Planet 9

Flip · #1 06-19-2009, 03:15 PM

Seems like a lot of money if it just changes the exhaust note. Any info / advice much appreciated as I need to finalize my 2010 CS order in the next couple of days.

**Blitzkrieg** · #2 06-19-2009, 03:33 PM

From what I've read the PSE is designed for more engine sound (without drone) and offers no tangible performance gains. If you're already debating between PSE and an aftermarket catback I'd suggest choosing the latter.

Heres a link to the gen 1 stuff:
http://www.planetporsche.net/cayman-...n-porsche.html

**MarkinHouston** · #3 06-20-2009, 07:13 AM

Geetings all,

True to Porsche's word, the PSE does not, let me repeat that, does NOT get you any power gains. I have had mine on a dynomometer in both quiet and loud modes and the power is the same.

And, truth be told, at WOT and high rpm, the sound was about the same too. Sort of a loud power washer sound. So my theory is that there is a significant restriction in there somewhere. Maybe in the secondary cats -- I don't know.

To get a better sound, just wire around the solenoid that closes the valves for EU purposes from 10 to 45 mph or so to make it switchable. Or just pull the plug to permanently make it loud. Although it's not all that loud, just FYI.

The exhaust sounds pretty good, actually, except, as I said, at WOT/high rpm conditions. And then it's pretty much like stock.

I hope this helps.

Best,

- Mark

Pcay60 · #4 06-20-2009, 08:16 AM

+1 for what Mark said. I have '07 CS with PSE. He is absolutely correct that this system gives no power gains. Torque curve changed slightly. I unplugged the vacuum lines. Sounds better. If I had the money, I would install a Fabspeed catback.

slapshot · #5 06-20-2009, 10:54 AM

I have the PSE. Which plug do I pull to make it permanently loud?

Flip · #6 06-20-2009, 04:52 PM

Appreciate the feedback. At this point it does not matter as my local dealer told me today that the Porsche Sport Exhaust is not yet available for the 2010 builds. No clue why. "Might" be available for ordering later this year.

beez · #7 06-20-2009, 05:11 PM

Originally Posted by Flip

Appreciate the feedback. At this point it does not matter as my local dealer told me today that the Porsche Sport Exhaust is not yet available for the 2010 builds. No clue why. "Might" be available for ordering later this year.

This happens a lot when ordering a car for an early model-year build - some options are not available for early builds, but become available later on. For '09 it was the LSD option that was only available with the PDK early-on. In '07 I recall the deviating color stitching in the leather wasn't available until halfway through the model-year, and wasn't available at all on '06 cars. In '06 the sport exhaust wasn't available until almost the end of the run. I ordered an early '06 build, and wanted the Carrera sport wheels, but they weren't available until three months after my build slot.

brad

Len in Naples · #8 06-20-2009, 08:13 PM

PSE availability for 2010 seems very strange as my 2009 CS will be delivered on the 26th of this month and has the new design PSE but it did cost be two months delay in delivery. Why would it not be available for 2010?

Pint of Brew · #9 06-21-2009, 04:43 AM

Markin Houston:

Your post suggests you know a way to bypass the 25-40mph PSE cut-out. The method to jam the PSE in permanently-open mode is well documented on this site, but unless I didn't understand correctly, you know a way to avoid the 25-40 cutout, without leaving the exhaust in perma-open.

Could you please be a little more specific about this mod? I'd very much like to avoid the 25-40 interruption but keep the PSE on/off functionality. I'll even volunteer to write an article about it if it works.

Flip · #10 06-21-2009, 09:34 AM

Originally Posted by Len in Naples

PSE availability for 2010 seems very strange as my 2009 CS will be delivered on the 26th of this month and has the new design PSE but it did cost be two months delay in delivery. Why would it not be available for 2010?

Who knows. Might be something as simple as banging out the agreement with the supplier of the components for an upcomming manufacturing run. By the way, what is the fundamental difference between your reference to the "new design PSE" and I guess what you'ld call the "old design"?

**MarkinHouston** · #11 06-22-2009, 07:50 AM

Mr. Pint of Brew,

Certainly! Actually, I think I wrote about it a good while ago and if this forum lets you find my previous posts, you can find it there. Plus on Renntech (and on Rennlist) for the 997 cars, you can find it there as well.

In any event, what happens is the DME tells the solenoid via a low voltage signal to provide vacuum to the exhaust valves to make it quiet. This occurs when you select quiet or, during loud mode, from 10 to 45 mph. All you need to do is find the solenoid (remove the engine cover and look kind of in the left and rear of center of the intake manifold -- you can find the pictures on the other forums -- or maybe here as well. I don't have any or I would send you some) and interrupt the circuit with a switch.

There are two wires that go to it -- either one will work. Just cut one of them and run a pair of new wires (that you have joined to the ends of the one you just cut -- in effect, you are just lengthening that wire) into the cockpit. I ran mine along the shifter cable and through the pass-through grommet for the shifter cables and then into the ashtray. Wherever suits you, just install a SPST switch. That will interrupt the DME signal in the off position for constant loud mode and in on position, let the DME control it as designed.

Make sense?

I hope this helps.

All the best,

- Mark

Len in Naples · #12 06-22-2009, 07:56 PM

the difference is that the exhaust note can be varied or modulated rather than just off or on. This was introduced on the 911 in Jan 09 and Cayman later.

Flip · #13 06-22-2009, 09:31 PM

Originally Posted by Len in Naples

the difference is that the exhaust note can be varied or modulated rather than just off or on. This was introduced on the 911 in Jan 09 and Cayman later.

How does the user control work to vary the exhaust note?

dorkle · #14 06-23-2009, 08:34 AM

I've just taken delivery of my new Cayman S, with PSE.

There are some differences I believe with previous versions (and from what I had read in the configurator / ordering book).
I have Sport option + PASM, and while I thought there would be no additional swith for PSE (on with Sport on, off with Sport off), there is one.

So I can have Sport Mode on, Sport Suspension on and PSE off; of Sport mode off, Sport suspension off, and PSE on.

Howevere I haven't seen anything about modulating / varying the exhaust note in addition to on/off switch.

Hope it helps!

Flip · #15 06-23-2009, 09:25 AM

Originally Posted by dorkle

I've just taken delivery of my new Cayman S, with PSE.

There are some differences I believe with previous versions (and from what I had read in the configurator / ordering book).
I have Sport option + PASM, and while I thought there would be no additional swith for PSE (on with Sport on, off with Sport off), there is one.

So I can have Sport Mode on, Sport Suspension on and PSE off; of Sport mode off, Sport suspension off, and PSE on.

Howevere I haven't seen anything about modulating / varying the exhaust note in addition to on/off switch.

Hope it helps!

So binary ....its either on or off and nothing in between. Len in Naples: is your set up different? Thanks.

Pint of Brew · #16 06-24-2009, 05:59 AM

PSE always has been, and will remain, an on-off affair. If you have PSE and SC, there will be no separate button for the PSE, it'll actuate at the same time as the SC sport-mode.

PASM always had a separate toggle. Be also aware that PASM-off with SC-on is not exactly the same as PASM-off with SC-off. PASM is in absolutely no way binary, it is not a two-stage damper. It's a continuously variable damper that runs off profiles, changing hardness many times per second. With PASM-off and SC-on it is much softer and supple, but it still does not run the full comfort maps that PASM-off/SC-off has.

The most commonly held opinion in this forum is that it's not a particularly financially-sane option. It's a lot of money, for what is a sound-upgrade, with zero performance gain. It is also a lot of money for a part which will be practically the first thing to go when modding starts. Any after-market exhaust will net you a lot more power and a variety of sounds from loud to humble. The only pros to the PSE are that it's a factory item, and the dealers won't throw up any stink (for parts of the world where dealers are picky on that) and that its "silent" mode is more quiet than any other after-market exhaust out there.

Lastly: There's a very exhaustive, comprehensive and well-written FAQ page about exactly this, so we don't have to make a new thread every time some member wants to know about an option.

beez · #17 06-24-2009, 07:48 AM

Originally Posted by Pint of Brew

PASM always had a separate toggle. Be also aware that PASM-off with SC-on is not exactly the same as PASM-off with SC-off. PASM is in absolutely no way binary, it is not a two-stage damper. It's a continuously variable damper that runs off profiles, changing hardness many times per second. With PASM-off and SC-on it is much softer and supple, but it still does not run the full comfort maps that PASM-off/SC-off has.

Most of what you've said here is correct, but PSAM is continuously variable within the confines of two damping ranges - "normal" and "sport." The "normal" range is the same mapping with Sport Chrono off or on, and the "sport" mapping range is the same whether or not Sport Chrono is on or off.

brad

dorkle · #18 06-24-2009, 11:05 AM

Originally Posted by Pint of Brew

PSE always has been, and will remain, an on-off affair. If you have PSE and SC, there will be no separate button for the PSE, it'll actuate at the same time as the SC sport-mode.

I thought also that SC and PSE would be switched on with the same button; but it is not the case.

I have 2 different buttons on my 09 CS : one for Sport mode (on/off), and one for PSE (on/off)

Len in Naples · #19 06-24-2009, 04:34 PM

Well on the modulating with the new PSE is what my dealer told me and allegedly why it took so dar long to get it. I pick my new CS this Friday June 26th and will let you all no the rest of the story.