S-Line Motorsports XXX-Pipe Group Buy Info

Oh - I stand corrected Didn't realize some were made overseas.

 

Okay - never run one of these before, but the app read 98dB at idle and peak of 115.2 dB at 4500-5k RPM at a distance of 8ft from the rear of the car. The app is SPLnFFT which gave the closest to accurate readings in a 3rd party test of several of the iPhone app options.
A quick search showed the stock exhaust around 96dB based on a post here on Fchat (Stef430 back in 2010 from a track day) and 104dB by Car and Driver at full throttle.
Not sure if that helps anyone, but there it is. Alwin - if you have a min, maybe do the same thing and see if yours is the same/similar?

 

Did anyone do a temperature comparison between this unit and stock since we always worry about discoloration of the CF?

 

Not yet, outside of Alwin's gut check. The pipes sit much further away from the CF though...but I have little basis for comparison as I didn't leave my stock system on all that long after I got the car (my stocker was always running valves open while I had it).
I have an IR thermometer, but I would have to wait till Darren is back from COTA to have a stock one to compare side by side with doing the same drive/day/conditions/etc.

 

I will track down my infrared gun and try to get a measurement and benchmark it against my old readings from the Kreissieg setup and oem setup.

Worth noting too is that the key here isn't just the drop in max temperature with the x-pipe, it is the actual rate of heat dissipation. The oem exhaust unequivocally holds+retains heat for much, much longer. It was stupid to be honest, I could have probably had quite a bbq ontop of the oem box.

 

3 I think as of this morning. 5 left (as any more and they can't get them all made in time for shipping by middle of next month).

 

Thanks for this info, it helps a lot. The sound pressure readings are quite loud. It would never pass a noise ordinance in California or most other places, so buyer beware. Also, a lot of tracks are instituting a 90dB sound limit, so could be an issue as well. Just wanted to make sure everyone is aware since this would no longer be a valved system to quiet it down for the popo. With all of that said, this system is beginning to sound better all the time. See if you can get comparison to OEM readings too, both outside and inside the car.

These temps would be quite helpful as most Scud owners are concerned with the CF heat discoloration issue. Without knowing the characteristics of the CF resin and clear coat, we simply don't know at what temperature the discoloration occurs. Probably a combination of temp/time and also an absolute temp. The removal of the massive heat sink is definitely a step in the right direction, but demonstrating a true drop in temps over OEM would make a lot of us feel better if it was significant.

Excited to see the dyno graphs but I'm not holding my breath here. Does anyone with this current setup have an ET logger device? (there are some apps for the iPhone too) Get some 0-60 feet, 0-100 feet, 0-1000 feet, 1/8 mile, and 1/4 mile readings comparing OEM to this setup. Then you will know if it just "feels" faster or "is" faster.

Very nice quality of construction BTW. I don't have an issue with the price, given the materials, workmanship, and R/D that went into this project.

A bit more objective info and I might just order one of these setups.

 

Ok I am in for one. But I do have one more question. How muchmless heat does the coated version have compared to say...a polished one? My choice will depend on the answer(s) posted.

Thanks again.

 

Well the latest rev of the ceramic coating is both inside and out I believe to keep temps under control. So it almost definitely runs a little cooler than the polished, but I am not sure the change is super significant. After seeing Alwin's polished one, it made me want it shiny

 

120 degrees.

 

Yes I prefer shiny (polished as well) but if the coated one had a significant difference, then of course I'd go for that.

I guess stick me down for a polished one then.

Thanks.

 

Is this a fact? 120 degrees is pretty significant no?

 

No, I pulled it out of my butt like every time I give advice to those in need. Come on. What kind of question is that? If I don't know the answer, I don't post.

The person who does the ceramic coating for S Line has three ceramic coating treatments. I brought him a full LM exhaust for my F40 and he ceramic coated the inside and out. He said that I would experience around a 120 degree reduction in temps. I didn't have them on my car prior to coating but they do run surprisingly cool with the treatment. You can touch the pipes only a few minutes after putting the car back in the garage. In case you're wondering, I had the pipes coated to help preserve the lexan rear window on the F40.

So yes, the 120 degree reduction is a fact straight from the powder coater and yes, it is significant but when you factor in how hot exhaust pipes get, it's not as much as you might think.

 

Is ceramic coating 120 degrees cooler than polished ones?

 

Damn Sherpa - Ninja! I didn't know it was that significant.

 

I'll get a dB reading tomorrow of the stock exhaust with valves open if no one else does.

Question for you guys. Is this exhaust something I can easily install myself or do I need a shop to do it?

 

IMO - the harder part of that equation is getting the stock one off.

 

You sound pretty defensive already, so this will surely not go well...

1. You are not stating facts. What piece of information you are perpetrating as "fact", is actually hearsay. You heard it from your powder coater.
2. Your powder coaters comments were, by your own admission, referencing an F40 exhaust. Quite a different animal.
3. 120 deg F is substantial for the cat-back system. Headers run 800-1200 deg F (I have measured mine with thermal strips and an IR gun). But post cat they are significantly cooler. Here are some thermal FLIR images from a fellow chatter. https://www.ferrarichat.com/forum/technical-q/363349-f430-thermal-images.html

Another chatter reports the Capristo silencer at 126 deg C. Thats 258 deg F, so 120 deg F drop is almost 50%. The blankets capristo makes dropped the temp about 140 deg F, or so says lilleprins empirical measurement.

On Topic; I would guess that the polished stainless would radiate higher temps than the OEM insulated units (*assuming the scuds use a similar insulated unit as does the 430). I would also assume that the heat soak on the XXX-Pipe would be better because the mass of the system, and thus its ability to store thermal energy is higher at a rate approximately proportional to the delta mass. I would also estimate that a ceramic coating is no match for dual walled with a sandwiched insulation configuration.

I can't find the source, but I bought very high temp thermal strips for my engine bay, stuck them to everything to record empirical max thermal data.

 

No offense, but I don't know you or ever had any form of communication within F-Chat with you either. So I didn't know where you were coming from. That said I don't think I worded my question in an offensive fashion. Unless in your mind you read my previous post with a different tone than what was intended. (that obviously happens on the internet).

Regardless, appreciate the feedback and I will take that into consideration. Considering that I don't intend to track my car, I wonder if I would even be someone who needs the coating to reduce the heat. So now it's a decision between polish (visual) vs. coating (functional)...hmmm...

 

So do you know which of the 3 coatings that person is applying for the S-Line system for the Scud? And which of the 3 is the one that reduces temp by 120 degrees? Is it the best of the 3 or is there an even better choice (of the 3) that can reduce the temp even more.

I agree with Trent that your system is an F40 application which is different from a Scud. That said, I would also appreciate those that have an actual Scud coated S-Line system to post some readings.


Dbonvillian, do you know if the coating for the Scud system is also both inside and out?

 

Let's take this step by step.

"You sound pretty defensive already, so this will surely not go well…"

Well you sound like a splendid chap. I'm sure your apartment is filled with many leather bound books and smells of rich mahogany.

"1. You are not stating facts. What piece of information you are perpetrating as "fact", is actually hearsay. You heard it from your powder coater."

Technically, if you buy the S Line piece with the ceramic coating on it, I in fact heard it from YOUR powdercoater. It's the guy who does the S Line parts with the same coating they use. I made that clear in my first post. If I was told this directly by the person who does the coating on these pieces, how is that hearsay? It's direct testimony by the same person telling me what his coating does when applied to exhausts. Again, it's the same guy, same coating, on an exhaust. I don't know how it can be any more accurate than that. I stated that clearly in my post. I guess if he told you himself that would be hearsay, too.

"2. Your powder coaters comments were, by your own admission, referencing an F40 exhaust. Quite a different animal."

No, it's the coating that he was testifying to, not the system. His words are that his coating (again, the SAME coating that's on the S line stuff as it's the same powdercoater) reduces the surface temps by 120 degrees on exhausts.

"3. 120 deg F is substantial for the cat-back system. Headers run 800-1200 deg F (I have measured mine with thermal strips and an IR gun). But post cat they are significantly cooler. Here are some thermal FLIR images from a fellow chatter. https://www.ferrarichat.com/forum/technical-q/363349-f430-thermal-images.html

Another chatter reports the Capristo silencer at 126 deg C. Thats 258 deg F, so 120 deg F drop is almost 50%. The blankets capristo makes dropped the temp about 140 deg F, or so says lilleprins empirical measurement.

On Topic; I would guess that the polished stainless would radiate higher temps than the OEM insulated units (*assuming the scuds use a similar insulated unit as does the 430). I would also assume that the heat soak on the XXX-Pipe would be better because the mass of the system, and thus its ability to store thermal energy is higher at a rate approximately proportional to the delta mass. I would also estimate that a ceramic coating is no match for dual walled with a sandwiched insulation configuration.

I can't find the source, but I bought very high temp thermal strips for my engine bay, stuck them to everything to record empirical max thermal data."

I don't see a question there to respond to but I'm sure you will let me know if I have that wrong.

 

No worries. I usually don't post in this section because there's rarely anything of value for me to add and there's not a lot that I am trying to read up on. But I have been on F chat for a long time.

The one I used is the black one, which is the same one that S Line is using (from the pictures). I chose it because it's specially developed for turbo applications and has the most heat protection. You can be your own judge of whatever you'd like. I'm just sharing relevant, direct, and honest information so that it can help you guys make the best decision possible.

 

Couple videos of my buddy's 16M with this exhaust.

[ame]http://www.youtube.com/watch?v=LucbsoielB4[/ame]
[ame=http://www.youtube.com/watch?v=BcDRliczEuU]Kaizenspeed - Dyno Day 2013 - YouTube[/ame]

 

Yes, it is - it had to be to handle the heat back there.

 

Hugh posted his dyno results against baseline:
http://www.ferrarichat.com/forum/142729737-post52.html