Finally: Dyno charts of de-snorked 986S!!!

[blue2000s]

Originally Posted by Bisimoto

Very true, Blue. You can also enhance that with pipe ID steps, and preventing reversion at the flange helps a bunch as well. Despite what I see in the market for the boxsters, a long primary tube may prove to be a best bet due to the relatively low peak power RPM of the boxster engine. Most units I design for 9800+ rpm engines have primary lengths that hover in the 20 inch range.

Do you do any modeling with software tools? Wave, GT-Power? You can get close to optimal much faster with some well designed models.

[Cloudsurfer]

Bisimoto-

Welcome to the board and thank you. I think alot of us have been waiting for a true engineer and enthusiast to come along and do a few things right. Theres no doubt that the factory 3.2 is a somewhat detuned motor to keep the Porsche pecking order intact at the dealership, but it would seem that the key to coaxing more power out of the 3.2 lies in DME tuning, not just bolt on bits to help the motor breathe better.

I am very interested in finding the right headers (preferably with integral high flow (200 cell ideally) cats and 2nd cat deletes. On a motor of this expense, I'm not sure I trust running any of the higher flow filters or intakes due to the increased amount of grit that gets by, by figure a de-snorked stock intake. Now if someone can make a fantastic map to flash into the DME to take advantage of this and 93 octane fuel (or better) I think that would be a real winner.

Good luck to you and keep us posted.

Patrick

[Bavarian Motorist]

I just looked on caymanclub.com for desnorking.

I'm still not sure what it is. All I got is that there is an extra air restriction on the car somewhere.


Can anyone explain what it is briefly?

[Bavarian Motorist]

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]

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.

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

[porsche986spyder]

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.

[porsche986spyder]

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]

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]

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?

[Bisimoto]

Originally Posted by blue2000s

Do you do any modeling with software tools? Wave, GT-Power? You can get close to optimal much faster with some well designed models.

No, I do not blue, since the software is only as good as the engineers who designed it. In addition, my experience dictates that most exhaust modifications defy logic and the dyno is a key component to finding hidden power.

Many premier race teams use their own software, as well. I have many algorithms in my arsenal that I keep top secret, and those equations will point me in the right direction and allow me to get to my goal fairly quickly. If the is a market for such advanced headers for the Boxster, I may even pursue it. Only time will tell.

This board is great! Thanks for the kind words, and warm welcome everyone.

[blue2000s]

Originally Posted by Bisimoto

No, I do not blue, since the software is only as good as the engineers who designed it. In addition, my experience dictates that most exhaust modifications defy logic and the dyno is a key component to finding hidden power.

Many premier race teams use their own software, as well. I have many algorithms in my arsenal that I keep top secret, and those equations will point me in the right direction and allow me to get to my goal fairly quickly. If the is a market for such advanced headers for the Boxster, I may even pursue it. Only time will tell.

This board is great! Thanks for the kind words, and warm welcome everyone.

I know the engineers who designed it. Ricardo knows what they're doing and GT suite is an off-shoot of them. It's an open ended code so you need to input alot of parameters to get an accurate model.