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Old 03-21-2002, 12:18 PM   #1
Revision
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Member#: 242
Join Date: Sep 1999
Chapter/Region: MWSOC
Location: Carol Stream, IL USA
Vehicle:
MY05 PSM GGA !STOCK
MY99 RS-RIP / MY95 MX-5

Default O2 sensor before Turbo

So anyone want to tell me all the downsides to placing the O2 sensor before the turbo inlet?

The upsides are faster and more accurate O2 readings..

---

And, I'm looking for a local welder.. Kartboy quality level.. Anyone want to recommend any?
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Old 03-21-2002, 01:08 PM   #2
WRX 555 STi
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I've got 2 MIGs and 2 ARCs ... wanna try me? I'll do it for free dude.


~Anthony.
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Old 03-21-2002, 01:42 PM   #3
8Complex

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No real downsides I can think of other then that it'll be exposed to more heat there, which is not a big deal because it's designed for that. *shrug*
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Old 03-21-2002, 01:58 PM   #4
HndaTch627
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i think before the turbo is the best place, you will get the most accurate readings there.

jeremy
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Old 03-21-2002, 02:06 PM   #5
Revision
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Quote:
Originally posted by WRX 555 STi
I've got 2 MIGs and 2 ARCs ... wanna try me? I'll do it for free dude.
You can weld??


---

I guess a good place then would be in the uppipe.
Decisions, decisions...

Anyone know offhand what the thread type and size are on the O2 sensor?
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Old 03-21-2002, 02:26 PM   #6
HndaTch627
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same thread as the spark plugs

hint hint
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Old 03-21-2002, 02:46 PM   #7
Achilles38WRX
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i don't have a wrx

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i have mine hooked up to my rear O2 sensor, after the first two cats, after the turbo. jorge said "theoretically" it will never read 'full rich', being after the cats, and it never does. also takes a split second to respond after you stomp on or let off the gas.

mine also reads lower (like 1 or two leds) when my lights are on... dunno why.

mark
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Old 03-21-2002, 03:00 PM   #8
8Complex

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M18x1.5 thread for standard O2 sensors.
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Old 03-22-2002, 12:49 AM   #9
WRX 555 STi
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Revision: I can weld anything from wires to heavy structural steel

Just bring the damn thing over and we'll weld it in place. I don't do powdercoating though

~Anthony.
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Old 03-22-2002, 01:56 AM   #10
Revision
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MY99 RS-RIP / MY95 MX-5

Default

That's right, you guys make fences.. Duh..

Gotta find a M18x1.5 thread weldable bung. Then I gotta scrape away some of this coating on the pipe. But first, this time I will test fit it on the car!
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Old 03-22-2002, 12:06 PM   #11
8Complex

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Quote:
Originally posted by Revision
Gotta find a M18x1.5 thread weldable bung.
Just look for an O2 sensor bung... it's a standard from what I understand. If you're paranoid, just try it out before buying it. BTW, DRE should have them in stock, I would think.
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