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Thread: blow through vam and blow off valve question

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  1. #1
    Sexy and i know it fast4ord's Avatar
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    blow through vam and blow off valve question

    Was wondering where would it be best to put my blow off valve. I am mounting the vam blow through in the i.c. to t.b. pipe. Should i put the blow off before the vam, or in between the vam and t.b? Or before the intercooler altogether. Thanks guys.
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  2. #2
    Tripedalist yeahloh95's Avatar
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    i would put it before the vam that way it is "reading " only air going into the motor.
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  3. #3
    73 2.3 Turbo Pinto map351's Avatar
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    Question

    The closer to the TB the quicker the BOV reacts as it get the signal on the other side of the throttle plate when the plate closes, But if you have the BOV at the compressor discharge you relieve the pressure at the wheel first is stead of on the other side of the intercooler. I have my BPV at the compressor But the signal takes a little longer to react at the BPV!
    I had the BPV at the turbo on my ranger and it worked great
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  4. #4
    Member loutheplumbr's Avatar
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    you wouldn't want to blow off metered air so my suggestion would be to put it between the turbo and vam
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  5. #5
    73 2.3 Turbo Pinto map351's Avatar
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    Quote Originally Posted by loutheplumbr View Post
    you wouldn't want to blow off metered air so my suggestion would be to put it between the turbo and vam
    A few people on TF tried a BOV after the VAM, The AFR goes rich for a instant when the valve opens not a big deal...
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  6. #6
    Member loutheplumbr's Avatar
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    personaly when i do my fmic i am just gonna use a bypass valve and leave the vam draw thru
    1985 Mercury Capri
    2.3 Turbo T-5
    1988 Ford Thunderbird Turbocoupe losing its powertrain
    1993 lx vert getting re-powered
    1959 Ford 871 undergoing operational restoration
    2011 Dodge Ram 2500 HD Cummins
    1984 Ford E350 Tow Vehicle Project 7.5L

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