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Selecting the Right Heat Range. Working closely with engine manufacturers, Autolite engineers have developed plugs in many heat ranges to suit all engine applications. They range from COLD through MEDIUM; and HOT. to EXTREMELY HOT. Rules for selecting the correct plug are to follow manufacturer’s specifications.
- Spark Plug Heat Range
Working closely with engine manufacturers, Autolite ®...
- Spark Plug Heat Range
29 Δεκ 2014 · Autolite Heat Ranges - The larger the last digit in the part number, the hotter the plug is. Example a AR3935 (good street/strip plug) is hotter than a AR3932 plug which is very cold used for lots of nitrous.
11 Μαΐ 2018 · Many race plugs like the Autolite AR series plugs come with side-cut ground straps that are much shorter and also eliminate shrouding of the spark into the combustion chamber. This is equal in importance to the heat range question.
Working closely with engine manufacturers, Autolite ® engineers have developed plugs in many heat ranges to suit all engine applications. Here you can enter the make, model, and year of your car to find the best spark plug for you in the correct heat range.
The webpage provides a heat range conversion chart for Autolite spark plugs.
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)
Autolite® Spark Plug Heat Range Chart Tableau des températures des bougies Autolite ... 2399 Resistor. 2456 Non-resistor. 8251 Xtreme Start. 8252 Xtreme Sport. 8291.060" Gap. 8292 Series air gap. 8294 Power tip. 8296 .040" gap. 8298 Standard tip.
