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Old 01-27-2019, 08:39 PM   #41
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Quote:
Originally Posted by nti06 View Post
Diesel engines are far different from gas engines. Almost all diesel engines have no throttle plate. So the engine is constantly flowing (lets say its a 7.3) the necessary CFM for a 7.3 liter engine.
A gas engine has a throttle plate, so it only flows enough air for the current rpm of the engine.
Think about how much air that K&N has to constantly filter on a diesel. Its going to filter the air but will quickly be filled with dust and dirt way faster than if it were on a gas engine.
..no difference..at slow rpm the Diesel engine uses very little air.....
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Old 01-27-2019, 08:54 PM   #42
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Ummmm; you're replying to a thread lasted posted eight years ago.....?

Not sure what "wRenty" is????

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Old 01-28-2019, 07:49 AM   #43
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Ummmm; you're replying to a thread lasted posted eight years ago.....?

Not sure what "wRenty" is????

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...it was a pop up...didnít look t the date...warranty.....there...
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Old 01-28-2019, 11:28 AM   #44
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It is a good discussion to revisit though. A reminder for all those new diesel owners that the factory air filters are the best at what they were designed to do, filter air. The aftermarkets, like the K&N, are best at moving air, but filtering, not so much. Together with the ineptness some of us have in cleaning and oiling them, or should I say over oiling them, leads to all kinds of long term engine issues caused by excessive filter oil and grit passing into the engine.
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Old 01-31-2019, 08:43 PM   #45
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Originally Posted by tjdonahoe View Post
..no difference..at slow rpm the Diesel engine uses very little air.....

A given turbo diesel climbing at 3000 rpm uses about twice the air that a normally aspirated gas engine uses at 5000 rpm according to the following calculator:



https://www.widman.biz/English/Calculators/CFM.html


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Old 02-09-2019, 09:35 PM   #46
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A given turbo diesel climbing at 3000 rpm uses about twice the air that a normally aspirated gas engine uses at 5000 rpm according to the following calculator:



https://www.widman.biz/English/Calculators/CFM.html


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My ram runs 1400 rpm....never 3000....1100-1500....like my 14.7 liter E model cat...1100- 1550 rpm...donít need any more rpm.....
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