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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-20-2004, 08:21 PM   #41
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Something to chew on...

3.8 SC Thunderbirds came with platinum plugs from the factory. And the modded guys swear by them that i've run into on another forum.
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Old 09-20-2004, 08:26 PM   #42
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Different compression ratio. They run 8.2:1.
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Old 09-27-2004, 02:35 PM   #43
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I read in a previous post that these copper plugs can be changed once a year.

Considering that the plugs don't foul up and such, is this a good time period to change the plugs?
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Old 09-27-2004, 04:03 PM   #44
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I think once a year is more than reasonable. On a modded car, your plugs won't last as long. It'* hard to find the perfect balance. They're easy enough and cheap enough. I do it at LEAST once a year, sometimes more often, but that'* for other reasons. A failed plug wire will foul a plug. I simply replace the whole set when this happens.
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Old 01-24-2005, 07:08 PM   #45
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Since this seems to be the spark plug thread, I hope people don't mind if I ask a few questions. (1996 SE, 88,xxx miles : I drive hard and my mom makes a lot of short trips)To my knowledge the spark plugs have never been changed. I know the wires are stock. I plan on replacing the plugs ASAP. I would like to do wires also.

Onto my questions/requests:
1 Can you guys give some tips for removing spark plugs. They have been in the block gor the last 8/9 years, so it'* not like they are just going to fall out.

2 For a stock car(other than K&N replacement filter and future exhaust) should I stay in the stock heat range?

3 What should I do before I put the new plugs (and wires) back in/on??
a. anti seize on the threads
b. and...?

4 any other tips/tricks that may be helpful (for spark plug changing in general?)
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Old 01-24-2005, 10:42 PM   #46
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I'm sure someone else can explain certian tips and such better so i'm not gona try. But you should try autolite 605'* from www.intense.com. I've read nothing but good reviews about them by other L36 owners. But if your a fan of NGKs then get the TR55'* from www.zzperformance.com, they could be just as good but i haven't read anything about them in a L36 car.
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Old 01-25-2005, 12:01 AM   #47
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Why buy plugs from an online vendor when both of those plugs are available at most retail outlets? TR55'* are available at NAPA, as are TR6'*.
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Old 01-25-2005, 02:46 PM   #48
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Hey Wellwren, Have you lowered you gap now that you are injecting H20/Alk?
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Old 01-25-2005, 04:50 PM   #49
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Not until the new trans and warmer weather
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Old 01-25-2005, 07:35 PM   #50
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i got my autolites for $1 a plug so the ngks arent that much more expensive...
and for the ford supercoupe not only is it a different compression ratio, but they are also intercooled
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