Does size matter???
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,366
Likes: 7
From: Las Vegas NV
Does size matter???
Okay, probably not what you were thinking, but does the size of the spark plug wires matter? That is, if I use 7.0 or 7.5 vs. 8.0 or 8.5 mm, will the larger diameter deliver better performance?
Thanks.
Thanks.
Le Mans Master
Joined: Jan 2001
Posts: 6,938
Likes: 1
From: San Diego CA
Depends who you talk to and what components your running. I have 8mm Taylor wires on a Pertronix II system yet I could have used 7mm with no difference. If you are using a MSD 6AL box they call for 9-10mm. Now with that all siad I know that resistance is proportional to current yet alot of people are duped by the monster wire "over-kill" selling technique. I have 500 feet of monster cable in my house becuase I was told "you need it" and a simple 16 guage would have worked, same goes for cars. Most fall into
"Man you need those 250mm wires with a 1,750,000 Volt 1250 AMP
MSD distributer for your stock SB"
See Apr 04 SC magazine on ignition overkill article.
For those who are going to argue my statement please show dyno pulls with 10mm versus 7mm wires or timeslips assuming all other variables remain the same.
"Man you need those 250mm wires with a 1,750,000 Volt 1250 AMP
MSD distributer for your stock SB"
See Apr 04 SC magazine on ignition overkill article.
For those who are going to argue my statement please show dyno pulls with 10mm versus 7mm wires or timeslips assuming all other variables remain the same.
Last edited by Cali,68,L-79; Dec 27, 2004 at 05:03 PM.
Race Director
Joined: Jul 2002
Posts: 11,593
Likes: 173
From: Clayton NC
I went with 8mm just to upgrade from 7mm stock style wires that I was running. I'm about to upgrade to a 6AL MSD box and was not aware of the 9 or 10mm requirement. Cali, Do you know if running 8mm wires with that box will cause a determental effect on the wires or box?
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Is 7, 8 9mm that the size of the wire inside or the overall outside diameter of the cable. I was told ( now I don't know that's why I am asking ) that the bigger wires just have more insulation on them for more severe conditions and the actual conductor inside is about the same size 
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Burning Brakes
Joined: Nov 2004
Posts: 1,028
Likes: 0
From: San Antonio Texas
i've got an MSD digital 6 ignition and i'm running 8 mm Moroso Blue Max wires. no problem. i called MSD before installing the box and tech support said ANY spiral core wires would work. they do recommend low resistance wires for peak performance but that's another issue.
Drifting
Joined: Nov 2002
Posts: 1,951
Likes: 1
From: Shore NJ
Originally Posted by Motor City Vette
I'll be running a Pertronix Flamethrower Ignitor II with the Flamethrower II coil.
