914-6 factory air cleaner - vs - K&N's, Which unit performs best Options

[david63]

Currently have a factory 914-6 air cleaner on the 3.0 in my 74 conversion. Question for the group is which system breathes better, the factory system or the K&N filters? I like the look of the two filters with the watershields but if the factoy system is better performance wise I guess I should stick with it? Please advise.

[R8CERX]

An insider trick that most of you will gain 15 or more horsepower .....

I had the original non k&n filter with water shields and when I dyno my 914-6 stock 2.0 liter engine, I was getting aroun 95 to 100 ponies to the wheels

Then I removed the filters, dyno the car and was able to get 125 ponies at wheels

Knowing that, i bought off the shelf k&n filters to match same dimensions to original filters and was getting about 100 ponies

BUT

I was lucky yo know the owner of k&n and he asked me to bring my car to their shop and engineers

Well- the guys did some prototypes of various heights of filters to fit within the engine bay-- and they finally got the full 125 ponies at the wheels using their k&n filters- (IMG:style_emoticons/default/piratenanner.gif)

Basically zero restriction-as if I was running without the filters

Lesson to learn: (IMG:style_emoticons/default/blink.gif)
So, you may want to check that you are not choking your Venturi stacks!
Original filters may be doing so to many of your 914-6s