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TDI Fuel Economy Discussions about increasing the fuel economy of your TDI engine. Non TDI related postings will be moved or removed.

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Old February 22nd, 2018, 15:57   #16
1854sailor
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Fuel Economy: Great!
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Old February 22nd, 2018, 16:15   #17
Vince Waldon
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Quote:
Originally Posted by PD Rig View Post
Go with what works well. Stock...
And... just like that... the two halves of this thread come together as one.
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Old February 23rd, 2018, 08:45   #18
SilverGhost
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I have the flow and particle size tests for K&N stored around here somewhere. Some truck guys got together and bought time on a flow tester. I think its on my old laptop I'll have to dig out.

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Old February 27th, 2018, 12:19   #19
Mongler98
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toss that POS away and go with a Swiss cheese mod on the air box with a MANN filter.
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Old February 27th, 2018, 12:23   #20
Midwesthick
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I rock an AFE dry flow filter with the stock setup. No complaints here but I would 100% stay away from an oiled element.
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Old February 27th, 2018, 13:57   #21
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Fuel Economy: Much better than the average car... :o)
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Originally Posted by 1854sailor View Post
Ironically that photo was taken in Sheboygan. We did a big story about that particular photo as it is a hoot. OH and BTW, the K&N IS a MAF killer.
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Old March 5th, 2018, 06:17   #22
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HA! Found the air filter test. It was posted over at Diesel Bombers truck forum. Test is an ISO 5011 and uses machine Testand Corp of Rhode Island.

Here is the link

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Old March 8th, 2018, 20:36   #23
[486]
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Originally Posted by Nevada_TDI View Post
When a rotating part that spins in excess of 100,000 RPM--sometimes up to 160,000 RPM-- the smallest amount of compressor erosion will create an out-of-balance scenario and cause a catastrophic turbo failure.
ehh, fine dust doesn't affect balance, large chunks do

same reason axial turbine engines can ingest quite a bit of fine dust, it erodes the compressor blades pretty evenly
Ever see an air filter on an aircraft? Some helicopters run oiled cloth filters that only really stop the large bits, but for the most part it's just considered and written off as normal wear.
They don't have cylinder walls and piston rings, however.
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Old March 9th, 2018, 06:44   #24
pdq import repair
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K&N filters work very well on boats and snowmobiles, and nowhere else.
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Old March 9th, 2018, 09:55   #25
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K&N filters work very well on boats and snowmobiles, and nowhere else.
I use one on my turbo 280Z (gasser, no MAF) as it is way beyond stock. They flow well and keep out rocks.
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