Finally: Dyno charts of de-snorked 986S!!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Bavarian Motorist · 02-21-2007, 10:46 PM

Never mind, guys. I found an amazing guide here.

http://www.caymanclub.net/reviews/showproduct.php?product=28&cat=4

This guy has a Boxster S 987 so this applies directly to us.

I will not even bother putting a wire mesh because I don't smoke and no one who drives my car will smoke.

Thank you, Bisimoto, for bringing this great idea to my attention, and most of all, thanks for proving that it is worth it

porsche986spyder · 02-22-2007, 08:07 AM

Quote:

Originally Posted by Bavarian Motorist

I will not even bother putting a wire mesh because I don't smoke and no one who drives my car will smoke.

The mesh will also help keep "leaves" out and other stuff that flies up from the road like other peoples cigaret buds.

02-22-2007, 08:11 AM

He accually removed a restrictor plate thats in front of the intake.

porsche986spyder · 02-22-2007, 08:36 AM

Quote:

Originally Posted by boggtown

He accually removed a restrictor plate thats in front of the intake.

Oh yes, that too. But left the snorkle on the 987.

Bavarian Motorist · 02-22-2007, 08:40 AM

Quote:

Originally Posted by porsche986spyder

Oh yes, that too. But left the snorkle on the 987.

Now I am confused. So there is a snorkel somewhere also? Do you know where it is?

porsche986spyder · 02-22-2007, 08:49 AM

Quote:

Originally Posted by Bavarian Motorist

Now I am confused. So there is a snorkel somewhere also? Do you know where it is?

You can see it in that list you posted. The guy did not remove it for some reason. He only removed the restrictor plate and retaining ring. Not sure why he stopped there. Look at the part sitting next to the dyno in the picture below in the original post. That's the SNORKLE part. It's just shown sitting straight up instead of the way you would normally see it inside the vent area. Hope this helps.

Bavarian Motorist · 02-22-2007, 08:50 AM

Thanks. My final noob question on this matter (hopefully) is can it be removed from the vent or only from the engine?

porsche986spyder · 02-22-2007, 08:44 AM

Quote:

Originally Posted by boggtown

He accually removed a restrictor plate thats in front of the intake.

How come the 986 doesn't have this restrictor plate in front of it to begin with and the 987 does?

Bavarian Motorist · 02-22-2007, 08:27 AM

Quote:

Originally Posted by porsche986spyder

The mesh will also help keep "leaves" out and other stuff that flies up from the road like other peoples cigaret buds.

Not worth the 2 dollars to me!!!

Just kidding.

RandallNeighbour · 02-22-2007, 08:35 AM

Now where are all the critical comments from forum members who have said emphatically that desnorkeling will not increase HP at all and it's all about making the intake a little louder?

Lurking now, aren't you?

porsche986spyder · 02-22-2007, 08:41 AM

Quote:

Originally Posted by RandallNeighbour

Now where are all the critical comments from forum members who have said emphatically that desnorkeling will not increase HP at all and it's all about making the intake a little louder?

Lurking now, aren't you?

When people always referred to "de-snorkle" I thought they were talking about the intake tube that contains the little extra noise/silencer box that sticks out from the tube just before the throtle body. I had no idea there was another "snorkle" shaped device in front of the air box, that one could remove fronm the outside. I think many others were thinking of the C.A.I. tubbing also. I'm deffinately going to remove this "snorkle" part now.

Bavarian Motorist · 02-22-2007, 08:44 AM

If you are referring to that guide I posted, the author said that Porsche added it for the 987 because of the cigarette incident...

porsche986spyder · 02-22-2007, 08:50 AM

Quote:

Originally Posted by Bavarian Motorist

If you are referring to that guide I posted, the author said that Porsche added it for the 987 because of the cigarette incident...

That's funny, because I heard that was the reason for the CUP shaped part.

MNBoxster · 02-22-2007, 02:56 PM

Quote:

Originally Posted by RandallNeighbour

Now where are all the critical comments from forum members who have said emphatically that desnorkeling will not increase HP at all and it's all about making the intake a little louder?

Lurking now, aren't you?

Hi,

Just caught this thread - see: http://www.pca.org/tech/tech_qa_question.asp?id={5628EC8F-3626-40D2-8AE0-E9F524E0718F} . I'm still not totally convinced, I think there's an error in the methodology. That's an approx. 6 CHP gain, and I'm just not convinced this part robs 6 HP. I can hold a thermometer in my hand and watch the Mercury rise, that doesn't mean I've made the room any warmer, or conversely, that I have cooled the room when I release the thermometer. There's no reason for Porsche to do it...

Happy Motoring!... Jim'99

Bavarian Motorist · 02-22-2007, 03:11 PM

I'm not sure if the thermometer analogy conceptually applies here.

pecivil · 02-22-2007, 03:22 PM

Bisimoto!!

Welcome to the board! You are definitely the kind of Boxster guy we need on here.

I would love to drop by your place and test my engine. There are some great roads through the hills in Hacienda hts. I have transplanted a 3.4l 996 carrera engine in my car. I have revo software, the K&N intake and a somewhat screwed up set of headers, 200 cell cats and muffler from a shop in Maryland that was supposed to be designed for the swap. Alas, the exhaust system sounds really great, but there are fitment issues with suspension. I would love to see what you come up with for the 3.2 engine exhaust wise. The 3.4 and 3.2 are (almost) the same engine.

If you need/want a guinea pig for exhaust system work, I would be happy to volunteer!!

BTW nice work on the desnorkleing. I did this a long time ago, and decided it was worth it just for the sound. Glad to see it does add a bit of torque.

Monte

porsche986spyder · 02-22-2007, 03:23 PM

Quote:

Originally Posted by Bavarian Motorist

I'm not sure if the thermometer analogy conceptually applies here.

I agree. I look at the dyno results. I think it speaks for itself. By the way the link the other guy posted by PCA says he thinks by doing this we are removing the cooler air from the outside!?! Makes no sence, all we are doing is removing something that is restricting the air flow, not REMOVING the air flow all together, nor are we re-directing it from some place else, like from the inside of the engine. It will still pull the air from the outside! Look how close the opening is to the vents.

Adam · 05-17-2008, 07:12 AM

@ Bisimoto, do you think any gain would be had on desnorkeling a 03 or 04 boxster that lacks the "shovel" at the end of the snorkel? If so, do you think it would be a less significant gain? Also, did you get the results in on the K&N filter?

If any 2003 or 2004 owners out there have desnorked I'd like to hear your opinions as well. Thanks!

catmanluge · 05-24-2008, 05:50 AM

Keep up the good work. Its amazing how many people replied without any dyno of their own to show different results... All theory!

I am having trouble with allowing enough air in a cold air box setup using a K&N filter. The car a 3.4 ltr Boxster can't produce any power above 4000 rpm with the air filter but its goes like a rocket with the air filter removed.

I have been asking K&N for assistance with no response from Tech department.

I have 3.5 inch tubing from the TB to the approximate former location of the stock air box that has been replaced with an aluminium shaped cold air intake drawing air from the side vent. The filter I have is cone shaped with a filter on the sides and at the end of the cone rather than having a typical end cap. RX something as I am on vacation and don't have the number with me.

I am looking for a filter that will allow enough air to the motor 3.4 ltr headers and free flow exhaust system.

Thanks

catmanluge