plugs and wired
Joined: Oct 2007
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RE: plugs and wired
From a post on DodgeTalk..
Sparkplugs.com has received a lot of questions in regards to the performance gains and reliability of newer spark plug technology. They decided the best way to decide if some of the newer technology is just a gimmick, or if they have some true performance benefits would be to have them dyno`d. Therefore we took seven different types of spark plugs (Champion stock nickel, NGK nickel, NGK single platinum, NGK double platinum, NGK IX iridium, Denso iridium, and Pulstar pulse plugs), sent them to an independent dyno shop, and thought we would share the information with you.
The test vehicle was a stock 2005 Dodge Neon SRT-4, provided by Manny Gomez, a member of SRTForums.com (screen name: hawkable). The test was performed on a Mustang Dyno. We completed three runs for each plug in a cold, warm and hot state. We then averaged these runs to find the final average horsepower and torque numbers. The link below leads to the page containing all the dyno sheets. All results are based on the vehicle factory-specified gap setting of .050", except for the Pulstar plug, which had a maximum manufacturer recommended gap of .045"
After testing, the Pulstar plug had a horsepower advantage, having both the highest peak horsepower (205.95hp) and the highest average horsepower (204.04hp). The NGK Iridium IX showed the second highest average horsepower (203.78hp), and highest average torque (230.27 lb-ft), however, the NGK Iridium IX also displayed the most reliable and consistent horsepower figures. The Denso iridium showed the highest peak torque (235.96 lb-ft), third highest average horsepower (203.67hp), and second highest peak horsepower (205.51hp) and average torque (229.74 lb-ft).
Sparkplugs.com has received a lot of questions in regards to the performance gains and reliability of newer spark plug technology. They decided the best way to decide if some of the newer technology is just a gimmick, or if they have some true performance benefits would be to have them dyno`d. Therefore we took seven different types of spark plugs (Champion stock nickel, NGK nickel, NGK single platinum, NGK double platinum, NGK IX iridium, Denso iridium, and Pulstar pulse plugs), sent them to an independent dyno shop, and thought we would share the information with you.
The test vehicle was a stock 2005 Dodge Neon SRT-4, provided by Manny Gomez, a member of SRTForums.com (screen name: hawkable). The test was performed on a Mustang Dyno. We completed three runs for each plug in a cold, warm and hot state. We then averaged these runs to find the final average horsepower and torque numbers. The link below leads to the page containing all the dyno sheets. All results are based on the vehicle factory-specified gap setting of .050", except for the Pulstar plug, which had a maximum manufacturer recommended gap of .045"
After testing, the Pulstar plug had a horsepower advantage, having both the highest peak horsepower (205.95hp) and the highest average horsepower (204.04hp). The NGK Iridium IX showed the second highest average horsepower (203.78hp), and highest average torque (230.27 lb-ft), however, the NGK Iridium IX also displayed the most reliable and consistent horsepower figures. The Denso iridium showed the highest peak torque (235.96 lb-ft), third highest average horsepower (203.67hp), and second highest peak horsepower (205.51hp) and average torque (229.74 lb-ft).
Legend
Joined: Jul 2003
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From: United States
RE: plugs and wired
My MSD coil lasted about 3 years on my '99 Neon R/T and another 3 1/2 years on my SRT-4 before it craped out, so they're just fine in my book.
The plug test is skewed and invalid since allthe plugs were not gapped the exact same. Changing a plugs gap can and will change it's performance and thus the engines performance. In the case where the one plug type would exceedit's maximum recommended gap to reach the car manufacturers' recommended gap, they should have closed the gap on the other plugs tested to the same .045 gap to make the test accurate and valid.
I use MSD Super Conductor plug wires and Champion Iridium plugs. The MSD wires are around 40 ohms per foot of resistance and even the longest plug wire on the SRT-4 is only about 6 inches long which is 20 ohms or less resistance.
The plug test is skewed and invalid since allthe plugs were not gapped the exact same. Changing a plugs gap can and will change it's performance and thus the engines performance. In the case where the one plug type would exceedit's maximum recommended gap to reach the car manufacturers' recommended gap, they should have closed the gap on the other plugs tested to the same .045 gap to make the test accurate and valid.
I use MSD Super Conductor plug wires and Champion Iridium plugs. The MSD wires are around 40 ohms per foot of resistance and even the longest plug wire on the SRT-4 is only about 6 inches long which is 20 ohms or less resistance.