De Snorkeled! Does it negatively effect HP or torque?

[Boxtaboy]

That's exactly what I did. I didn't like the sharp edge left after pulling out the snork, so I took a dremel to the sharp edge, and ground it to a smooth curvature. I then vacuumed out all the stuff I ground down. Here's a blurry pic I took after it was done...

Originally Posted by jaykay

Lets leave out intake tract acoustics and ECU response to airflow changes which affect performance. Assuming that these that these factors are not affected by de-snorking, we now basically left with flow considerations. A normal Boxster engine has to draw air in like a pump. Flow losses upstream of the engine will reduce the flow rate at a given rpm. Fluid energy is lossed by having to make through obstacles. Air flow is a tricky thing; one has to test what is an obstacle in combination with everything else.

Generally section changes, area reductions, sharp edges surface friction all give rise to losses in steady state pipe flow. The flow loss reduction or lack there of, with respect to a de-snork comes down to the flow losses associated with the snork (area restriction; the cup is a sharp edge vs. the sharp edge you are left with upon its removal. I would guess that the huge intake area increase would just beat out the losses associated with the air box sharp edge....but one has to test.

I did this mod for sound; it is fanastic and I want more of it. If you are after a significant power go for an under drive pulley instead. I do get worse fuel economy because I am hard on the throttle enjoying the sound!

One day when I get around to it I will fabricate and post my solution to the de-snork sharp edge

[jaykay]

Nice work! I didn't there was enough material there to shape a lip; I have 2000. Plus my plastic panelling is much tighter around the opening than yours. Huge losses can occur on sharp intake edges. Did you get a different sound out of it?

I was thinking about something a little more sneaky......I am betting someone here has probably done something similar already. I will post it up when I get it done.

[Boxtaboy]

Thx. Your intake opening should look exactly like mine, because mine's a 2001, and they didn't change it again until 2003.

You can definitely dremel down the sharp edge until it gets smooth. The sound is great, but I don't think dremeling the edge changes it much, the desnork itself adds a nice sound alone.

What I think would be interesting to do is to cut off the snork tube near the end where it meets the hole at the airbox and then either attach a curved trumpet like opening or fabricate one that will fit right into the hole as the original snork did. Short snork with a wide opening if you will...

[jaykay]

You got it! This is what I was thinking of.......but it just a little sneaker than this!

If it works out I will let you know....I think you will like it a lot!

[tonycarreon]

so i finally de-snorked ( i know, what took so long ) and since everyone always asks about before and after sound...

a totally unscientific, meaningless before and after. don't expect much with laptop speakers.

http://www.youtube.com/watch?v=WOzdnvW_oAA

[Bobiam]

This mod didn't please me. I tried the de-snork just to see what happened. Sounds much like when we used to take the air cleaner off of 60s and 70s cars. Trouble is that the sound gets bigger than the "go". Kinda like a little riceburner that has exhaust that sounds like 600 hp but still has no go.
To each his own........ Enjoy it if you lioke it, but I would not expect that you'll feel more HP. I didn't.

[code7]

I De-Snorked mine today. I have a 98' and man was it a pane in the ass to get the vent off. In the process I was lucky enough to break one of those dame clips that are attached to the grill slits. The one I broke was the forward most to the front of the car. I reinstalled the deal and its a little more loose now but not that it will effect anything (I hope). I like the new sound of the engine now. Sounds great. AS for removing the vent I did research on it but it seems there is now easy way to get it off...I guess I'm lucky I only broke one clip