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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
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.
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.
Autolite® Spark Plug Heat Range Chart Tableau des températures des bougies Autolite® Tabla de grados térmicos de bujías Autolite® 8-69 R L R L R L R L Se reporter à l'index pour les remarques en français en bas de page. Ver el índice para las páginas de notas de pie de página en español.
Head manufacturer’s original equipment heat range starting point or equivalent plug shown in bold print. * Engine performance modifications, fuel requirements, comp. ratio, domed pistons, high speed driving conditions, etc. may require colder spark heat range or different
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.
The webpage provides a heat range conversion chart for Autolite spark plugs.
