Spark Plug Wire Resistance?
Thread Starter
Racer
Joined: May 2001
Posts: 305
Likes: 0
From: Louisiana
Spark Plug Wire Resistance?
Stock plug wires on '03 coupe measured around 725-750 ohms.
Found two stock wires that were split between the spark plug boot and cable.
So, I purchased some 10mm "expensive performance" cables and checked them for comparison to factory wires. They measured around 25-36 ohms.
Could this cause any issues when installed? I have read that they should be between 250-750 ohms.........
Found two stock wires that were split between the spark plug boot and cable.
So, I purchased some 10mm "expensive performance" cables and checked them for comparison to factory wires. They measured around 25-36 ohms.
Could this cause any issues when installed? I have read that they should be between 250-750 ohms.........
Drifting
Joined: Jan 2006
Posts: 1,726
Likes: 97
From: Castro Valley State of Insanity
Should not be a problem, more spark will be available at the plug. You probably will not see any performance increase, but can rest assured you ignition system is working at its maximum capacity. Will probably help down the road, when more miles are accrued, and plugs are not in as good of shape as they are presently.
Larry
62 Bel-Air 409
260 Eagle XP HP500EFI
2002 Corvette M6 Coupe
Larry
62 Bel-Air 409
260 Eagle XP HP500EFI
2002 Corvette M6 Coupe
Le Mans Master
Joined: Sep 2004
Posts: 6,019
Likes: 568
From: Conroe Texas
have been running msd wires in my c4 for years, 40 -50 ohms per foot, noooooo problems. the less resistance, the better the spark. with the c5, i put on callaways last week, about 80 ohms per wire and now my idle miss is gone, and it does run a tad stronger. my stock wires were in the 800 ohm range.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Originally Posted by Sleazy Rider
have been running msd wires in my c4 for years, 40 -50 ohms per foot, noooooo problems. the less resistance, the better the spark. with the c5, i put on callaways last week, about 80 ohms per wire and now my idle miss is gone, and it does run a tad stronger. my stock wires were in the 800 ohm range.
PURPLE HEART GUY!!!
Thanks for serving!!Yep!! The lower resistance is good and nothing to worry about. Like it was stated previously, you probably wont see any HP increases but it wont hurt anything!!
Bill Curlee
