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1 paź 2004 · Spark plug heat range is a function of your driving conditions. For all Corvette SBs regardless of power rating or type of ignition, AC heat range "5" or equivalent is best for street and highway driving.
11 maj 2018 · There are increasingly greater inputs into selecting the proper spark plug design, application, and heat range in order to employ the best plug for the engine. Asking lots of questions and seeking professional guidance from engine builders can help with the process.
The spark plug is heated during combustion and must dissipate that heat to the cylinder head at a certain rate to avoid overheating the ceramic firing end. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine.
The AC Delco Spark Plug Decoder Table. Prefix and suffix letters are used to identify a specific type plus the numbers relate to thread size and heat range. For example, the R45TS spark plug shown is: R - Resistor. 4 - 14 mm Thread. 5 - Heat Range (range 1-5 start with a 3)
Using the correct heat range is key to getting the performance you want out of your engine. For most vehicles, the manufacturer-recommended spark plug and heat range is the best option. Consult your owner’s manual for the right spark plug for your car.
1. Stay cool enough to avoid pre-ignition and/or electrode destruction. 2. Run hot enough to burn off combustion deposits that would otherwise collect at the firing tip. 3. Adapt to specific engine characteristics and widely varying driving/load conditions.
28 cze 2024 · The heat range of a spark plug refers to its ability to dissipate heat from the combustion chamber. A lower number indicates a hotter plug that retains more heat, while a higher number signifies a colder plug that dissipates heat faster.
