aircooler

Yes... there was soup for me today, and 2 big bowls of it!.

Bowl # 1

After licking my wounds from 2 abysmal failures on the emissions dyno (Link to past emissions thread), my S4 finally blew soo clean they checked the machine for errors.


STRAIT PIPES / NEW O2 Sensor / NEW O2 + LIKE NEW FACTORY CAT

40 km/h____LIMIT______READING______________RESULT
--------------------------------------------------------------
HC ppm_____65________216 / 219 / 5 _________FAIL / FAIL / PASS
CO %_______0.36______1.33 / 0.83 / 0.01 _____FAIL / FAIL / PASS
NO ppm_____0726______2126 / 2186 / 96 ______FAIL / FAIL / PASS
RPM__________________1352 / 1265 / 1251 ____VALID / VALID / VALID
Dilution_______________13.33 / 12.9 / 13.0 _____VALID / VALID / VALID


CURB IDLE___LIMIT______READING_____________RESULT
--------------------------------------------------------------
HC ppm_____200_______168 / 155 / 1 _________PASS / PASS / PASS
CO %_______1_________1.11 / 0.59 / 0.00 _____FAIL / PASS / PASS
NO ppm_____N/A_______N/A__________________N/A
RPM__________________764 / 723 / 707 _______VALID / VALID / VALID
Dilution_______________12.70 / 12.3 / 12.2 ____VALID / VALID / VALID

Awsome! I took my emissions report strait to the DMV and got my plates.

Licensed to drive baby!

In my situation it is clear that the problem was the lack of a cat. I don't see how I could have possibly tweaked my 32V to pass emissions without it. Thanks to all for offering their advice/opinions on this issue.

Bowl # 2

I installed my new MQ Quart PSE 316's in the back of the car last night, and they look and sound fantastic!

The only MBQ speaker/grill combination that I used was the mids on the top of the rear inner quarters. These did require 4 new holes to be drilled. Don't attempt this without the 90 Deg dremmel attachment because there is not enough room due to the quarter glass. A normal drill will not fit.

For the tweeters I simply popped the factory tweeters out of the factory surrounds (the retaining ring that is screwed to the interior) and glued in the smaller MBQ retainer. Worked perfect.

For the low's I cut out the factory speaker internals (ya got to break some eggs to make an omelet), and used the trusty dremmel to trim the remaining assembly to accommodate the Large MBQ speaker. In other words, I trimmed it to be a retainer for the new speaker. Again, perfect fit.

For the final touch I removed the speaker grill mesh from the grills. This is done by gently bending back the tabs from inside, press the mesh tabs flat with pliers, and then push them free. Once out, I shot them with 2 coats of gloss black and then re-installed them. A word of caution, you can only do this once as the thin speaker mesh tabs will only bend once or twice before snapping. With the speaker mesh back in their rings they looked like new, just like the new MBQ grills. The MBQ set includes little metal adhesive "MB Quart" nameplates, so I fixed them to the "re-freshed" grills on the factory tweeters and low grills. Looks real sharp!

I installed the 2 cross-overs in bi-wire configuration, and mounted them in the rear glove box. (I never used it anyway).

Those rear 6 speaker look and sound fabulous! I am waiting on the MBQ 210's to arrive so that I can install them in the doors. I can't wait.

A very good Porsche day,
Mike

heinrich

I know I know ... those S4's with good cats ... I have had ZERO emissions on one a few times ... similar to yours here.

Garth S

And a fine bowl of soup it is!! With results like that, I expect to see your picture in tomorrow's Globe & Mail for having made such an astounding environmental contribution: You and your S4 may be called in to preside over environmental conventions, consult on the progress of the Kyoto Accord, ..... why, the possibilities are endless: I hope they don't interfere with your newly found quality time behind the wheel - crank up the level on those MBQs and enjoy yourself: well done.

aircooler

Garth,

I would love for an official from the Fed or Prov liberals to come inspect my cars exhaust. However I fear that no mater how hard, and for how long I kick, they won't fit up the tail of my RMB

You got mail!

Cheers,
Mike

Nicole

There are two interesting aspects to your emissions test results:

1. Even a 928 S4 needs a cat to be really clean (even though lots of people say you don't because you can pass the sniffer test without cats)

2. My theory that a 928 with cats removed emits about 30 times as much toxic fumes is pretty close to being on target. That's the price for adding about 2-3% more power. A responsible choice?

aircooler

Hello Nicole,

"Even a 928 S4 needs a cat to be really clean (even though lots of people say you don't because you can pass the sniffer test without cats)"

I think you are absolutely correct. At least with my local emission limits there would be no way of passing without one.

"My theory that a 928 with cats removed emits about 30 times as much toxic fumes is pretty close to being on target. That's the price for adding about 2-3% more power. A responsible choice?"

Devils advocate here . Is owning a V8 a responsible choice? A high-breed/electric would be a responsible choice, but who would want to trade their shark?

I love my trees, but if I hug them too close, I get splinters.

Just kidding Nicole,
Mike

heinrich

My white car passes emissions just fine with no cats. Once I put them on, they have to check their equipment .... Compare this to my Ford vehicles which cause trees to die as I drive by ... yet ... they are .... emissions exempt.

Thaddeus

They recently discontinued testing here in the Twin Cities because air quality had improved enough. Now I'm seeing more and more beaters running around, looking unsafe and smoky.

It was a pain in the butt to get the car tested, but it really served a useful purpose. No inspections of vehicles for safety or compliance at all... Not cool.

perrys4

Congrats!! I also got told how clean my car was at its last examination. They were amazed that a car of this age did so well. Kind of cool.

Tony

Old & New

Nicole, Nicole, Nicole...

This is certainly not a green-centric forum!

T_MaX

That’s funny, but true Tony

How much pollution do you guys think all the worlds nations Air forces and Airliner Co. contribute to bad air quality?

Ground one C-130's and drive 100 60's hotrods 24/7 for life

Nicole

I don't consider myself "green" or a "tree hugger", just conscious and responsible. I have seen in various ways what uncontrolled emissions can do - I've seen forests almost disappearing in West Germany before we got the cats, and I've seen much worse in East Germany before the wall came down -- in some places you needed a knife to cut through the air. I woulnot want to experience that again, and don't wish anyone else to have to experience it. It's pretty shocking...

It's interesting that some of you seem to think 'Well, a 928 is not a responsible choice to begin witih -- that gives me the right to make it even less responsible.' If you compare the data that Mike posted, you can see that the S4 without cats emitted as much NO as about 22 928s with cat -- in exchange for a less than 3% gain in power. I continue to believe that the only way you feel those 3% is becaue the extra noise fools you into believing your car goes better/faster. The real life gain is neglectible -- if you really think you need it, you can swap the cat with a high flow metal cat unit and have the same effect. But I guess that's not cheap enough...

Granted, there are lots of other polluters out there -- indluding the plane Tony showed. And I agree that these should be regulated as well. It's not fair that they can still pollute. However, that does not make it right for us to pollute more than we have to. The 928 might be cleaner than some other cars, but that effect can be maximized without much penalty by leaving the emissions controls in place. In fact, there is a high flow cat available in Germany that - in combination with some software reprogramming gets the car into a much stricter emissions class AND adds about 30HP AND gives you the sound you would get by removing the factory cats. It's all doable, but takes a little effort (www.landsharks.de).

Back to the polluting plane (and all the other polluters): Ask yourself this: If someone else does wrong, does that automatically justify that you do wrong as well? If your neighbor beats his wife and kids, does it justify that you beat yours, even if you beat them less? Don't think so...

BTW: I do not consider a 928 with cats an irresponsible choice. Yes, it uses more gas than other vehicles, if you drive it the way it's meant to be. But it is much more economic than most full size trucks and SUVs, and it lasts forever. In that sense, the energy and raw materials used to manufacture a 928 was very efficiently used.

Since the 80ies, Porsche has made a point to be at the forefront of environmentally friendly technology for their cars. They basically realized that the only way the sports car has a future is, if it provides the fun without any unnecessary or unlawful pollution. Porsche was the first German auto maker - and probably the first in the world - that offered their cat equiped cars with the same power ratings as the non-cat cars.

The Porsche cat models were amongst the cleanest around. The 993 turbo was the first car in the world to have on-board diagnostics and all the fine stuff that would even comply with the strictest future standards known at the time. Whether you like it or not - Porsche is a very green company, and I could tell you a number of other examples in which they are green. If they weren't responsible, they would not sell many cars in Europe. Because people there are not just concerned about themselves - they do care about their surroundings as well, and are willing to contribute whatever is reasonable for them -- including having emissions controls on their vehicles. It's a small price - and over there it even saves taxes.

Tony

As a paying passenger, how much are you willing to see your ticket price increase?

T_MaX

"If your neighbor beats his wife and kids,..."

God, Nicole!

How sexiest! I'm hurt!

I couldn't help myself

Tony thats always the assumed argument, but I say they tax the share holders (Airliners) when they sell their stock or take it out of the crews pay