My experience with K&N FIPK
Thread Starter
On The Tree
iTrader: (6)
Joined: Oct 2011
Posts: 178
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From: Orange County, CA
My experience with K&N FIPK Hello,
This is not a thread bashing the K&N FIPK but I am just sharing my experience with it and this might just be an isolated incident. When I first bought my car, it ran a 13.40 @ 104 at DA=2000'. I thought something was wrong with it since its a 6 speed with 4.10 gears, mild cam, stock manifolds, and ported 241s. I was looking for what might be killing my time and thought about the K&N FIPK. Due to its design, it is not enclosed like the stock airbox and has the potential to breathe hot air in the engine bay. I decided to take off the FIPK and install the stock lid and coupler back onto the engine. I took the car to the track this weekend with a similar DA and it ran 12.80 @ 110. The only change in between the two track runs was installing the stock airbox. This leads me to believe that the K&N was killing my time so I wanted to share my experience in case anyone was going through the same confusion. I can't wait to try an SSRA and SLP/FTP Lid to see if I can pickup another tenth or two.
This is not a thread bashing the K&N FIPK but I am just sharing my experience with it and this might just be an isolated incident. When I first bought my car, it ran a 13.40 @ 104 at DA=2000'. I thought something was wrong with it since its a 6 speed with 4.10 gears, mild cam, stock manifolds, and ported 241s. I was looking for what might be killing my time and thought about the K&N FIPK. Due to its design, it is not enclosed like the stock airbox and has the potential to breathe hot air in the engine bay. I decided to take off the FIPK and install the stock lid and coupler back onto the engine. I took the car to the track this weekend with a similar DA and it ran 12.80 @ 110. The only change in between the two track runs was installing the stock airbox. This leads me to believe that the K&N was killing my time so I wanted to share my experience in case anyone was going through the same confusion. I can't wait to try an SSRA and SLP/FTP Lid to see if I can pickup another tenth or two.
Thread Starter
On The Tree
iTrader: (6)
Joined: Oct 2011
Posts: 178
Likes: 0
From: Orange County, CA
Ya, Its an odd observation for sure. I wish I swapped out the airbox on the same day, but the gains are big enough to still be relevant. The 60' time was the same both times at 1.9 second
The Firehawk I bought and sold had one on it. Had I kept the car, that was the first thing that would have been replaced. I've yet to see any hard evidence that it's better than a lid setup in any way. However there's been lots of posts on here stating the opposite. The hot air factor, the constant cleaning, and the water logging (maybe that's specific to an open nostril hood) were enough to turn me off of it. I took it off to clean it before the car sold and it was black and gooey on the bottom from all the cleaning oil, water, and filth that had gathered and settled since the last time it was cleaned, which was supposedly done a few weeks prior. No thanks.
I wouldn't.
With a lid setup I typically see cars IAT at or near ambient when moving.
The POS K&N typically hangs IAT temps over 100*F and heat soaks when not moving. A lid also looks like it would smooth the airflow towards the TB more which could lead to increased velocity at higher RPMs.
And if you install a ram air setup under the lid there is even more to gain.
I have the same problem with my cars cone filter. In 60* ambient temps its often sitting around 95*F until the car has been moving for some time.
With a lid setup I typically see cars IAT at or near ambient when moving.
The POS K&N typically hangs IAT temps over 100*F and heat soaks when not moving. A lid also looks like it would smooth the airflow towards the TB more which could lead to increased velocity at higher RPMs.
And if you install a ram air setup under the lid there is even more to gain.
I have the same problem with my cars cone filter. In 60* ambient temps its often sitting around 95*F until the car has been moving for some time.
