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Old 07-15-2009, 03:11 PM   #321
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I just wanna say that everything that was said about the Taylor Thundervolts being a very good wire is true. I had been using the FRPP wire set but one went bad on me and I had a misfire so I ordered up a set of Taylors. The misfire is gone and I think it runs better than it ever did with the FRPP wires. I'll just rehash what's already been said. FRPP wires=Fail. Thundervolts kick butt!
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Old 07-23-2009, 01:38 PM   #322
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03 SVT plugs

I just plulled one from a used 03 SVT with 76K miles. The car idels a bit rough when cold but no noticable miss when run. The old plug is an Autolite XP 536 ti.and the center electrode seems to have been worn down to a sharp pencil lead like point. I presume a titanium? or a platinum? Anyway its a stock SVT not looking for max performance so I'm thinking of installing the denso platiniums. Would anyone advice for something better? Is the Motorcraft copper better for a totally OEM car?
Also - while the wires look just fine, if the rough idle does get better should I replace the wires next?

I got impatient and just installed a set of motorcraft OEMs I bought from autozone. Gapped at .054 per spec. Now the initial idle is a bit more rough than it was with the old plugs (which went deeper into the combustion chamber.) It also showed a bit of hesitation when first fired up. I'll double check my installation but at this point I'm thinking I choose the wrong plug even though I went with the factory spec!

Last edited by DOLadd69; 07-23-2009 at 02:51 PM. Reason: adding info
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Old 07-23-2009, 02:37 PM   #323
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I would just use the stock Ford Platinums, cheaper than Denso and perform just as well if not better.
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Old 07-30-2009, 02:46 PM   #324
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My local Ford dealer has the Motorcraft Copper's in stock (SP-463) so I'll pick those up today.

I ordered my Taylor wires from Summit Racing today, so they'll be here in a week or so.

My question is this:

Should I gap the plugs at .060 and install them with the stock wires, until next week when the Taylors arrive?

Thanks in advance for the help!!!!
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Old 07-30-2009, 06:47 PM   #325
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I would. and if they try to miss just close them back down until your new wires arrive.
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Old 07-30-2009, 08:44 PM   #326
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So has anyone noticed a drop in MPG after installing the Thundervolts (.060 gap)along with the copper cores? That's about all I have done to my SVT aside from the cfm thermostat, borla cat back and K&N air filter.
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Old 09-13-2009, 11:53 AM   #327
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thread is great help, going to buy the copper ones right now!
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Old 09-14-2009, 10:31 PM   #328
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just ordered from CFM, I hope its legit ( since im new here never heard of them)
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Old 09-15-2009, 02:45 AM   #329
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Just curious. Would it be a benefit to go to a ten mm spark plug wire set on a stock SVT over 8 mm spark plug wires?
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Old 09-15-2009, 07:35 AM   #330
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The bigger the wire the less resistance... the less resistance the more spark you get to the plug.

and Yes, CFM is a very good company.
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