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Old 08-13-2012, 10:27 PM   #2601
Celery GT-5
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Quote:
Originally Posted by xluben View Post
Well, maybe this is funny?

I thought NASIOC e-mail notifications were broken. I even made a thread about it. Today I checked my Spam folder and I had over 200 e-mails from NASIOC in there!

I am an idiot. Apparently I clicked "Spam" instead of "Archive" (buttons are right next to each other in GMail. Hopefully it's all fixed now. I guess we'll see soon...
been there, done that
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Old 08-13-2012, 10:31 PM   #2602
INKMAN
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I haven't gotten an e-mail notification in a looooong time. I use Yahoo. What could I have changed by accident?!
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Old 08-13-2012, 10:43 PM   #2603
xluben
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Originally Posted by INKMAN View Post
The stuff you put on your car is cool but I really like looking at your pictures more sometimes. They are awesome.
LOL. I didn't think these were anything too exciting.

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Originally Posted by Celery GT-5 View Post
been there, done that
Quote:
Originally Posted by INKMAN View Post
I haven't gotten an e-mail notification in a looooong time. I use Yahoo. What could I have changed by accident?!
For me it was just the spam filter, apparently. Working fine now!
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Old 08-13-2012, 10:50 PM   #2604
INKMAN
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Originally Posted by xluben View Post
LOL. I didn't think these were anything too exciting.



For me it was just the spam filter, apparently. Working fine now!
Maybe it's because I'm always seeing blurry cell phone pics for stuff like this. It's refreshing to see nice, clean, professional looking photos!
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Old 08-14-2012, 07:50 AM   #2605
Dale2011WRX
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So after all that... turbo blanket? Really?
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Old 08-14-2012, 08:05 AM   #2606
xluben
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Yeah, sorry
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Old 08-15-2012, 11:25 AM   #2607
besthaticouldo
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Exhaust Exhaust Exhaust!
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Old 08-15-2012, 11:30 AM   #2608
xluben
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Originally Posted by besthaticouldo View Post
Exhaust Exhaust Exhaust!
Haha. It's going to be a while. I'm waiting on the go-ahead to post anything.

Anyone want to debate/speculate on whether or not it will add any power?

Quote:
Originally Posted by xluben
Quote:
Originally Posted by erik11876 View Post
I think in your setup with a EWG, a catback is going to be far less noticeable at WOT powerwise, path of least resistance being what it is. Partial throttle it could make a difference though.
Yeah, that is another thing to consider. I had always thought it didn't really matter, but then I saw this post on IWSTI and it has gotten me thinking. It's a 2010 STI with GTX30R rotated setup on pump gas. If you look at just the 2.6L plots you can see that there were significant gains when comparing the HKS Legamax exhaust vs. no cat back at all. The HKS exhaust is 65mm (~2.5"), so it is probably fairly restrictive (but probably not as restrictive as stock).

Quote:
Originally Posted by qatchup View Post
I currently have the HKS and it does not flow well enough that is the problem.

Here are the dynos so everyone can see the issue, 91 octane CA, GTX30R:


Just eyeballing the plots, you can see that removing the cat back completely helped the top end out a lot. Basically everything above 4,500rpm's saw pretty decent gains. All the way from ~25WHP up to close to 50WHP at redline. This is an externally gated setup as well.

Code:
RPM    HKS    No Exhaust    Increase
3000    110    110        0
3500    160    160        0
4000    255    270        15
4500    330    355        25
5000    355    380        25
5500    375    405        30
6000    375    410        35
6500    370    415        45
7000    365    415        50
The other thing driving my curiosity is that I recently swapped my stock exhaust for a single exist, and it actually does feel faster. Everyone always says the cat back doesn't matter "much", but it seems that at some power level it does make a measurable difference. I was hoping we could get some more hard data on this, but it's probably not something a lot of the high power guys test out, because they usually have high flow exhausts already.

I'll hopefully be able to post some results from my new setup soon. I have a good baseline to work off of, and the only thing I swapped was the cat back, so it should be a good comparison. I know the butt dyno thinks it's faster, but I am way too skeptical to trust that
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Old 08-15-2012, 11:43 AM   #2609
Jdub.csu
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I'm going with no real change because of EWG
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Old 08-15-2012, 11:46 AM   #2610
xluben
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Originally Posted by Jdub.csu View Post
I'm going with no real change because of EWG
That's probably what I would think too, but the butt dyno seems to think it's faster...
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Old 08-15-2012, 12:03 PM   #2611
Jdub.csu
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Quote:
Originally Posted by xluben
That's probably what I would think too, but the butt dyno seems to think it's faster...
Could be due to it being cooler?
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Old 08-15-2012, 12:12 PM   #2612
xluben
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Quote:
Originally Posted by Jdub.csu View Post
Could be due to it being cooler?
Compared to a month ago when it was high 90's to 100F the car is definitely faster (with either exhaust). But over the last couple weeks it had been in the 70's and 80's for highs and 50's and 60's for lows. The car felt faster than the hot days, even still with the stock exhaust. Now that I have the new exhaust it has been similar weather to the last couple weeks and it feels even a hair faster than before. I have prior logs from before I swapped, so I should be able to do a comparison.
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Old 08-15-2012, 12:14 PM   #2613
Celery GT-5
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u should make a speedo vid since you can't post pics ftw
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Old 08-15-2012, 12:20 PM   #2614
xluben
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Originally Posted by Celery GT-5 View Post
u should make a speedo vid since you can't post pics ftw
I actually did one last night. Around town you really couldn't hear anything much in the video. Just sounded like a quiet exhaust. I did a WOT pull and you just hear EWG. Sounds about the same as before in the video.

I might still post the video(s) after I edit them, but they really don't seem that helpful. Kind of misleading actually. Maybe I need a better microphone for my camera...
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Old 08-15-2012, 12:30 PM   #2615
besthaticouldo
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im sure its going to be an up top increase. its got better flow. ive debating going single tip.
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Old 08-15-2012, 01:24 PM   #2616
Mike 01Hawk
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I'd love to go 2OTL, thanks Subaru for making the bumper impossible to do that :sadnana:
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Old 08-15-2012, 01:29 PM   #2617
xluben
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Originally Posted by Mike 01Hawk View Post
I'd love to go 2OTL, thanks Subaru for making the bumper impossible to do that :sadnana:
Two tips on the left? Why couldn't you do that?
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Old 08-15-2012, 03:34 PM   #2618
Celery GT-5
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Quote:
Originally Posted by xluben View Post
I actually did one last night. Around town you really couldn't hear anything much in the video. Just sounded like a quiet exhaust. I did a WOT pull and you just hear EWG. Sounds about the same as before in the video.

I might still post the video(s) after I edit them, but they really don't seem that helpful. Kind of misleading actually. Maybe I need a better microphone for my camera...
yeah its hard to get a good in cabin exhaust clip unless its something super loud.
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Old 08-15-2012, 04:27 PM   #2619
ofspunk7
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Originally Posted by xluben View Post
Anyone want to debate/speculate on whether or not it will add any power?
Can I play?
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Old 08-15-2012, 04:32 PM   #2620
xluben
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Can I play?
You are the absolute worst at this.
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Old 08-15-2012, 04:34 PM   #2621
Celery GT-5
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can you say if its fart can style or something a bit more grown up looking? lol
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Old 08-15-2012, 04:35 PM   #2622
xluben
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No. Hopefully Derek doesn't either.
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Old 08-15-2012, 05:23 PM   #2623
ofspunk7
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Originally Posted by xluben View Post
No. Hopefully Derek doesn't either.
LOL, just making sure you're awake. I don't know anything. Therefore, there is nothing to say.

On a totally different note, you would have liked the civic rolling through my neighborhood after dark last night. Looked like two kids up to no good. I think they were both bald. Must have been in a gang.
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Old 08-15-2012, 06:01 PM   #2624
Mike 01Hawk
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Quote:
Originally Posted by xluben View Post
Two tips on the left? Why couldn't you do that?
Because on my Sedan there are cut outs for both left/right.

It would be like trying to do a 2OTL on a Trans-Am without the Firebird Bumper

For ref of course:
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Old 08-15-2012, 06:33 PM   #2625
xluben
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Originally Posted by ofspunk7 View Post
LOL, just making sure you're awake. I don't know anything. Therefore, there is nothing to say.

On a totally different note, you would have liked the civic rolling through my neighborhood after dark last night. Looked like two kids up to no good. I think they were both bald. Must have been in a gang.
^Don't worry everyone. Derek is just my super sexy annoying friend that is always in the garage and he's on the NF team that helps with install and tune.

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Originally Posted by Mike 01Hawk View Post
Because on my Sedan there are cut outs for both left/right.

It would be like trying to do a 2OTL on a Trans-Am without the Firebird Bumper
I guess it comes down to whether or not you want 4 useless tips to look cool, or something made for PURE PERFORMANCE!!!!
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