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Old 04-20-2010, 10:12 AM   #9 (permalink)
Xan
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Quote:
Originally Posted by AK370Z View Post
UPS screwed up my oil filter order which I placed two months ago. Then, K&N sent me two filters. I plan on using them and then switch to purolator puro1 for future. I like the pure1 because it's slightly larger as cliff aka "dad" pointed out.
Ah ok, the reason I asked because I thought you might have had some insight to which one is better.

From what I understand the Puro has a finer filter but this comes at the expense of flow rate (though still within SEA standards). Now the bypass pressure on the Puro is also somewhat higher then the K&N.
So allthough it filters better just from a filter performance point of view and therefore does good in tests, I'm wondering how good it is for our engines, especially when you drive them under high load for a longer time.

I wasn't able to find the exact specs for the two different filters and I don't know if this is correct, but this is what I found for similar filters:

Purolator PureOne PL34631
* Average largest pore size: 42 µm
* Smallest pore size: 10 µm
* 30W 70F Oil flow @ 10psi: 5.3 oz per minute

K&N 3002
* Average largest pore size: 63 µm
* Smallest pore size: 27 µm
* 30W 70F Oil flow @ 10psi: 14.7 oz per minute
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