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Red 99 Dak RT
Dodge Dakota
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7/21/2005
22:28:46
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 Subject: Plugs
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Message:
Can anyone tell me why I shouldn't use Platnum or Split Fire Plugs in my Dakota? I've seen where they have been reliable and sometimes increases mileage and/or horsepower.
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rc
Dodge Dakota
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7/22/2005
13:04:40
|  RE: Plugs
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i dont know all the details but i heard that spark plugs have 'heat ranges' and platinum and split fires have a higher heat range and could cause the valves to heat up higher than they are supposed to. That is where they get their extra horsies...which can be good, but could cause damage to you valves??? I didnt have all the time to look into it so i stuck with champions (copper) plugs.
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Jecht
Dodge Dakota
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7/22/2005
14:38:40
| RE: Plugs
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Message:
from what I heard they are not good with coil over plugs. something about with burning them up or something. but heard plenty of poeple that runs plats with no problems. its just a judgement call on your part. you want to take that risk or play it safe. its up to you after all its your vehicle and you have to live with your desision.
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Plug Me
Dodge Dakota
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7/22/2005
15:20:08
| RE: Plugs
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Message:
Plug heat range applies to the plug, and has no direct affect on valve temp.
Different compression ratios/emission level requirements require different plug heat ranges. The overall health of the combustion process depends on proper plug heat range.
Too "cold" a plug will tend to foul, because the plug is not retaining enough heat to keep itself clean. The engine will feel like it's lost power, and might run rough.
Too "hot" a plug will cause your engine to pre-detonate, or ping and knock, because of the extra heat retained by the plug during engine operation.
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Pacman
Dodge Dakota
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7/25/2005
21:19:31
|  RE: Plugs
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Message:
rc is right. I know a mopar mech that works at the dealer and builds motors and races at Gainesville, Fl. He said that the platinium heat range was too much and probably would cause problems over time. He recommended the "typical" factory Champion copper plug and has seen the most success when running them.
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