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K&N worth it over a Purolator
#1026626
07/05/11 05:45 PM
07/05/11 05:45 PM
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Joined: Jan 2009
Posts: 124
Pittsburgh, PA
bigdaddywiz
OP
member
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OP
member
Joined: Jan 2009
Posts: 124
Pittsburgh, PA
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is it worth getting the K&N filter over the basic Purolator for my 340 intake and 44bl swap onto my 318? would i even see any performance gain?
thanks
Last edited by bigdaddywiz; 07/05/11 05:45 PM.
73 Road Runner
09 Challenger R/T
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Re: K&N worth it over a Purolator
[Re: bigdaddywiz]
#1026627
07/05/11 06:38 PM
07/05/11 06:38 PM
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Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
Chris2581
master
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master
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
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No.The paper element works just fine.
Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
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Re: K&N worth it over a Purolator
[Re: Mr.Yuck]
#1026633
07/05/11 11:56 PM
07/05/11 11:56 PM
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Joined: Jan 2003
Posts: 21,525
N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,525
N.E. OHIO, USA
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Quote:
I'll say No. It's been shown over and over the K&N air filters flow no better than a paper element. Thing is to get the right size. But then again if you wanted any performance gain you would have went 440 and be done with it.. not much difference in 318 or 340... 
I disagree. There is no paper air filter that will flow more or even as much air as a properly oiled K&N air filter. I’ve tested air filters from paper to foam on our dyno and a K&N always pulls more horsepower on the dyno than any other type of air filter. The only thing that comes close is if you take a dual element foam filter (course outer and fine inner foam) and cut off the inner fine stage foam but then the filtering quality goes away and you better hope for a low or no dust race. You won’t find many if any racer that requires an air filter using a paper filter.
Paper filters are great for O.E. warranties and filter manufactures IMO 
MikeR
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Re: K&N worth it over a Purolator
[Re: 05dakota]
#1026636
07/06/11 12:52 AM
07/06/11 12:52 AM
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Joined: Jan 2003
Posts: 21,525
N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,525
N.E. OHIO, USA
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Quote:
i guess you dont care about it actually filtering
How's that?........pretty sure there's "some" dirt around when we're racing 
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Re: K&N worth it over a Purolator
[Re: bigdaddywiz]
#1026639
07/06/11 02:57 AM
07/06/11 02:57 AM
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Joined: Apr 2008
Posts: 1,285
Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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The reason we use an air filter in the first place is not because of their amazing ability to flow air but rather to protect our engines from fine dirt particles. It's the finest of dirt particles (2 to 22 microns) that causes the most harm over time to our engines. It's proven, the K&N is effective at keeping birds and insects out of our engines but not so good at keeping the fine dust out that actually kills our engines over time. Really, check out the ISO 5011 Standardized Air Filter Test at THIS LINKIf your goal is to optimize horsepower do what the drag racers do and use no filter at all otherwise just stick with a quality paper.
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Re: K&N worth it over a Purolator
[Re: CompSyn]
#1026640
07/06/11 03:34 AM
07/06/11 03:34 AM
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Joined: Jan 2003
Posts: 21,525
N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,525
N.E. OHIO, USA
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I will agree to some of what you say but that would mostly hold true for your daily commuter that you’re maybe hoping to get 100,000+ miles out of but how many of us drive their muscle cars looking for that kind of life versus performance? If you’re putting performance mods on or in your engine then why not get a performance air filter, oil filter and performance oil or build the engine with low compression, a single point distributor, single exhaust, etc. oh wait that would be something like a 4-door Valiant. I say if the original poster is putting on some intake performance up grades then a K&N filter is the way to go, if he’s looking to get a lot of miles out of the engine then stick with a paper filter………..maybe even use a dual snorkel air filter cover to minimize the intake noise and minimize the dirty air that might contaminate the paper filter too.
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Re: K&N worth it over a Purolator
[Re: A12]
#1026641
07/06/11 04:45 AM
07/06/11 04:45 AM
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Joined: Apr 2008
Posts: 1,285
Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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Quote:
I will agree to some of what you say but that would mostly hold true for your daily commuter that you’re maybe hoping to get 100,000+ miles out of but how many of us drive their muscle cars looking for that kind of life versus performance? If you’re putting performance mods on or in your engine then why not get a performance air filter, oil filter and performance oil or build the engine with low compression, a single point distributor, single exhaust, etc. oh wait that would be something like a 4-door Valiant. I say if the original poster is putting on some intake performance up grades then a K&N filter is the way to go, if he’s looking to get a lot of miles out of the engine then stick with a paper filter………..maybe even use a dual snorkel air filter cover to minimize the intake noise and minimize the dirty air that might contaminate the paper filter too.
Engines don’t just last to around 100,000-miles and are worn out overnight. They wear out at a semi-linear rate largely based on operating conditions.
With that extra abrasive dirt passing by the K&N air filter (as proven) one would have to logically ask how much quicker is the rate at which the piston rings, cylinder bores, and bearings are going to wear out? Especially in a high performance engine that’s driven like a high performance engine.
Quote:
If a worn or poorly fit air filter allows as much as a tablespoon of abrasive dirt into the cylinders, it will cause wear to the extent that an overhaul will be required - Textron Lycoming Publication
So how much more horsepower will an engine produce if the piston rings, bore liners and bearings are worn out at an accelerated rate?
Alright, so you gained 3 horsepower on the dyno with the K&N on a freshly rebuilt engine, but could it be within 50,000-miles the piston rings, cylinder bores and engine bearings have worn at an accelerated rate? So now how much horsepower have you gained with the K&N or is it lost? Sure this engine will continue chugging away to the magical 100,000-mile mark but man the darn thing doesn’t seem to make the power that it used to.
Again, I'll stick with a good quality paper filter and in doing so I'm confident that I'll have a better performing (more powerful) engine over the long term.
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Re: K&N worth it over a Purolator
[Re: CompSyn]
#1026642
07/06/11 09:27 AM
07/06/11 09:27 AM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
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I put one on the ex's '01 Silverado. No extra MPG or performance.
My wallet was lighter.
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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