K&N cone filter and piping.
The premise of Diesel is that it runs more efficiently on a very hot engine, compared to a gas engine. So, is the heat soak from the engine with a uncovered cone filter really matter in a diesel? I know it does for a regular gasoline engine... I think it would make it more efficient if the cone filter was pulling warm air from the engine bay and airbox area.... Thoughts?
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A diesel uses compression and heat to ignite its fuel, so I suspect a hot air intake would not have any negative effect.
I've been thinking even my 1.4T would benefit from a K&N short ram in the winter time, so Instead of sucking -20F outside air once the engine starts to warm should be getting air 50F+ or higher. Think this would help with warmup times slightly but more so help maintain heat I have already made(currently I loose heat coasting down hills, in city driving or if the heater fan is maxed out at speed less than 75mph).
I've been thinking even my 1.4T would benefit from a K&N short ram in the winter time, so Instead of sucking -20F outside air once the engine starts to warm should be getting air 50F+ or higher. Think this would help with warmup times slightly but more so help maintain heat I have already made(currently I loose heat coasting down hills, in city driving or if the heater fan is maxed out at speed less than 75mph).
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Cold air is more dense, providing a more complete burn, more power. You still want cooler air with a diesel.
+1 That is why it is better to run a Diesel with a intercooler.
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