LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction Superchargers | Turbochargers | Intercoolers

o2 before or after the turbo.

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Old May 23, 2005 | 10:36 AM
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Default o2 before or after the turbo.
I have been told that 02 sensors are pressure sensitive. Is this correct or not.
Ricky
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Old May 23, 2005 | 10:41 AM
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My O2 is in my downpipe. EGT is before the turbo.

My problem is 2 downpipes, one O2 sensor. oops.
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Old May 23, 2005 | 12:58 PM
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We put 'em in the downpipe, heard the pressure will affect 'em too...
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Old May 23, 2005 | 10:11 PM
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I had to move mine - they need to be after the Turbo. Lta, Ark
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Old May 23, 2005 | 10:12 PM
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Well ****! Guess thats another thing I have to change on this kit
J
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Old May 23, 2005 | 10:21 PM
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Not sure if they are pressure sensitive. I think they are more sensitive to heat. I placed one on the crossover and one on the down pipe. Seems tobe working fine.
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Old May 24, 2005 | 12:09 AM
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I was told that they were sensative to pressure. ALSO when I read the Instruction on the UEGO it said to place it after the turbo! Lata, Ark
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Old May 24, 2005 | 11:05 AM
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Grand nationals used to run the old one wire sensor before the turbo, I think the NON_SPONSOR kit had it before the turbo too.

-Geoff
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Old May 24, 2005 | 11:24 AM
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Kurt at W2W told me to put the O2 sensor in the downpipe when I ordered my BS3 unit, but it's a wideband sensor.
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Old May 24, 2005 | 11:35 AM
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Rule of thumb guys....

Wideband is after the turbo on the DP...about 6 inches down.

Narrowband can be before the turbo.

Jose
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Old May 24, 2005 | 04:28 PM
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Originally Posted by JZ 97 SS 1500
Narrowband can be before the turbo.
Lifesaver Spent some cash on SS O2 bungs last night, but glad I won't have to use em...my denso O2's are staying put. Thanks for saving me some trouble Jose
J
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