LC1 O2 sensor heat sink - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-04-2007, 12:50 PM   #1
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Default LC1 O2 sensor heat sink

Is it nessesary to have the heat sink for the LC1 on a non turbocharged 1.8 Miata?

Thanks,

Eddie
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Old 05-04-2007, 12:51 PM   #2
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no
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Old 05-04-2007, 12:52 PM   #3
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doubtful
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Old 05-04-2007, 02:00 PM   #4
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Good,

Thanks,

Eddie
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Old 05-04-2007, 02:08 PM   #5
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No it's not, I ran mine for 3-4 months n/a with no heatsink. I did add one prior to fitting my supercharger though...



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Old 05-04-2007, 02:22 PM   #6
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I made the same thing in alum. while I had the transmission dropped....fixed my "heat" error after boosted runs!
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Old 05-04-2007, 03:15 PM   #7
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Quote:
Originally Posted by Braineack View Post
I made the same thing in alum. while I had the transmission dropped....fixed my "heat" error after boosted runs!
ian't Alui's melting point around 500deg? exhaust gasses can hit double that?
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Old 05-04-2007, 03:40 PM   #8
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Quote:
Originally Posted by richyvrlimited View Post
ian't Alui's melting point around 500deg? exhaust gasses can hit double that?
Unlikely they'll be that high that far down and OUTSIDE the pipe. The purpose of the heatsink is to shield the body of the sensor from extreme heat radiated from the pipe the sensor is installed in. Not the actual exhaust gasses themselves.
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Old 05-04-2007, 03:41 PM   #9
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~650°c
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Old 05-04-2007, 03:43 PM   #10
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good thing it's not inside the exhaust
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Old 05-04-2007, 05:28 PM   #11
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Quote:
Originally Posted by jayc72 View Post
Unlikely they'll be that high that far down and OUTSIDE the pipe. The purpose of the heatsink is to shield the body of the sensor from extreme heat radiated from the pipe the sensor is installed in. Not the actual exhaust gasses themselves.
I know the purpose, I just figured if the exhaust temps inside were topping 1000C then outside and a foot away could easily be half that
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Old 05-07-2007, 08:51 AM   #12
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where can i score a small piece of copper sheet? Homo Depot?
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Old 06-20-2008, 12:00 AM   #13
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bringing back something from the dead, but where are you guys getting copper for a heat sink?
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Old 06-20-2008, 12:07 AM   #14
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copper transmits heat faster than aluminium, but it's harder to find. Aluminum sheets are pretty easy to get at the hardware store and in this application it will work 97% as well.
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Old 06-20-2008, 12:54 AM   #15
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just use aluminum. it's cheap and easy.
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Old 06-20-2008, 12:57 AM   #16
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If you really want to use copper you can buy a copper pipe coupler. Cut it lengthwise and flatten it out. The coupler fittings are cheap enough and you can get them anywhere. Long as you can cut, flatten and drill it you're good to go.
Saw patsmx5 do that couple months ago.
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