[DeTomaso] Data for K&N filters

[Garth Rodericks]

Years ago I recall reading a magazine dyno test (Hot Rod? Car Craft? or one of those) of a typical round K&N filter against a comparable paper filter, but I can't find it online.  I recall they found the K&N didn't provide any additional horsepower against a stock filter when new, however after a limited time/miles (simulated by adding dust to the filters on the dyno) they found the K&N provided a horsepower increase over the paper filters as their flow capacity was greatly reduced pretty quickly as they began to collect dirt. But, they also provided more protection for your engine!  Again, this is just from memory, and I have no interest in promoting K&N. I do have a K&N filter on my Pantera and have thought about just stocking up on inexpensive paper filters and changing them more regularly as the K&N it seems to get dirty quite quickly and it's a PITA to clean.

Here are some other resources:http://www.knfilters.com/filter_facts.htm - Yes, this is K&N's website, but there are some links to other resources (which are favorable toward K&N of course)

https://www.bobistheoilguy.com/airfilter/airtest3.htm - Bob is the oil guy filter test results - a good read.


I couldn't find any other resources online worth reading other than Dan's post from David Vizard's book "How to Build Horsepower" (Thanks for the link Julian).https://books.google.es/books?id=OAw1GDB0kN0C&printsec=frontcover&hl=es#v=onepage&q&f=false

Everything else online is just miscellaneous drivel on other car forums with people arguing back and forth.

Cheers!
Garth
#4033
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   Years ago I recall reading a magazine dyno test (Hot Rod? Car Craft? or
   one of those) of a typical round K&N filter against a comparable paper
   filter, but I can't find it online.  I recall they found the K&N didn't
   provide any additional horsepower against a stock filter when new,
   however after a limited time/miles (simulated by adding dust to the
   filters on the dyno) they found the K&N provided a horsepower increase
   over the paper filters as their flow capacity was greatly reduced
   pretty quickly as they began to collect dirt. But, they also provided
   more protection for your engine!  Again, this is just from memory, and
   I have no interest in promoting K&N. I do have a K&N filter on my
   Pantera and have thought about just stocking up on inexpensive paper
   filters and changing them more regularly as the K&N it seems to get
   dirty quite quickly and it's a PITA to clean.
   Here are some other resources:
   [1]http://www.knfilters.com/filter_facts.htm - Yes, this is K&N's
   website, but there are some links to other resources (which are
   favorable toward K&N of course)
   [2]https://www.bobistheoilguy.com/airfilter/airtest3.htm - Bob is the
   oil guy filter test results - a good read.
   I couldn't find any other resources online worth reading other than
   Dan's post from David Vizard's book "How to Build Horsepower" (Thanks
   for the link Julian).
   [3]https://books.google.es/books?id=OAw1GDB0kN0C&printsec=frontcover&hl
   =es#v=onepage&q&f=false
   Everything else online is just miscellaneous drivel on other car forums
   with people arguing back and forth.
   Cheers!
   Garth
   #4033

References

   1. http://www.knfilters.com/filter_facts.htm
   2. https://www.bobistheoilguy.com/airfilter/airtest3.htm
   3. https://books.google.es/books?id=OAw1GDB0kN0C&printsec=frontcover&hl=es#v=onepage&q&f=false