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I have a K&N filter and I know it's killing my turbo. Before anyone else says it, yes, I am getting rid of it. But I think it may have damaged my turbo to where I don't think I'm getting as much boost as I used to. Could and did this happen to me?
What kind of K&N filter is it? Is it a drop-in for the stock box?
I have a FIPK K&N intake setup on my truck, and have heard all the stories about how the K&N don't filter, but mostly about the drop-ins for stock air boxes. I just checked my intake pipe and turbo last weekend and I think I put more dust in there trying to wipe it with a white cloth to see how dirty it was since it was so clean. I just would like to know what you have to know whether I should be concerned about mine failing on me or not.
Thanks.
farmb0y, I have the troublesome drop-in filter. Quadzilla, since I don't have gauges, I don't how I've lost or how much I'm getting now. It's just that it doesn't feel the same anymore.
One of the issues with the K&N FIPK is the pinholes that can form in the filter after cleaning. Have I ever personally seen the pinholes? No. Have I heard about them from several diesel mechanics? Yes. Do I know of a single diesel hot rod mechanic that runs a K&N on his truck? No.
Good enough for me.
Toreador Diesel- Have you checked your EBPV and/or cat for blockage?
One of the issues with the K&N FIPK is the pinholes that can form in the filter after cleaning. Have I ever personally seen the pinholes? No. Have I heard about them from several diesel mechanics? Yes. Do I know of a single diesel hot rod mechanic that runs a K&N on his truck? No.
Good enough for me.
What would cause those pinholes? Improper cleaning or just from being reused? I want to try and avoid defaulting my air filter anytime soon since I'm limited on the funding to get a new set up.
The components of the catalytic convertor can "melt" under certain conditions, and form a "crud". This melted ball of crud can/will restrict the amount of air that can pass through the cat. Gutting or removal are the only options to get rid of the problem.
The EBPV can stick in a partially closed position, which would also restrict airflow.
Either of these restrictions would rob you of a lot of power, and cause your EGT's to climb considerably. Without gauges, you probably wouldn't be able to see it, though.
The pinholes in the K&N filter happen after cleaning, though I'm not sure if it's because of improper cleaning, or merely "wear and tear". I've never bothered to investigate.