Spark Plug Wires - Team Camaro Tech
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post #1 of 6 (permalink) Old Aug 25th, 00, 11:49 AM Thread Starter
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Does anyone have any opinions about a particular plug wire? Right now some of the brands I'm considering are Accel, MSD, Moroso, Summit and Taylor. Has anyone used Taylor wires? They're new to my dad and me. Also, does anyone know who makes the summit plug wires (like an outside comp.)or do the make their own? Has anyone had much experiance with either of these brands? My application is on a 350 out of a 75 GMC pu which is the first year with the factory HEI (yes, i have the orrg 302 in a barn). I also have headders on the car; how low can i go as far as temp rating on the wires so i can still run them near the headders? (Flow Tech headders) they have to run within about an half an inch to about an inch away, and the boot might be closer. thanks for thoughts and opinions.

1969 Z28
LeMans Blue-White Stripes
#'s matching, P-O-P
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post #2 of 6 (permalink) Old Aug 25th, 00, 04:04 PM
David Pozzi
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Many early HEI distributors were spec'ed to run a .060" plug gap.

They had so much trouble with ignition wire breakdown and leakage that the specs were changed to .045" on the tune up charts.
The underhood stickers still had the wrong .060" gap.

If the wires break down or go bad, the spark can arc down inside the cap and hit the module, damaging it.

So run .045" plug gap on any HEI.

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post #3 of 6 (permalink) Old Aug 25th, 00, 04:43 PM
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I have Flow Tech Headers on my '69 SS350 and burnt the boots on the #5 & #6 (3rd ones back on each side)plug wires constantly! I went to the shortest plugs I could find (NGK) and put protectors on each of them that look like stainless steel braiding but are made of some heat proof material. I don't think the brand of wires matter much, I used Belden.

Good Luck!

1969 RS-Z/28: DZ302, M20, 3.73, Tuxedo Black, Deluxe Black Interior, Factory Tach, Clock and Console Gauges, Rear Defrost, Spoilers, ZL2 Hood.
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post #4 of 6 (permalink) Old Aug 26th, 00, 02:27 AM
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I like Magnecor. They have a very interesting website that is good reading regardless of what brand you choose.
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post #5 of 6 (permalink) Old Aug 26th, 00, 09:04 AM
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I would use MSD 8.5 MM spark plus wires. They have ony about 40-50 OHMS of resistance per foot and as we know the less resistance the more spark energy that is delivered to the plug. I have also used Accel Super Wires but the MSD are more heat resistant and are a little better plug wire.

By the way, DAVID is absolutely correct about the spark plug gap needing to be at .045 instead of .060. Remember that at higher RPM's even Mutiple Spark Discharge systems only fire the plug ONCE. I had a high speed miss that I eliminated by closing the gap down to .045 from the .060 spec.

[This message has been edited by sr71bb (edited 08-26-2000).]
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post #6 of 6 (permalink) Old Aug 26th, 00, 09:31 AM
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I second the MSD 8.5mm!

67 Camaro LS6 454/TH400/12bolt 3.73
1989 TransAm 5.7L WS6 W/all the options
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