PorschePhD

David,
Cool, lets do it. Let me know if you need the address to the shop.

Chad,

I ran the original FS on mine for the dyno. The last stage IV I did, not Ryan's was on the new Fabspeed II version.

LOL, I can't leave you guys alone for four days!! See what happens <img border="0" title="" alt="[Wink]" src="wink.gif" />

Do you know someone to send a Ruf?

sharkster

Yummy those look like straight pipes almost

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by cobra06:
<strong>If loud is not an issue, which it clearly isn't as people are considering the Fabspeed as a good a sound, I'll send a version 7, that will rock your world.

<img src="http://boards.rennlist.com/upload/ver72l.jpg" alt=" - " /></strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">

sharkster

Nice one Stephen. Loads of us will really appreciate this and hopefully you won't get anyone shooting the messenger. There are so many claims and at least this way we'll have somebody independant that we all trust test this stuff out.

Cheers,

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by PorschePhD:
<strong>David,
Cool, lets do it. Let me know if you need the address to the shop.

Chad,

I ran the original FS on mine for the dyno. The last stage IV I did, not Ryan's was on the new Fabspeed II version.

LOL, I can't leave you guys alone for four days!! See what happens <img border="0" title="" alt="[Wink]" src="wink.gif" />

Do you know someone to send a Ruf? </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">

blunt

I don't think I've ever seen a more strange set of results. Usually different exhausts will make more power up top or down below but not by going from a margin of almost 30% ahead at a certain RPM point then end up making less power by nearly 20%. I'd love to see the graphs if you could post them and not just the text. So strange that I honestly couldn't believe it too well without seeing the comparison done in person.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by cjv:
<strong>Duane,

Here is the dyno sheets of Ruf vs Fabspeed. These were done in February 2002.

RPM's-Ruf RWHP-Fabspeed RWHP
2000..074.0....083.8 Fabspeed
2500..107.0....123.4 Fabspeed
3000..151.6....179.0 Fabspeed
3500..216.1....273.8 Fabspeed
4000..282.9....339.1 Fabspeed
4500..343.2....349.0 Fabspeed by a nose
5000..399.6....368.4 Ruf
5500..457.6....382.8 Ruf
6000..499.1....440.1 Ruf
6500..519.7....432.6 Ruf
6750..n/a......494.7

The power range of the two exhausts is very different. The question would be .... what power range do you normally engauge. My personal choice is 3800 to 4000 rpm engaugement range. If I shift at 6500 then I recover somewhere between 4500 and 5000 rpm's.

Fabspeed prevails from 2500 rpm thru 4000 rpm's. It is almost a dead heat at 4500 rpm's with a approx. six rwhp edge to Fabspeed. From 4500 thru 6500 Ruf produces more power. Fabspeed does not recover until 6750 rpm's. Up until that point maximum rwhp was 440.1 rwhp.

* Note: the car was tuned for the Ruf exhaust not the Fabspeed exhaust. I do not know what change to afr the Fabspeed produced.

My, how rwhp has changed over the last year. I'll tell you what, if Fabspeed wants to send a set of their exhausts to S Car Go Racing and take care of costs for installing and dyno, then I'll donate my car's time. Rob King may even donate his install time, I could ask. This run would be Fabspeed versus Europipe on my car. <img border="0" title="" alt="[Eek!]" src="eek.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">

Duane in Miami

I agree with ken the test needs to be performed on a stock car.......That might be a problem since we are all mod heads. <img border="0" alt="[king]" title="" src="graemlins/r.gif" /> Anyone want to send there car to KC???????????? <img border="0" alt="[jumper]" title="" src="graemlins/jumper.gif" />

996TTR

Stephen,

I would be happy to send my Ruf exhaust(that I bought from Chad). I just need to know how long you would need it for. Let me know and I will see what I can do. If not maybe Weissach would send one. I also hear that 9ff is interested in selling more of their products in the US and they may be willing to send their exhaust. I has a electronic switch that controls the valve and is pretty quiet in the closed setting. Maybe the testing can start with the stock exhaust so that everyone can see the increases over stock.

996TTR

Shank996TT

Duane, I don't think the test should be on a stock car. The AFR should be adjusted for each exhaust. Much more realistic "POTENTIAL" numbers can be discovered with testing a Tuned car.

PorschePhD

I can revert the program back to stock and adjust. At that point the only real addition is my turbos and the exhaust. The base line will be created with a stock run and we then can look at the difference. If the census says run 600HP then we can do that too. I am game either way.
996TT- This is great. Above the call of duty for sure. Lets see if we can get Ruf to send one so you aren't out the time and your car...If all else fails then we can do it that way. Someone have a contact at 9FF. I am game for that....

KPV

I agree with 996TTR regarding starting with the stock exhaust. I think this is an important first step. I guess it is really immaterial whether the motor is or isn't stock since it will be a constant throughout the test and, theoretically, only the exhaust will contribute to changes in performance. Starting with a stock exhaust as a baseline, however, will show what gains are possible with each system. It will all be relative in the end.

msindi

Ok guys, everything here is on hold until i get your results....
I am putting on the Brembo 8-pistons in a few hours and am waiting to dyno the upsolute before i decide if I am sticking with it or going back to my original GIAC plan.
Let me know ASAP - I need to order an exhaust!!
Please not that sound matters to me a bit more than power!!

cobra06

Stephen, I can have one out to you sometime next week .

cobra06

RE: testing back-pressure. You can use the test port on stock exhausts, but the others will have to have a bung placed in front of the cats.
I have a BP gauge, I also have an airflow meter which may have some interesting info to offer.

Joe@Fabspeed

Chad...I wasnt attacking you....I just thought that you thought that the Europeans made everything better than what is made in the USA.

Cobra my Fabspeed Exhausts are not that loud. Fabspeed Motorsport essentially has 3 different exhaust systems: a SUPER SPORT version is aggressive sound V#1, and SPORT version medium sound #2, and lastly since its modular anyone can delete the mufflers entirely and run straight pipes right after the catayltic converters version#3. All Porsche owners are different and it makes sense to offer different levels of sportscar sound.

FYI version#3. This last sound level is Kinda Kool as the net result sounds like 1980's Kremer 935 or Holbert Racing Lowenbrau 962 idling through the pits @ Daytona ....a racing deja vu that makes you smile BUT....but best of all can be quieted down by installing the V#1 or V#2 muffler system in under 30 minutes!

Rob@ S Car GO gave me presure readings for the Fabspeed Supersport system and they were over 50% less than the $5000 RUF or factory Porcshe OEM system. He said the horsepower spikes were because something was wrong with the car and the Fabspeed exhaust given its truly freeflow design should should over +50HP if everything was operating correctly. Either exhaust system V#1 or V#2 will have the same backpressure as once the exhaust gets through the catalytic converter.......you can roll a golf ball right out the tail-pipe of any 996TT/X50/ or GT2.

PHD-let Alex, Glen, Dan or I know when you need the systems and we will ship out asap.
Have a great day

KPV

Cobra06,
If I am not mistaken, the Europipe has a test port with a bolt in it. It is next to one of the O2 sensors.

Pete.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by cjv:
<strong>If you don't have kats you won't pass smog. <img border="0" alt="[oops]" title="" src="graemlins/oops.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">California Turbo owners might want to consider this bit of CA law:

"New vehicles exempt until their fifth year

Vehicles four model years old and newer (model years 2000-2003, for registrations due after 1/1/2003) are not required to have a biennial Smog Check performed until their fifth year. However, these vehicles must have a Smog Check performed if the vehicle is sold or being registered in California for the first time during that time."