine, yes? Well it doesnt know any better it thinks that the bov is recirc there for the computer assumes the air is comming back, thus adding more fuel into the engine, well when you dont do that, the air that the computer thinks will be there, will instead go to the atmosphere. Then you mess up the A/F ratio a bit and your car runs a bit rich thus decreasing your power potential.

I hope I explained it.


Lol I think with both our explanations he should get it.
 
TheRealist said:
See thats what im not getting, recirculating is doing what exactly? putting what whare ect... im sorry guys but i do need help on this subject. the stock BOV has just 1 tube going to the bov to the intake manifold, and the greddy has 2 nipples... please help people witch patiance. so recirculating is venting it to the atmospher?
no recirculating it is back into the intake, venting to the atmosphere is difrent and for the two nipples on the greddy type s put the hose on the top nipple.
 
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