"How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves

Yeah I have found several of those. The 1 inch ones will fit snug since that flange is 1 and an 1\8 inch in size. The nipple on the inlet side is 1 inch I believe.
 
You know... Ive never heard my PFFFTTT or my whines for that matter. I've seen torque as high as 13psi boost. Not sure if thats total or per turbo.

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4DRHTRD said:
Added some part #'s and pictures of updated 1" silicone covers for intake tube.

BOV are officially VTA!  They sound a lot better in person than on a video. And thanks for the great find. Especially great for me since my company has an account at McMaster and they deliver to us. I'm not feeling the red though. I might try plasti dipping them black. Will update if and when I do.


Brad
2010 SHO with PP
MyCal LMS Stage 3
Sent from my iPhone
 
FracaSHO said:
4DRHTRD said:
Added some part #'s and pictures of updated 1" silicone covers for intake tube.

BOV are officially VTA!  They sound a lot better in person than on a video. And thanks for the great find. Especially great for me since my company has an account at McMaster and they deliver to us. I'm not feeling the red though. I might try plasti dipping them black. Will update if and when I do.


Brad
2010 SHO with PP
MyCal LMS Stage 3
Sent from my iPhone
I used them too, but I'm with you... what's up with the red... Do you think plastidip will take the heat?
 
I've been VTA for about a year now, but now that I'm tuned it sounds completely different. Sometimes its a ppsshhh sound but now its almost like a  whistle. Like in this video.
Unleashed Tuning's 2010 SHO Turbo BOV: http://youtu.be/v4Nz2MeLA1E

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+firm shift+boost
more to come.....
 
I could hear them with the Unleashed tune even when they were still tied in. 
 
glock-coma said:
I've been VTA for about a year now, but now that I'm tuned it sounds completely different. Sometimes its a ppsshhh sound but now its almost like a  whistle. Like in this video.
Unleashed Tuning's 2010 SHO Turbo BOV: http://youtu.be/v4Nz2MeLA1E

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+firm shift+boost
more to come.....

Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE hotpipes... hopefully by Wednesday.
 
BiGMaC said:
Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 
 
SwampRat said:
BiGMaC said:
Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 

The factory BoV set-up on the hotpipes has exactly twice the vent area (two vent holes for each BoV)... more opening size, same pressure and volume.. may be less whistle... dunno 'til i get my SHO back Tues evening and then get the tune loaded.
 
BiGMaC said:
SwampRat said:
BiGMaC said:
Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 

The factory BoV set-up on the hotpipes has exactly twice the vent area (two vent holes for each BoV)... more opening size, same pressure and volume.. may be less whistle... dunno 'til i get my SHO back Tues evening and then get the tune loaded.

Ok ya must have had an old fart brain fart moment when you said  " downpipes " earlier .  L O L
 
SwampRat said:
BiGMaC said:
SwampRat said:
BiGMaC said:
Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 

The factory BoV set-up on the hotpipes has exactly twice the vent area (two vent holes for each BoV)... more opening size, same pressure and volume.. may be less whistle... dunno 'til i get my SHO back Tues evening and then get the tune loaded.

Ok ya must have had an old fart brain fart moment when you said  " downpipes " earlier .  L O L
:homer:
 
Officially joined the VTA crew yesterday, took about 10min. Decided to go the ole' 1" rubber chair foot route for now.

Also, found a couple different ideas out there to 'enhance' the blow off noise. GoFastBits offers a trumpet that attaches to their blow-off valves (one for 13psi+ and one for 13 and under)...makes me wonder if something like this could be attached to the 1" port to make it louder or more 'whistley'.
5702.jpg


Anyone interested in something like this? or too ricey?
 
I was wondering if anyone offered anything like that to "enhance" the sound.  Granted, it's just noise fluff.  But you can barely hear it outside the car.
 
Dumb question, but I just want to make sure I'm doing this right (planning on knocking it out next weekend when I'm back in town). The rubber chair tips go on the returns and the (optional) K&N filters would go on the blow off valve's, correct?
 
Wilson said:
Dumb question, but I just want to make sure I'm doing this right (planning on knocking it out next weekend when I'm back in town). The rubber chair tips go on the returns and the (optional) K&N filters would go on the blow off valve's, correct?
you got it!


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Wilson said:
Dumb question, but I just want to make sure I'm doing this right (planning on knocking it out next weekend when I'm back in town). The rubber chair tips go on the returns and the (optional) K&N filters would go on the blow off valve's, correct?

I view capping the exit on the BoVs as optional.  I do have EBPF hotpipes.  So appearance was good and I get a more audible Pffft, no turbo whine even running LMS v8.  I do not have any evidence of oil, etc. under hood or or on/in the BoV outlet ports (polished bright aluminum)... I question restricting thes ports personally.  So I think optional for the filters.
BTW... Another reason I am researching utility of a catch can again before I install it.
 
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