replace snorkel with cone filter

[CJ_Boxster]

Thats an interesting idea that inspires me, you could use the Snorkel as a mount... just chopping off most of it and using the base as a mounting point for the new filter HOWEVER you would get the filter wet when washing the car... and while water will not splash into the airbox.. it would atomize when the engine is started and sucking in air and that mist of water will land on the MAF if the filter isnt dried first.

Also, i think alot of the cool intake sound would be canceled out with a filter on the end of the assembly cause i beleive some of the noise is part of an echo which come from inside the void of which the old snorkel use to occupy (the gap between the scoop on the body and oval opening of the airbox).

[j.fro]

Interesting idea, but to really see some benefits, you'd need to do a bit of work inside the airbox. The worst part of the stock airbox is the convoluted tube that runs from the snorkel to the air filter. It directs air in,forward, up, then back. As well, it has the narrowest cross section of any part of the intake pathway. The EVO and other aftermarket intakes eliminate all of this, making airflow more efficient. To keep the cold air part on an EVO, simply extend the sides of the new box so that they seal against the engine cover. I used foam pipe insulation for this.
Garage innovation is a great thing!

[CJ_Boxster]

One more thing i thought of that might be a problem... in the airbox there is a water drain with a feltpad liner, if you place a filter before the drain, i think air will probably get sucked up from there unless its plugged.

[Most_Wanted]

Thread revival. I feel this topic didn't get enough responses.

Has anyone attempted this sort of modification? I was thinking you cut the "tub" piece off the snorkel and attach a filter with a oval design fitting. Finding the appropriate sized filter could be a challenge. If j.fro can reiterate on what makes the 986 airbox restrictive. I didn't understand clearly. Difficulty in fitting a 987 airbox is the only thing swaying me away from the mod. This could be a nice alternative to the 987 airbox.

[j.fro]

The pipe that runs between the snorkel and the actual airbox has at least 3 90 degree bends. As well, it has a pretty narrow cross section.

I had to do some significant mods (like get rid of the convertible top and the rain trays), but I've got a cone air filter and the MAF now located in a box outside of the engine compartment, just inside of the air intake. Using Dash Command, one improvement I regularly see is that incoming air is only a few degrees warmer than the ambient air temp. With the airbox/MAF inside the engine compartment, you'll get readings significantly higher.