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Re: Spark Plug
Originally Posted by
walt.buskey
What's the difference between the REM40Es and the UREM37BYs? (My engine came with the REM40s)
About 3 bucks
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Re: Spark Plug
Originally Posted by
Bruce
About 3 bucks
Thanks guys for that sure seems 37by better then 41e. Has anyone, seeing what it does to CHT between the both.
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Re: Spark Plug
Going from memory champion plugs get hotter with lower numbers. I use the 37's in my O200 because they are shorter and didn't have to put bumps in my cowl.
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Re: Spark Plug
You are right, I should have looked it up. It's NGKs the lower the hotter.
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Re: Spark Plug
Ya that got me too when I first got into aviation. As a kid we'd run A7's in the old 12.3hp Rotax and go to the A6's when it got colder to help it from over fouling the plug.
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Re: Spark Plug
My new plugs arrived will try the Tempest UREM37BY. Installed tonight. If the weather is nice will go for a flight tommorow.
Attachment 11609Attachment 11610
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Re: Spark Plug
Let us know what you think. I now have 65 hours on mine since Thanksgiving, still as smooth as ever!
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Re: Spark Plug
I'm running the same plugs, very happy with them. Probably 100 or so hours on them.
Sent from my iPhone using Tapatalk Pro
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Re: Spark Plug
Originally Posted by
CamTom12
I'm running the same plugs, very happy with them. Probably 100 or so hours on them.
Sent from my iPhone using Tapatalk Pro
Installed and tested them and to be really honest just noticed little more power on the high end (25 rpm) as for idle it was all the same smoothness'
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