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shokwave2
Samba Member
Joined: February 02, 2010
Posts: 264
Location: Wollongong, Australia
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 Posted: Fri Jul 05, 2013 12:07 am Post subject: Are Bosch W10AC plugs too hot for street use? |
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Local parts shop had no NGK B5HS plugs so they gave me Bosch W10AC. I checked the heat range chart and they are equal to a NGK 2. Is this too hot a plug to run on the street in a 2054cc with dual 40IDFs? If they are fine to run, would i have to re-jet the carbs to allow for the extra heat?
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Slow 1200
Samba Member
Joined: July 02, 2004
Posts: 2127
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| Posted: Fri Jul 05, 2013 3:10 am Post subject: |
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I've never seen anyone using those, I wouldn't want to be the guinea pig
just find the right plugs |
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volksworld
Samba Member
Joined: November 26, 2011
Posts: 2580
Location: formerly NY currently NC
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| Posted: Fri Jul 05, 2013 5:22 am Post subject: |
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| stock bug plug is w8ac...that's 2 steps hotter ! don't use them unless you enjoy detonation |
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Alstrup
Samba Member
Joined: July 12, 2007
Posts: 7852
Location: Videbaek Denmark
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| Posted: Fri Jul 05, 2013 5:35 am Post subject: |
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I´d even say that a B5 is too hot for such an engine in such ambient temps. But of course that also depends on tune. Here I only use B5´s in bone stock engines.
T |
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Boolean
Samba Member
Joined: January 19, 2012
Posts: 1712
Location: Stockholm
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| Posted: Fri Jul 05, 2013 6:40 am Post subject: |
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Do not use those plugs unless you want pretty holes in your pistons. Also, don't take advice from whoever sold them.
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 79633
Location: Sneaking up behind you
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| Posted: Fri Jul 05, 2013 7:35 am Post subject: |
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Replace the plugs and find another repair shop.
They're more interested in selling you what than have in stock than getting the right part.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
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Quokka42
Samba Member
Joined: December 02, 2010
Posts: 3117
Location: Melbourne, Australia
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| Posted: Fri Jul 05, 2013 4:19 pm Post subject: |
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He said parts shop.
Just noticed you're in Wollongong, I'll dig around for an online place I found, they can ship you pretty much any spark plug in a couple of days for less than your local parts shop.
Don't use anything hotter than the W8AC - in your part of the world you can get away with one colder, but any hotter is a real bad idea.
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shokwave2
Samba Member
Joined: February 02, 2010
Posts: 264
Location: Wollongong, Australia
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| Posted: Fri Jul 05, 2013 4:53 pm Post subject: |
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Finally got my hands on some NGK B5HS plugs. Not many places stock them over here. Athough i might order a few sets online so i've got spares.
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