blow off valve - vent to atmosphere mod (increase sound)

Discussion in 'Generation 4 - Performance Upgrades' started by diego d, Oct 29, 2019.

  1. Sho_cole

    Sho_cole New Member

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    Boomba racing has a set of adapters that will change your stock diverter valves for a 50% vent to atmosphere. I have them on my car and I love them


    Sent from my iPhone using Tapatalk
     
  2. skyshadow07

    skyshadow07 SHO Member

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    I would suggest keeping the recirculation feature of the BOVs. Want to run aftermarket BOVs, go for it. Just don't dump the air to atmosphere.
     
  3. Jordan_R

    Jordan_R SHO Member

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    Difference is the BOV's venting to the intake or to atmosphere makes no difference. The BOV's don't have a restriction to the intake the same as they wouldn't have a restriction to atmosphere. BOV's are closed on WOT and boost pressure is mitigated via the throttle body and wastegates. No such thing as overspool with VTA BOV's. Don't know why it's a hot topic here. Not to mention that the recirculated air isn't accounted for like on Evo's or whatever. It's a non issue as everything is MAP and goes solely off air pressure and not air flow. The engine isn't compensating for "extra air" that it is now missing.
     
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  4. SM105K

    SM105K Land Yacht Pilot Supporting Member

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    Thank you Jordan, I was too lazy to type that all out.
     
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  5. MHW100

    MHW100 SHO Member Supporting Member

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    Is there any advantage of the Boomba units over the chair leg bottoms. Also, is there the oil spray in both scenarios in the engine compartment in both cases?
     
  6. SM105K

    SM105K Land Yacht Pilot Supporting Member

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    No and yes.
     
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  7. MHW100

    MHW100 SHO Member Supporting Member

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    Kind of gross having oil sprayed around. It would be palatable if there was a performance gain.
     
  8. SM105K

    SM105K Land Yacht Pilot Supporting Member

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    It isnt bad at all.
     
  9. Billy VK

    Billy VK Member

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    Atmosphere vent or recirc in our cars is just the difference between "psshhhh" and no "psshhhh" .
     
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  10. skyshadow07

    skyshadow07 SHO Member

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    I'm the same, if it helps efficiency or power I would consider but it does nothing other than making the car louder.
     
  11. MrCRKLPOP

    MrCRKLPOP New Member

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    Anyone know what the size of the chair bottom is. Video doesnt really say. Seams like a silly mod id like to play with

    Sent from my SM-G975U using Tapatalk
     
  12. 15SHOPP

    15SHOPP Member

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    1in ID is the size you’ll need
     
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  13. skyshadow07

    skyshadow07 SHO Member

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    Here is a question of something to vent to atmosphere; can the PCV be vented to atmosphere since only manifold pressure is measured? That would not only reduce intake air temp but reduce carbon build up as well.
     
  14. yaycandy

    yaycandy SHO Member Supporting Member

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    Tial blow off valves on the hot pipes is VERY loud. About 5 times louder maybe. Got old pretty quick though. I sense reverted back to stock pipe with chair caps. Had to put a resistor on the plug for the rear stock bov harness with the hotpipe, not sure what ohm they were anymore as the rear when unplugged makes the service light come on for some reason. But the tial bov is really really loud and awesome until you are on a long roadtrip lol
     

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