LC-1 sensor mounting and advice - Miata Turbo Forum - Boost cars, acquire cats.

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Old 03-20-2008, 01:07 AM   #1
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Default LC-1 sensor mounting and advice

Several months (perhaps over a year) prior to turbo charging my 2000 Miata, I plan on Mega-squirting in parallel with the stock ECU, installing 440cc fuel injectors, and using an LC-1 wide band. This seems like a safer way to learn how to tune with a Mega-squirt before the added complexity of forced induction.


My concern is with installing the LC-1 sensor. Would it attach into the stock exhaust? Can I put it in the stock exhaust’s 02 sensor hole? Or does it require a bung in a different spot?

If need be, how do I go about putting a bung in? Perhaps I should go with a used, after-market (OBX, JR) exhaust header for now, until I save for a turbo manifold? Do after market headers have a bung for a wide-band? Is a bung something that can be done without welding?
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Old 03-20-2008, 01:34 AM   #2
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yeah, you can put it in place of the stock o2, The brown is wideband out and yellow is narrowband out but those can be changed. You can run the narrowband out to the stock ecu and read the wideband out
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Old 03-20-2008, 01:52 AM   #3
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putting it in stock location with turbo can overheat it and burn it out
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Old 03-20-2008, 01:55 AM   #4
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Stock is probably fine, until you get a turbo. Then you'll want it about 10 inches before your cat.
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Old 03-20-2008, 02:11 AM   #5
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about needing the wide band o2 farther down line due to heat from the turbo, for those without an extra hole in their downpipe near the cat, like us greddy guys, where can you get a bung and what is the proper size/threading for the bung to have welded in?
-Ryan
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Old 03-20-2008, 02:12 AM   #6
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18 x 1.5
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Old 03-20-2008, 02:25 AM   #7
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Usually the exhaust shop will sell you the bung and weld it in, but the LC-1 should come with a bung.
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Old 03-20-2008, 02:29 AM   #8
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i have a 1.6 with an aftermarket 1.8 exhaust that has the bung for the secondary O2 sensor that i obviously don't have. Im running a test pipe. Am I right i thinking that bung is a nice candidate for my AEM sensor?
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Old 03-20-2008, 02:31 AM   #9
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Quote:
Originally Posted by supersaiyan93 View Post
i have a 1.6 with an aftermarket 1.8 exhaust that has the bung for the secondary O2 sensor that i obviously don't have. Im running a test pipe. Am I right i thinking that bung is a nice candidate for my AEM sensor?
That'd do mighty well. Just make sure there aren't any exhaust leaks before the sensor.
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Old 03-20-2008, 11:14 AM   #10
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Quote:
Originally Posted by Bryce View Post
Usually the exhaust shop will sell you the bung and weld it in, but the LC-1 should come with a bung.
Yep it comes with a bung and a plug.
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Old 03-20-2008, 05:37 PM   #11
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Can the UEGO also be used as a NB and WB at the same?
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Old 03-20-2008, 05:40 PM   #12
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no
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