12 STANDARD Fireball Glow Plugs , rc plug r/c,
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GLOW PLUG SELECTION Glow plug selection is a trial-and-error process. It depends on several factors: engine, fuel, propeller (if flying),motor to car/truck size/weight and weather conditions. The general rules are: The hotter the fuel (nitro content), the colder the plug should be. The bigger the prop, or heavier truck/car weight ratio to motor size, the colder the plug should be. The colder the weather, the hotter the plug should be. The smaller the engine, the hotter the plug should be. The glow plug controls the "timing" of combustion. If the plug type is too "hot", combustion starts too soon -- and much of the pressure energy from the burning fuel gets wasted in pushing down on a piston head that's still coming UP. If the plug is too "cold", combustion doesn't begin soon enough, and pressure energy gets wasted by being blown out the exhaust port. The reason that smaller engines require hotter glow plugs is that large engines have less cooling area in proportion to their displacement. We've been around since 1948! Please read everything. T is a crossover chart at the bottom left. In this auction each quantity is for 1 card of 12 STANDARD glow plugs ............. make sure and google fireballglowplugs to make sure i have the cheapest prices on the net Don't Pay High Prices for Glow Plugs Again. These WILL work in MOST
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