NGK Dyno Summary
NGK 4306
NGK 3381
NGK 4998
NGK 2314
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Sparkplugs.com has received a lot of questions in regards to the performance gains of high performance spark plugs vs. their cost over standard nickel spark plugs. We decided the best way to decide if some of the newer technology and more expensive plugs have some true performance benefits would be to have them dyno’d. Therefore we took four different types of NGK spark plugs, sent them to an independent dyno shop, and thought we’d 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. The test plug were the NGK V-Power (standard nickel), NGK G-Power (platinum center electrode, standard nickel ground), NGK Laser Platinum (double platinum), and NGK IX Iridium (iridium center electrode, standard nickel ground). 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. All results are based on the vehicle factory-specified gap setting of .050”.
After testing, the NGK G-Power platinum plug showed a .27hp average decrease over the stock NGK nickel plug with a 1.76lb-ft average torque increase. The NGK Laser Platinum showed a 2.41hp average increase and a 3.39lb-ft average torque increase over the stock plug. The NGK IX Iridium showed a 2.76hp average increase and a 5.85lb-ft average torque increase over the stock plug, however, the IX Iridium also showed the most consistent and reliable horsepower figures.
All testing performed by Design Craft Fabrication for Sparkplugs.com
(Use the "Spark Plug Dyno Results" summary link on the left to find out how each individual spark plug performed) |
