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> Spark Plug Question.., Heat ranges? How to decode?
Rusty
post Mar 30 2005, 05:36 PM
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I have several sets of plugs here... some Bosch W5DC plugs and some W7DC plugs?

I know that the numeral in the part number is the heat range - but what does it mean to me and my little /6 cylinder monster?

-Rusty (IMG:http://www.914world.com/bbs2/html/emoticons/smoke.gif)
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Rusty
post Mar 30 2005, 06:27 PM
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QUOTE (Root_Werks @ Mar 30 2005, 06:41 PM)
For Bosch, the higher the #, the slower it transfers heat (hotter plug). If you do nothing but race, then the 5's are good. I usually stick with 7's for street use. Sometimes even 8's.

My favorite plug bosch makes is a W7DTC, grab some, you will see why I like them. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

Thanks for the info.

Okay... I'll bite. Why?
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Posts in this topic
Lawrence   Spark Plug Question..   Mar 30 2005, 05:36 PM
Root_Werks   For Bosch, the higher the #, the slower it transfe...   Mar 30 2005, 05:41 PM
ArtechnikA   ...   Mar 30 2005, 05:42 PM
Lawrence   I've got three sets of W5DCs here. ...   Mar 30 2005, 06:25 PM
Lawrence   ...   Mar 31 2005, 09:40 AM

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