K&N Replacement Filter Test Part 2 : Magnuson Superchargedhttp://www.svtperformance.com/forum...filter-test-part-2-magnuson-supercharged.htmlhttp://www.svtperformance.com/forum...filter-test-part-2-magnuson-supercharged.htmlhttp://www.svtperformance.com/forum...filter-test-part-2-magnuson-supercharged.htmlhttp://www.svtperformance.com/forum...filter-test-part-2-magnuson-supercharged.html
http://www.svtperformance.com/forum...filter-test-part-2-magnuson-supercharged.htmlSpoiler Alert : If you haven't seen our first K&N vs. stock paper filter test yet you really should take a minute to go back and read it: http://www.svtperformance.com/forum...ance-2012-gt-k-n-replacement-filter-test.html
Just to recap our findings from last time, on the SVTP 2012 Yellow Blaze SVTP 2012 Mustang GT Mustang GT (in bone stock condition) we actually lost horsepower by switching to a drop-in replacement K&N air filter. We were quite surprised by the results, but they are what they are. However, since we're the type to never leave anything alone we decided to run this little experiment again. But there's a twist, this time the SVTP GT is supercharged. We found ourselves yet again taking advantage of the advanced Superflow chassis dyno at Arrington Performance. The two filters from the previous test are being reused. The only differences are the addition of 7psi of boost courtesy of our 2.3L TVS-Based Magnuson Supercharger, and the fact that we ran the K&N filter first before switching to stocker. All this should make these supercharged results directly comparable to our previous N/A numbers. Follow along for the results:
This the underhood view of the SVTP GT since the addition of our Magnuson supercharger.
The Magnuson retains the stock airbox, which will be the subject of our next article.
Here you can see the silicone elbow that connects the airbox lid/MAF housing to the throttle body.
The subject of today's test. It appears to be endorsed by Ford Racing.
The part number for those who may be interested.
As it comes out of the box.
The heavy rubber construction of the K&N is far more robust than the stock filter's foam rubber.
Here you can see the physical height difference of the two filters.
Fitment of the stock filter.
Fitment of the K&N filter.
This is our best run with the K&N filter, 507.1HP 420.2TQ.
This is our best run with the stock filter, 512.9HP 428.4TQ.
This a comparison of the best runs with both filters.
The Magnuson retains the stock airbox, which will be the subject of our next article.
Here you can see the silicone elbow that connects the airbox lid/MAF housing to the throttle body.
The subject of today's test. It appears to be endorsed by Ford Racing.
The part number for those who may be interested.
As it comes out of the box.
The heavy rubber construction of the K&N is far more robust than the stock filter's foam rubber.
Here you can see the physical height difference of the two filters.
Fitment of the stock filter.
Fitment of the K&N filter.
This is our best run with the K&N filter, 507.1HP 420.2TQ.
This is our best run with the stock filter, 512.9HP 428.4TQ.
This a comparison of the best runs with both filters.
We ran a total of three back-to-back runs with each filter, with the following results:
K&N Filter
499.4HP 421.5TQ
507.1HP 420.2TQ
487.0HP 416.1TQ
Stock Filter
512.9HP 428.4TQ
501.7HP 413.6TQ
504.3HP 410.1TQ
With results like these all I can really do is re-post my conclusion from the previous article, as it is an equally appropriate wrap-up of the findings in our K&N tests in both N?A and supercharged applications:
I believe it’s safe to say that at the very least you will not see a tangible power gain with simply a drop-in filter. However, that’s not really the purpose of that type of filter. It is intended help save you money by being washable and reusable instead of disposable like the stock filter. Whether you’ll own your vehicle long enough recoup the initial investment is a question of usage. If you rack up a lot of miles or drive in dusty conditions a drop-in K&N filter may be worth it for you, but not if you’re looking for more power.
Special Thanks To:
Arrington Performance.
StacyStangz Photography
Sidebar - Some of the photos used above were taken before the supercharger was installed on the car.
- SID297 - :beer: