Thread: Upstream 02 sensor speed daddy

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  1. #1 Upstream 02 sensor speed daddy 
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    I worked the fire wall a little but it looks like i need at least 1/2" to get the sensor in. I read about the corvette sensor being shorter. i would rather buy a new 02 then keep air hammering the fire wall. what did you guys do when you installed headers?
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  2. #2 Re: Upstream 02 sensor speed daddy 
    Killa Bee Scottydoggs's Avatar
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    i put mine in the cross over pipe years ago. just the other day i had it installed in a new dp i had re built. new flex and new pipe minus the goose neck.



    cross over pipe o2.

    Last edited by Scottydoggs; 05-06-2017 at 07:34 PM.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: Upstream 02 sensor speed daddy 
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    what about a 90 degree elbow adapter. Would that bring the sensor too far out of the exhaust stream to read correctly?

    I found some weld in bungs as well. i only have mig welding abilities at home, wish i had a tig.
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  4. #4 Re: Upstream 02 sensor speed daddy 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Front sensor needs to stay in the exhaust stream, no 90 degree elbow should be used.

    I mig welded my wideband bung straight to the side on my SD downpipe, worked great.

    SMGPFC Member #1
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  5. #5 Re: Upstream 02 sensor speed daddy 
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    When you guys welded in the bung did you use SS consumable and the correct shielding gas?
    I have a mig and can get SS wire for it but i dont want to shell out the money for another tank and tri-mix gas.

    I read if using 75% 25% mix for mild steel the weld joint will still rust. I am prolly over thinking it but it would be nice not to have the bung weld rusting on nice polished headers.
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