Well real world experience has different results than all those tests show. I ran a conical K&N on my 7.3 PS for over 70k miles and did oil analysis on every oil change. Guess what?, every test came back at or below industry standards for silca(that's dirt to most folks) and the same for other elements found in engine oils. Did I gain mpg or HP?? don't really know but I felt I got as good filtration as a paper element. Now remember I had the CONICAL K&N not the oem drop in.
JMHO...........
Pual B
2001 Excursion-Powerstroke Diesel 2000 Honda CRV 2006 Flagstaff 31' - 7.5k lbs. 2004 Two Honda EU2000i's/parallel cables/extra fuel tank
There is plenty of scientific data posted before me. What I can tell you is after running a K&N filter, I found dust in my intake tube after the filter that wasn't there before.
Oil analysis came back with low silicon (dirt) levels though.
I don't claim to have all the answers, but I can tell you, I won't be running a K&N on my new truck.
My gadgets work...... Im talking the programmer and exhaust...
but that said, I LEAVE the stock air filter in on my diesel...
Delaine and Lindy wrote: There is your answer, Gadgets don't work they are just Snake Oil. GBY...
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lots of charts/graphs floating around proving what ever is needed. I would go with actual experience of how the products works on your particular vehicle. I run the AFE Pro 7 on the Cummins for lower EGTs and wasn't concerned with the great mpgs the Cummins gets. It works great at about a 100 degree drop in temps while on long hard pulls. Did my own little test by sending in two oil samples A and B. A sample was with the stock Mopar filter and B was the AFE. The lab not knowing about the different filters said B had the better numbers for the Cummins. Dang good snake oil product if it outperforms the stock product. Do your own testing.
Jim
'03 2500 Dodge/Cummins HO 3.73 6 speed manual Jacobs
'97 Park Avanue 28' with two slides
With ANY panel replacement filter on a turbo diesel, one very important issue that doesn't often get mentioned is the mechanical strength of the filter itself.
Will the panel distort in the center under load (high suction by the turbo), such that the perimeter seal is drawn in just enough to create a path of less resistance for dirt to flow around the filter altogether?
This has happened a lot. It even happens when the wrong ACDelco Factory air filter is used. Since the GM truck airbox is dimensioned the same for some years between gas and diesel, a high capacity ACDelco filter designed for the 8.1 liter gas engine will drop right into some 6.6L diesel airboxes and fit perfectly. However, the part number for the gas filter is different, because the construction of the filters differ.
The filter for the diesel has addtional glue beads between the pleats that stiffen the entire panel, making it less susecptible to distortion under extreme turbo suction, such as pulling a trailer uphill at full power. GM even has a service message on this issue, imploring dealers to be CERTAIN to install the filters designated for diesel applications, even when the gas filter fits.
Ford had the same issue several years ago in the 7.3L diesel. In Ford's case, the initial panel filter designed for the diesel STILL distorted under load, and was quickly updated with a stiffer one. The airbox itself was updated a couple more times, and several design iterations of filters were released... with glue beads between pleats on the dirty side, stiffer sceening on the clean side of the pleats, and improved gasketing materials around the perimeter seal. A special process and manufacturing machinery was developed to emboss the pleats with 3 dimensional structure to keep them separated when under turbo load. That's how much of an issue the right flat panel is.
Evenutally, Ford went with an entirely different type of (very stiff) PowerCore media filter made by Donaldson.
So, putting filter media initially designed for a naturally aspirated gasoline engine into the airbox of a turbo diesel, whether K&N or ACDelco, has it's risks. Sometimes the dirt intrusion isn't what got through the filter media... it is what got AROUND the filter media due to insufficiently structured panel distortion under high loads.
Something to think about. In fact, after already paying $30K to $50K for professional engineers to think about it, why not just go with the results of their efforts and use the part designed for the application?
BigToe wrote: With ANY panel replacement filter on a turbo diesel, one very important issue that doesn't often get mentioned is the mechanical strength of the filter itself.
Will the panel distort in the center under load (high suction by the turbo), such that the perimeter seal is drawn in just enough to create a path of less resistance for dirt to flow around the filter altogether?
This has happened a lot. It even happens when the wrong ACDelco Factory air filter is used. Since the GM truck airbox is dimensioned the same for some years between gas and diesel, a high capacity ACDelco filter designed for the 8.1 liter gas engine will drop right into some 6.6L diesel airboxes and fit perfectly. However, the part number for the gas filter is different, because the construction of the filters differ.
The filter for the diesel has addtional glue beads between the pleats that stiffen the entire panel, making it less susecptible to distortion under extreme turbo suction, such as pulling a trailer uphill at full power. GM even has a service message on this issue, imploring dealers to be CERTAIN to install the filters designated for diesel applications, even when the gas filter fits.
Ford had the same issue several years ago in the 7.3L diesel. In Ford's case, the initial panel filter designed for the diesel STILL distorted under load, and was quickly updated with a stiffer one. The airbox itself was updated a couple more times, and several design iterations of filters were released... with glue beads between pleats on the dirty side, stiffer sceening on the clean side of the pleats, and improved gasketing materials around the perimeter seal. A special process and manufacturing machinery was developed to emboss the pleats with 3 dimensional structure to keep them separated when under turbo load. That's how much of an issue the right flat panel is.
Evenutally, Ford went with an entirely different type of (very stiff) PowerCore media filter made by Donaldson.
So, putting filter media initially designed for a naturally aspirated gasoline engine into the airbox of a turbo diesel, whether K&N or ACDelco, has it's risks. Sometimes the dirt intrusion isn't what got through the filter media... it is what got AROUND the filter media due to insufficiently structured panel distortion under high loads.
Something to think about. In fact, after already paying $30K to $50K for professional engineers to think about it, why not just go with the results of their efforts and use the part designed for the application?
In this case GM list same part # for both engines. GM #88937527 Delco #A2032C.
It seems to me that putting on an after-market air filter on the intake of a diesel, makes no sense. The reason that I say that, is because the turbo compresses the air in the intake chamber so there is allows positive air pressure to feed to the engine. The turbo is quite capable of sucking all the air it needs to provide that pressurized air.
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