12/16/2023 0 Comments Brisk spark plugs malaysia![]() ![]() I attribute that to more efficient combustion. I noticed the engine was smoother and quieter at high speeds, and the engine loads were showing lower on hills. Under controlled conditions I ran them for 750 miles, and the results were consistently higher mpg and lower fuel trims. After installing the BRISK plugs I notice a reduction in fuel trims and at times there was significant reduction in demand in fuel. I ran the OEM plugs for 250 miles under controlled conditions, and achieved 30.7mpg, and slightly positive fuel trims. More often than not it was 28-29mpg with slightly varing conditions. The best mileage I saw on the highway was 30mpg. I had AC Delco OEM plugs in my 2.4L and were only 6 months old. The spark is downward facing to the combustion chamber, and no ground electrode to block or shield the spark. I found a plug that eliminate the guess work on orientation and indexing. I read as much I could find on optimal orientation, but found there was no consensus, and the fact that each engine may exhibit different intake air/fuel mixture characteristics, swirl patterns, and flame front propagation. ![]() The reason this is GDI, combustion chamber design changes, center fired plugs, coil on plug ignition systems and advanced timing and fuel management systems that can detect slight changes and make adjustments on the fly. They have demonstrated more complete combustion and as a result high efficiencies in engines based on plug types and orientation. In the past decade SAE has published papers on indexing in modern engines. Sparkplug indexing was well known by racers but they were dealing with high performance engines. The Fuel Injection and ignition system were very primitive, typical engine compression was lower, and mostly two valves per cylinder. I never saw any difference at the time for several reasons. I had Datsun 280ZX that I had rebuilt and modified the engine. 30 years ago I spent money on numerous sparkplug types, and to see if it made much of a difference in performance and economy. ![]()
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