K&N Installation Question
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
K&N Installation Question
I'm putting the 57 Series on my 03. My question is for anyone else who has installed one on there car. When making the cuttout for the flap on the lower radiator cover it seems that the directions say to make the flap opening on the top with the flap going in towards the radiator. This seems to me to be bass ackwards. You would think that the flap would be at the bottom to catch air coming in from below. The tech who kinda new what he is talking about says to cut it at the top and face it in. Can anybody tell me what way they did theirs. Come on Mr. Bill, I think you may have this set up. Thanks in advance.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Here's why.....
The reason why they specify cutting the lower radiator cover that way is because the brackets and cover plastic they are connected to would be prone to failure, should you face the opening toward the incoming air flow. I looked at the setup on K&N's web page before buying a Halltech Stinger and then creating my own air scoop to direct air past the filter. Initially, I machined a scoop out of a solid plate of PVC but later used a polycarbonate "wall pocket" that I bought at Staples (based upon a member's suggestion). The wall pocket, when secured to the lower radiator cover with both screws and 3M VHB tape along the flange surface, is much stronger than the lower radiator cover with just a small bracket. You can see my procedure, here:
http://www.conceptualpolymer.com/Rad...op%20inst..pdf
The K&N will still draw in some cold air, just not nearly as much as my setup does.
http://www.conceptualpolymer.com/Rad...op%20inst..pdf
The K&N will still draw in some cold air, just not nearly as much as my setup does.
Last edited by Dave68; Feb 18, 2012 at 01:48 PM.
Instructor
Joined: Jul 2008
Posts: 133
Likes: 0
From: Champaign Illinois
The reason why they specify cutting the lower radiator cover that way is because the brackets and cover plastic it is connected to would be prone to failure, should you face the opening toward the incoming air flow. I looked at the setup on K7N's web page before buying a Halltech Stinger and then creating my own air scoop to direct air past the filter. Initially, I machined a scoop out of a solid plate of PVC but later used a polycarbonate "wall pocket" that I bought at Staples (based upon a member's suggestion. The wall pocket, when secured to the lower radiator cover with both screws and 3M VHB tape along the flange surface, is much stronger than the lower radiator cover with just a small bracket. You can see my procedure, here:
http://www.conceptualpolymer.com/Rad...op%20inst..pdf
The K&N will still draw in some cold air, just not nearly as much as my setup does.
http://www.conceptualpolymer.com/Rad...op%20inst..pdf
The K&N will still draw in some cold air, just not nearly as much as my setup does.
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
The reason why they specify cutting the lower radiator cover that way is because the brackets and cover plastic it is connected to would be prone to failure, should you face the opening toward the incoming air flow. I looked at the setup on K7N's web page before buying a Halltech Stinger and then creating my own air scoop to direct air past the filter. Initially, I machined a scoop out of a solid plate of PVC but later used a polycarbonate "wall pocket" that I bought at Staples (based upon a member's suggestion. The wall pocket, when secured to the lower radiator cover with both screws and 3M VHB tape along the flange surface, is much stronger than the lower radiator cover with just a small bracket. You can see my procedure, here:
http://www.conceptualpolymer.com/Rad...op%20inst..pdf
The K&N will still draw in some cold air, just not nearly as much as my setup does.
http://www.conceptualpolymer.com/Rad...op%20inst..pdf
The K&N will still draw in some cold air, just not nearly as much as my setup does.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Since you're already running a K&N FIPK, I recommend that you core the fog light panels and install Z06 screens. Your intake air temps will surely drop.
The online instructions for the K&N cutout show the opening at the top. In your diagram it appears that your pocket is open at the bottom. Am I correct or am I looking at it wrong. Thanks for the help.
