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Old 09-18-2001, 06:22   #1 (permalink)
Shh i'm huntin more power
 
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Spark Plugs

Ok, seems i've got a problem with the new set of NGK plugs in my XR8. Just wondering what spark plugs everyone uses and what you set you gaps to????
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Old 09-18-2001, 06:38   #2 (permalink)
Two SC 61's = trouble
 
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Yes come to think of that.There are two lengths.I have a/m alloy heads and swapped the plugs over & had a low speed miss, [cold] even done a dyno run through the xr club.Found out that they are the wrong lenghth way too short,I needed the plugs for sprint, way better performance and economy.. ngk's. forget what part # is..platnum ?? $$$
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Old 09-19-2001, 02:51   #3 (permalink)
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Get the Platinum NipponDenso plugs from ford dealer!

They are actually in a motorcraft box..

P.S bring chequebook.:D
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Old 09-20-2001, 21:20   #4 (permalink)
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Thumbs up Spark Plugs

In response to your plugs for ya EL XR8, best on the market in terms of mileage, spark, and resistance to temp (from fanging) is NGK BPR5FS-15. Gap them to 1.4mm. They are a V grooved type plug. Happy revving
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Old 09-20-2001, 23:20   #5 (permalink)
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Come to think of it I've got a slight miss at idle on my 250. I know the EFI plugs are different, as they penetrate more into the combustion chamber.. Would it be worth maying more $$$ in the hope that it *might* get rid of the miss? Its a next-to-new Veale motor btw..
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Old 09-20-2001, 23:45   #6 (permalink)
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I did have NGK plugs in it that were only a few weeks and i changed them with motorcraft ones and the miss got worse. A bit more investigation found the connection on coil where the lead goes on was corroded and the resistance on that lead after cleaning it was too high (the leads where top gun 8mm cost $90) and all the other leads are stuffed. You can touch them with your hand and see sparks but it doesn't zap you. Having to much resistance in my coil lead and the spark needing to go somewhere broke down to coil stuffed it (you could only see the sparks coming out it was completely dark. So i know have a new plugs, leads and coil and it run sweet.

Anyone with a pre AU V8 and needs a coil be prepared for their jaw dropping price!!! They retail at about $260......good thing i get dealer price from Ford!!!!
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Old 09-27-2001, 17:38   #7 (permalink)
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OK so what sparkplugs would fit Trickflows T/Wedge heads at the mo im using the standard ones for an EDXR8 motorcraft sumfink sumfink any ideas????
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Old 09-27-2001, 21:00   #8 (permalink)
Two SC 61's = trouble
 
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Plugs for Twisted wedge..

Actually I have been meaning to as that on www.brothersperformance.com or [url]www.corral.net [url]
The plugs I have now are the equivilent to ngk with this campion number RS7YX6 the old ngk that are too short are BPR5FS they are both tappered I'm not too sure if they should be the washer type? But they all said to me they are the right one's hth
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Old 09-30-2001, 05:13   #9 (permalink)
Two SC 61's = trouble
 
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Plug length

svo 302:: checkout the length of your plug.Plug is too short.Compared to std iron heads by about 10mm.I'v recently had my heads off to cc the chambers etc.Check it out..First..Twisted Wedge reqire longer plugs ,should bring compression back ..
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