champion spark plug heat range chart

Choose your next Champion from the range … NOTE: Due to differences in design and materials the plugs listed in cross reference section are not exactly alike. Heat Range Cross Reference Table | … Harley Spark Plug Cross-Reference Below is a cross-reference list of spark plugs for use in most Harley models. We offer the latest technology in spark plug design & performance that can help you improve your engine performance & fuel economy. It is the measure of how fast the spark plug tip dissipates combustion heat. The plug type on a spark plug is composed of a basic “Heat Range’’ number with letters and numbers to indicate major features of the plug design. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. A colder plug would be # R5671A-11 (heat range 11), a hotter plug would be # R5671A-9 (heat range 9). “Heat range” is a rough guide to how hot the plug will remain under the anticipated motor conditions. … With modern sophisticated engines, new ceramics and superior alloys for spark plugs, the job of selecting a plug for a specific engine has become more critical. March 2014. These are displayed as a 2 or 3 digit number after the hyphen. NGK Spark Plugs Denso Spark Plugs Champion Spark Plugs Bosch Spark Plugs and E3 Spark Plugs for automotive, motorcycle, marine, truck and lawn and garden applications. Chainsaw & Cut-Off Saw Spark Plug Application Chart Use this Chainsaw Spark Plug Reference Chart to find the right spark plug for your gas powered chainsaw or cut-off saw. For Champion, higher numbers are hotter. I used to use D-16's but found them to be less than desirable. When dealing with Bosch spark plugs, the heat range is again designated by the number in the middle of the part code; a “W8DC” has a heat range of 8 and a “W6DC” a heat range of 6. Champion D-21's are the only plug I use. The world leader in spark plug technology for over 80 years. Q: What size spark plug does Tempest® manufacture? Spark plugs are heated by the burning fuel in the motor, and coated with the fuel's combustion products: soot, oil, etc. The D-21's have provided good service for almost 11 years for me so I will stay with them. 12 page guide by Champion Sparking Plug Co. Ltd.'s Competition Department, 1973. Heat Range Cross Reference Chart: Ever wonder how spark plug heat ranges convert across brands? For example, R6120-85 has a 8.5 heat range and R6120-105 has a 10.5 heat range. As a result, more heat stays in the ceramic firing end and less is … Unfortunately they differ between brands as to whether a higher number is hotter or colder. I tried the NGK's but didn't like them either. The Champion chart I have lists the following plugs, in order from hottest to coolest : RN16YC5 RN14YC R/N12YC R/N11YC iridium upgrade stock no. • HOT PLUG Why is Heat Range Critical? Thread size: Heat range: NGK Standard type: NGK Projected Type : Champion Y-projected type G-gold palladium electrode: AC S-projected type: Denso (DS) Bosch: KLG P-projected type: Auto-Lite: https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html If you need the NGK Spark Plug list, click here. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. 2. Choose a brand from the list below then locate the spark plug for your specific saw by model number. Example a AR3935 (good street/strip plug) is hotter than a AR3932 plug which is very cold used for lots of nitrous. You never forget your first Champion ®. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. Ferodoracing is a leading manufacturer in high performance automotive products including braking systems, clutches, spark plugs and brake pads. The only difference between plug RCJ6Y and RCJ8Y lies in their heat ranges. Champion Heat Ranges - Typically Champion numbers in the same series the larger the number the hotter the plug. Racing Heat Range and Tuning Guide. Knowing which plug to use in a particular engine can be difficult, as the plugs are very similar. platinum upgrade stock no. 2544 is the coldest plug in that plug family, and 2546 is the hotest. According to Champion Spark Plugs, for normally aspirated, gasoline-fueled engines, a good rule of thumb is to go about one heat range colder for each … Most spark plug manufacturers recommend that the tip temperature remain between 500-850 degrees Celsius. Spark Plug Cross Ref. NGK Denso Champion Heat Range Equivalents A Spark Plug's heat range is a measure of it's ability to conduct heat away from its firing end. pgr7a 3200 n/a - igr7a 6687 plfr6a-11 7654 n/a - ilfr6t11 4904 pltr6a-10g 3587 n/a - iltr6a-13g * 3789 plzfr6a-11s 5987 n/a - ilzfr6d11 1208 plzkbr7a-g (disc'd) 5843 n/a - ilzkbr7b8dg 95770 FIRING END DESIGN HEAT RANGE / APPLICATION SUPPRESSOR / SHIELDING SHELL DESIGN F B 77 W P C C FB77WPCC Letter Description The relationship between the spark plug temperature and vehicle speed and heat range is expressed with a graph like that in the figure. When those conditions change beyond certain limts, the spark plug's heat range should change as well. Refer to the downloadable Sparkplug Chart for a list of plug recommendations or purchase Sparkplugs Volume 2.: To download or view a detailed chart of recommended sparkplugs for cars from 1900-1960 click on Plugchart below: Introduction. A: Please refer to the Tempest application chart.There are several things you will need to know as most engines have several different spark plugs approved. ngk spark plug upgrade chart original plug stock no. Spark Plug Heat Range Cross Reference . Heat Range: Cold (59) Champion Spark Plug Guide (GIF) Champion Heat Range Guide (GIF) Champion Conversion Chart (GIF) Spark Plug Gapping Instructions (GIF) Autolite, Champion, NGK Cross Reference Chart (PDF) Item Details.750" Reach, 5/8" Hex Notes. ... Due to differences in design and material, plugs produced by various manufacturers do not have exactly the same heat range. The optimal temperature to remove carbon deposits from the tip of the spark plug is 450º - 500ºC. Example: R5671A-10 has a heat range of 10. Champion makes a wide range of spark plugs, including the RCJ6Y and the RCJ8Y types. Longer lasting than platinum spark plugs, Iridium “S” plugs resist lead attack and provide better scavenging than standard platinum plug designs. Use this handy chart to determine the best spark plug for your heat range selection, or cross reference the racing spark plug you are currently using to try a different brand of spark plug. You will need to know your harness B-nut size. If it the heat range is too hot, your engine could experience detonation, pre-ignition, or power loss. Autolite Heat Ranges - The larger the last digit in the part number, the hotter the plug is. A COLDER or 'harder' spark plug is more suited to a hotter running engine (i.e. Well, below you will find a “heat range cross reference chart” that shows comparisons between 5 major brands of spark plugs. Most spark plug manufacturers recommend that the tip temperature remain between 500° C … A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. Q: What spark plug should I use for my engine? Champion spark plugs stand up to high temperatures, pressures, and deposits. If the heat range is too cold, the spark plug will be unable to properly self-clean by burning off carbon deposits. In these instances, a colder plug may be needed. Don't just ask for a spark plug, insist on NGK. Most spark plug manufacturers indicate a spark plug's heat range within the part number; Bosch, Denso and NGK also place the heat range … Spark Plugs . If the heat range is too cold, the spark plug will be unable to properly self-clean by burning off carbon deposits. If it the heat range is too hot, your engine could experience detonation, pre-ignition, or power loss. With Champion spark plugs, a higher number in the middle of the part designation designates a hotter spark plug. It must do this in a controlled manner that will: 1. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. Notes. 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