4AGE 16V engine overheat when at high speed
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06-13-2020, 10:27 AM
Post: #11
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RE: 4AGE 16V engine overheat when at high speed
Found a reasonable explanation...
Quote:Retarded will over heat it most quickly. The burn occurs over about 80 This statement didn't have any hard evidence but it does seem plausible. With the correct timing more heat is extracted in the form of mechanical work. This likely lowers the temperature of the gases in contact with the cylinder walls before they hit the exhaust valves. With retarded timing combustion is still taking place when the exhaust valves open and high temperature gases contact the head, valves and exhaust ports. This increases heat transfer to the cooling system. So yeah... severely retarded ignition timing could push the engine temperature up at constant load, and your engine will lack power. The exhaust manifold and down pipe (or headers) will be really hot. Upside is that your engine should be easy to start and idle nicely Cheers.... jondee86 The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man. |
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