S2000 Forced Induction S2000 Turbocharging and S2000 supercharging, for that extra kick.

Venting Stock SOS BPV?

Thread Tools
 
Old Jun 17, 2014 | 12:15 PM
  #11  
s2000Junky's Avatar
Community Organizer
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jun 2007
Posts: 31,070
Likes: 566
Default

Originally Posted by EK9MAX
S2000junky. Are you venting both to the atmosphere too?

And you say it's loud.... you mean the discharge? or just while cruising?
Yes venting both valves.

Both discharge and cruising are loud. Keep in mind the bigger the blower and the faster its spun, will produce more evac in these two scenarios, its not necessarily the type of BOV your using.

If you want it to be less noisy, then you have to recirc one or both valves, its up to you.
Reply
Old Jun 17, 2014 | 01:23 PM
  #12  
APoner's Avatar
Registered User
 
Joined: Dec 2010
Posts: 431
Likes: 4
Default

Im also running it like this. Im using a synapse BPV and the stock bosh valve. No flutter or issues. Both venting to atmosphere.
Reply
Old Jun 18, 2014 | 11:21 AM
  #13  
kryptonite's Avatar
Member
Spotter
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2011
Posts: 8,213
Likes: 277
From: Somerville, MA
Default

Any reason to vent to atmosphere over recirculate other than the sound?
Reply
Old Jun 18, 2014 | 03:38 PM
  #14  
EK9MAX's Avatar
Thread Starter
Registered User
 
Joined: Jul 2006
Posts: 877
Likes: 0
From: Calgary, Alberta
Default

Originally Posted by kryptonite
Any reason to vent to atmosphere over recirculate other than the sound?

Not venting hot air into the intake charge.

The main reason people do it is because the stock BPV doesn't vent enough air thus creating compressor surge. So people upgrade to bigger ones, or add additional ones.
Reply
Old Jun 18, 2014 | 04:26 PM
  #15  
kryptonite's Avatar
Member
Spotter
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2011
Posts: 8,213
Likes: 277
From: Somerville, MA
Default

Originally Posted by EK9MAX

Not venting hot air into the intake charge.

The main reason people do it is because the stock BPV doesn't vent enough air thus creating compressor surge. So people upgrade to bigger ones, or add additional ones.
A little confused here. You're venting air from the after cooler. Presumably if its doing its job correctly the air should be cooler or at least similar to to intake temps
Reply
Old Jun 18, 2014 | 04:52 PM
  #16  
EK9MAX's Avatar
Thread Starter
Registered User
 
Joined: Jul 2006
Posts: 877
Likes: 0
From: Calgary, Alberta
Default

Originally Posted by kryptonite
Originally Posted by EK9MAX

Not venting hot air into the intake charge.

The main reason people do it is because the stock BPV doesn't vent enough air thus creating compressor surge. So people upgrade to bigger ones, or add additional ones.
A little confused here. You're venting air from the after cooler. Presumably if its doing its job correctly the air should be cooler or at least similar to to intake temps

Looks like it's on the inlet side of the after cooler. So it's before....
Reply
Old Jun 19, 2014 | 07:44 AM
  #17  
CoolGuy094's Avatar
Registered User
 
Joined: Jan 2011
Posts: 4,624
Likes: 10
Default

Yeah the BOV is on the inlet of the aftercooler, but regardless the charge air is always going to be warmer than ambient air temps. You may save a few degrees on your IAT's by venting to atmosphere. It won't be extreme.
Reply
Old Jun 19, 2014 | 09:10 AM
  #18  
APoner's Avatar
Registered User
 
Joined: Dec 2010
Posts: 431
Likes: 4
Default

Originally Posted by s2000Junky
Originally Posted by CoolGuy094' timestamp='1403026839' post='23206930
[quote name='EK9MAX' timestamp='1403024993' post='23206877']
Was it hard to fit the stock bpv on the air pump port?
Nah. Per Junky's advice I used a short piece of 3/4" hose over the air pump port to basically make the port OD larger in diameter. A 1" hose slipped right over it and onto the Bosch valve inlet. Autozone didn't have 1" heater hose, but NAPA did. Just make sure you select a vacuum source from the intake manifold that is large enough to support both BOV's.
Sorry I didnt see your post before making mine. Yes this is correct. Though I havent had any issue with just T both BOV together on same vac line
[/quote]

I'm running it this way with no issues as per your recommendation 16psi of boost on a novi 1220 and no surge at all.
Reply
Old Jun 19, 2014 | 11:11 AM
  #19  
kryptonite's Avatar
Member
Spotter
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2011
Posts: 8,213
Likes: 277
From: Somerville, MA
Default

Originally Posted by APoner
Originally Posted by s2000Junky' timestamp='1403029549' post='23207009
[quote name='CoolGuy094' timestamp='1403026839' post='23206930']
[quote name='EK9MAX' timestamp='1403024993' post='23206877']
Was it hard to fit the stock bpv on the air pump port?
Nah. Per Junky's advice I used a short piece of 3/4" hose over the air pump port to basically make the port OD larger in diameter. A 1" hose slipped right over it and onto the Bosch valve inlet. Autozone didn't have 1" heater hose, but NAPA did. Just make sure you select a vacuum source from the intake manifold that is large enough to support both BOV's.
Sorry I didnt see your post before making mine. Yes this is correct. Though I havent had any issue with just T both BOV together on same vac line
[/quote]

I'm running it this way with no issues as per your recommendation 16psi of boost on a novi 1220 and no surge at all.
[/quote]
What size pulley are you using to get 16psi. SOS's 1220 chart seems a little off to me so I'm curious
Reply
Old Jun 19, 2014 | 11:28 AM
  #20  
CoolGuy094's Avatar
Registered User
 
Joined: Jan 2011
Posts: 4,624
Likes: 10
Default

I'm using a 3.2 on my 1220. My tuner said it hit 18 PSI on the dyno, but it was a pretty cold day and literally at sea level. On a more regular temp day and at about 700 feet above sea level its more at 16 PSI.
Reply



All times are GMT -8. The time now is 12:08 AM.