BOV Mounting..Loudness

[boostedgsx1997]

So I have the Type RFL blow off valve and I will be venting it. There are a lot of posts conserning how loud it is and so on. I was thinking, doesnt the location of the bov determine how loud it is. I mean if its like the stock one next to the TB or if you put it, next to the intercooler on the bottom. How big of a sound difference does it make depending on where you put the bov. What if you run short route 3" piping and you put it on the pipe that goes from the turbo to the intercooler. Just thinking and decided to see what you guys would think.

 

[JayRolla]

You want to install it on the UICP, not the lower. Closer to TB the better since if release the boost pressure way before it gets back to the turbo. And yes where ever you put it change how it sounds outside the car.

 

[rich3389]

Do you have a proper setup to vent to atmosphere?

 

[Boosted98gsx]

You want to install it on the UICP, not the lower. Closer to TB the better since if release the boost pressure way before it gets back to the turbo. And yes where ever you put it change how it sounds outside the car.

Actually it's better to put it on the cold side of the intercooler piping, because the air is denser and easier to ventilate than it would be on the hot side, giving you less of a chance to surge. That coupled with the air rushing towards the TB, you want the least amount of mass of air (for momentum) heading back to the turbo, more of a chance of not taking that 90* turn out the BOV, again causing surge.

 

[95blackGsTurbo]

Actually it's better to put it on the cold side of the intercooler piping, because the air is denser and easier to ventilate than it would be on the hot side, giving you less of a chance to surge. That coupled with the air rushing towards the TB, you want the least amount of mass of air (for momentum) heading back to the turbo, more of a chance of not taking that 90* turn out the BOV, again causing surge.

The cold side is the UICP. And I started a thread on this a year or so back and we all came to the conclusion that is possible the hot side, from turbo to IC, is the best place to install a BOV. Just look at a big single turbo Mustang or Camaro putting down over 1000hp. They swear by that location.

 

[boostedgsx1997]

The cold side is the UICP. And I started a thread on this a year or so back and we all came to the conclusion that is possible the hot side, from turbo to IC, is the best place to install a BOV. Just look at a big single turbo Mustang or Camaro putting down over 1000hp. They swear by that location.

So you are saying that its better to put it on the hot side, the pipe from the turbo to the intercooler then the cold one ( intercooler to TB). Hmmm, because everyone seems to be liking the stock location and I have it flanged on the hot side.

 

[Boosted98gsx]

The cold side is the UICP. And I started a thread on this a year or so back and we all came to the conclusion that is possible the hot side, from turbo to IC, is the best place to install a BOV. Just look at a big single turbo Mustang or Camaro putting down over 1000hp. They swear by that location.

The only reason the big hp guys prefer it on the hot side is to decrease the possibility of breaking TB shafts from the force of all that air hitting it when it shuts, and a turbo is MUCH cheaper to replace than an entire race engine after ingesting TB parts, so they can deal with a bit of surge. On a street driven car, keep the BOV on the cold side, and you're A OK. We're not flowing enough air mass to cause TB's to break and small journal bearing turbos are more likely to die from surge than large BB ones.

 

[Menacing talon]

That BOV is going to be loud as all hell no matter where you place it,trust me. I hope you have the proper setup to vent that

 

[dsmulla]

Here we go again........another BOV thread..........

 

[a_flint87]

I wouldnt recommend venting in the first place, unless you are running with a GM MAS. So the question still stands, do you have the proper setup to vent?

 

[talonalex92]

This thread had nothing to do with his setup.

 

[HIGHPSI4]

I have mine right off the compressor. If you have a custom set up why cool air that you will vent? In addition, if you have a short route IC pipe set-up you are limited to mounting locations. If you run a GM MAS then you want the BOV away from this sensor. I have had no problems running this set-up on a 2.3 and 2.4 engines. You can check out my gallery for pictures.

 

[white90gsx]

Haha...Im going to chime in here from what Ive been reading. The WHOLE point in not venting properly is because it causes brief periods on running rich and sometimes causes the car to stall so why cant an auto be vented? I ran my old 2g auto with a 1g bov vented 4 months with no problems. I even had my vent tube off of my 2g now ran just fine in fact the hesitation stop when I unhook it. By all means I am not telling anyone to improperly vent there bov but im asking the question why cant we vent with automatics

 

[Defiant]

If you aren't doing a blow-through, we won't discuss your venting plans here. For the reasons elucidated in dozens of venting threads before this.