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Is there a big difference b/t 8mm & 9mm spark plug wires?

Posted By: ChazGotAZ28 On: 12-21-2007 @ 01:28:53         Reply | Edit
Question is pretty straight forward, since I'm putting on NAAAAAWS I'm changing the plugs and figured I would change the wires to (I think they may still be the stockers )I'm just wondering if going with 9mm will be more beneficial to the n2o or the stroker.
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Check out my car at http://www.cardomain.com/id/chazgotaz28

Posted By: cheddar On: 11-18-2006 @ 01:36:02     Reply | Top | Edit
I'm gonna say that if you're not having any issues with the ones you curently have, then it's pointless to replace them, unless they are the stockers. If they're screwing up and you need to replace them, then go for it if you think you really need them that big but I think it's probably overkill for your set up. The old 94 ran on 8mm wires just fine.
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2002 Silver Z28 M6 Nitrous Express NXL direct port kit, Carbon Fiber Lid, FTRA, Smooth bellows, SLP long tubes, No cats, Flow Master exhaust, Eibach Pro kit, Hurst shifter, LS7 clutch.
[ Edited on 11/18/2006 @ 01:37:23 ]

Posted By: ChazGotAZ28 On: 11-18-2006 @ 01:42:52     Reply | Top | Edit
Cool I'm thinking my setup is going to be pretty close to how yours was when I'm done (but a little faster ) so if you ran fine with the 8mm than I'm sure mine will to.
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Check out my car at http://www.cardomain.com/id/chazgotaz28

Posted By: cheddar On: 11-18-2006 @ 01:47:58     Reply | Top | Edit
but a little faster

HA! Faster than when I owned it, or faster than the new owner has it running now? He's doing mid 10s and going for the single digits next year.

I'm sure the 8mm wires will work fine. They'll fit better in the stock holders too if you're still using those. The 9mm wires, not so much.
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2002 Silver Z28 M6 Nitrous Express NXL direct port kit, Carbon Fiber Lid, FTRA, Smooth bellows, SLP long tubes, No cats, Flow Master exhaust, Eibach Pro kit, Hurst shifter, LS7 clutch.

Posted By: ChazGotAZ28 On: 11-18-2006 @ 01:57:43     Reply | Top | Edit
We'll see how fast I can make her, the bottom end is forged so I may up the anty on the spray to maybe a 200 shot. My best time so far with a hotcam is 12.09 so I'm betting the extra hp with the spray, heads and cam may get me into the low 11's maybe 10's. Still I must admit your old 94 was a bit of inspiration for my planned set up.
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Check out my car at http://www.cardomain.com/id/chazgotaz28

Posted By: cheddar On: 11-18-2006 @ 09:30:41     Reply | Top | Edit
Man there are lots of factors that start coming into play when you start dipping down that low on ET. For a daily driven or mostly street car, I'll say it really starts getting tough past that 12.0 mark. It'll take a lot of work, but you'll get it there.

Check your post in the "Parts Wanted" section.
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2002 Silver Z28 M6 Nitrous Express NXL direct port kit, Carbon Fiber Lid, FTRA, Smooth bellows, SLP long tubes, No cats, Flow Master exhaust, Eibach Pro kit, Hurst shifter, LS7 clutch.

Posted By: Injuneer On: 11-18-2006 @ 10:52:56     Reply | Top | Edit
The only difference between plug wire diameters is the thickness of the insulation.... the inside conductor is the same. The extra millimeter going from 7mm (stock) to 8mm, or 8mm to 9mm simply means its got an extra 0.02" insulation on it.

The stock LT1 wires were 7mm Packard, and they were actually very good wires.
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Fred - 1994 Formula - 381ci / 275-shot N2O / TH400+GV
Mods: http://members.aol.com/InjuneerZZ/Mod.htm
Step into my office: http://www.injuneer.com/images/photos/Interior/DCP03464a.jpg

Posted By: blueta On: 11-18-2006 @ 16:41:07     Reply | Top | Edit
It's just the insulation that makes the wires bigger in diameter.
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[ Edited on 11/18/2006 @ 16:56:19 ]

Posted By: useful_idi0t On: 11-18-2006 @ 16:55:58     Reply | Top | Edit
freds right about the wires, what you want is lower resistence per foot. msd's are around 50 ohms per foot, which is pretty good.
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1995 Red Firebird Formula
TF Aluminum Elbow, SLP Fan Switch, Lingenfelter CAI, LT1 Scanmaster



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