K&N Air Filter - Team Camaro Tech
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post #1 of 4 (permalink) Old Oct 22nd, 03, 04:14 PM Thread Starter
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Join Date: Sep 2003
Location: Richmond, VA
Posts: 162

Will an air filter like K&N really increase H.P.?

bluesdog is offline  
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post #2 of 4 (permalink) Old Oct 22nd, 03, 06:56 PM
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Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277

From the standpoint of decreased restriction yes. However, there are reports that on carborated cars of power loss. I believe that most often happens with the K&N filter lids and strange flow patters that affect the carb vents, and airbleeds. From my experience with them, your increase depends on the vehicle / motor. For example, my 94 [email protected]%D F150 has a very restrictive air box and the improvement was noticable. But a smaller motor or a better designed intake system might not exhibit the same improvment IMHO.


68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
post #3 of 4 (permalink) Old Oct 22nd, 03, 07:28 PM
Join Date: Oct 2002
Posts: 2,045


D brought up an excellent point on the 'cleaner lid' problems.

I like the 14" element and have used it extensivly with excellent results.......and have experienced the same problems as D stated about the 'lid's.

A realistic increase number will greatly rely on your overall engine/induction package. The 'Flow Control' system has produced the 25+ hp increase on an engine that made 400+ hp, I will stand behind their claim on that one. But as for the element replacement alone......between 6 to 12 on average would be a good round number.....amybe more......it depends.
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post #4 of 4 (permalink) Old Oct 23rd, 03, 04:21 AM
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Join Date: Aug 2000
Location: Decatur Indiana, USA
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On a 327 I had built, I had 311 HP to the tires on a new paper element, with the KN switch, only moments later it made 314 HP. This was with a 14" element.

1968 Camaro 383 517hp/500tq, Autogear M22, Marina Blue
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