BOV comparison ( shoppers guide ) - Page 3

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  1. #21
    CelicaSupra.com Member pituala's Avatar
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    I really wanna swap my HKS out for a Tial 50mm!!!
    '85 P-Type 1J "The Torqueless Wonder"
    557whp/449wtq@25psi on 93 octane
    Precision 6266SP CEA


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  3. #22
    CelicaSupra.com Member Yotaholic's Avatar
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    Like this one ?

    TiAL Sport Blow Off Valve

    For use on turbo-charged and super-charged applications (Paxton, Vortec, etc.). The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve; we believe this is the largest valve available with the highest flow capacity.
    The V-Band design aluminum mounting clamp gives a very clean and unique appearance. The clamp is anodized and uses Stainless Steel hardware for a long lasting, corrosion-free appearance.
    The valve seal utilizes a Viton O-ring that is clamped in place to prevent the possibility of sticking to the seat and pulling out. The valve stem and guide are Teflon-lubricated, hard anodize-coated for wear resistance.
    The Blow Off Valve also comes with our own machined aluminum banjo-type air fitting and bolt, with over sized 10mm hose barb for quick actuator response. The actuator has a high temp silicone Nomex-reinforced diaphragm for long life.

    Sounds good (pun intended ) LOL !!


    question : what are the advantages and disadvatages of mounting the bov on the hot vs cold side ? Toyota always place them on the hot side yet 90% of the swaps we see the bov is mounted on the cold side . Were they wrong or does it make a difference what side it's mounted on ?. Please provide pros and cons for the folks that are wondering the same thing

  4. #23
    CelicaSupra.com Member 84supra84's Avatar
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    Quote Originally Posted by Yotaholic View Post
    Please provide pros and cons for the folks that are wondering the same thing
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    84 p type- 5m-gTe with 208Whp at 5.9 Psi, Full Mandrel bent 3" exhaust(No Cat), SAFC, and a Greddy type RS BOV. Hopefully no Boom anytime Soon. . . Hidden Content **&New 80amp alt. Upgrade**
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    Supra, Its a Religion
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  6. #24
    CelicaSupra.com Member pituala's Avatar
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    I will probably buy two and put one on both sides.
    '85 P-Type 1J "The Torqueless Wonder"
    557whp/449wtq@25psi on 93 octane
    Precision 6266SP CEA


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  7. #25
    CelicaSupra.com Member Yotaholic's Avatar
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    Quote Originally Posted by pituala View Post
    I will probably buy two and put one on both sides.

    Yes I considered doing that as well ,, I mean why not if you have the space and if your running ceramic's it can't be a bad idea ,,can it ? oh yeah your past that stage

  8. #26
    CelicaSupra.com Member BillyM's Avatar
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    ...imagine the direction of airflow. Pressure built up in the IC and piping, with a general direction of "IN", throttle slaps shut, pressure wave builds up and it's gota go somewhere. Do you reverse the flow of air, having running back towards the turbo through the IC etc? ...or do you release it right near the BOV.

    That's what I imagine the thinking is, but I don't have any hard data.

    ...that said, mine's down low on the hot side.

    --billyM
    White 85P - Blue/Silver 85P
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  9. #27
    CelicaSupra.com Member pituala's Avatar
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    Quote Originally Posted by Yotaholic View Post
    Yes I considered doing that as well ,, I mean why not if you have the space and if your running ceramic's it can't be a bad idea ,,can it ? oh yeah your past that stage
    Teehee
    '85 P-Type 1J "The Torqueless Wonder"
    557whp/449wtq@25psi on 93 octane
    Precision 6266SP CEA


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  10. #28
    CelicaSupra.com Member 83restomod's Avatar
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    hmmmmmm. this is interesting. so if im running a MAFT gen 1 on my 7mgte i should or should not be venting to atmosphere???
    1983 black p-type 2JZ/R154

  11. #29
    CelicaSupra.com Member Yotaholic's Avatar
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    Quote Originally Posted by BillyM View Post
    ...imagine the direction of airflow. Pressure built up in the IC and piping, with a general direction of "IN", throttle slaps shut, pressure wave builds up and it's gota go somewhere. Do you reverse the flow of air, having running back towards the turbo through the IC etc? ...or do you release it right near the BOV.

    That's what I imagine the thinking is, but I don't have any hard data.

    ...that said, mine's down low on the hot side.

    --billyM
    Thats it and if we had 2 wouldn't we exhaust damn near all the pressure ? But in turn would we create a dead air space between throttle position ? Like a gap in air pressure ,, would it affect the intake air speed ? Just things i've been thinking about since my install and I really don't know much about it but logic suggests the more pressure we can exhaust the better . I really want my turbos to last and if I can spend 200 to save 2000 im willing to learn and give it a try Hot side low for me as well..

  12. #30
    CelicaSupra.com Member Superium's Avatar
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    Theres a TurboXS bov thats a drop-in replacement for the stock 7m one.
    http://cgi.ebay.com/ebaymotors/Turbo...mZ130255847707
    Mark K. -'83 Supra (Carmen) -'87T Supra (Cailin) -'91 Accord (wtf)
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