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Old 03-05-2008, 09:36 AM   #101
BIGSKYWRX
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damn- not what I was hoping to hear

it's really looking like sustained "cruising" is what triggers the cel more than anything- of course if your car is untrailered like most- that's generally how we get to the events
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Old 03-05-2008, 09:48 AM   #102
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But, I crusied at 3200 in 5th from Knoxville to Valdosta, GA - which is 6.5 hours each way. I just don't get it.

I don't really care to run another cat in the midpipe, as I don't think there will be much power loss, really, but I just don't have the cash for it right now. An extra $300 is enough to keep me from being able to attend one of my scheduled "big" events this year.
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Old 03-05-2008, 10:07 AM   #103
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Too many variables is the problem. The temperature, the humidty, altitude, brand of gas, quality of gas, and dozens of other variables can all be the trigger.
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Old 03-05-2008, 10:13 AM   #104
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TurboXS called yesterday to say that my two-cat downpipe was done... so I should have some "data" on that (meaningless though it may be) soon.
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Old 03-05-2008, 02:00 PM   #105
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Did they make it using their huge 4" downpipe?
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Old 03-05-2008, 05:14 PM   #106
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I think, and I can't remember why, that it's based off a 3" downpipe. I'll take pics when I pick it up.
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Old 03-08-2008, 07:26 PM   #107
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Picked up my exhaust from TurboXS on Friday.



It weighs about 8-8.5 pounds according to my super accurate bathroom scale measurements. It has two metal cats, and they are actually stamped:



According to Andy Hollis's STS/2 "legal" cat thread:
http://sccaforums.com/forums/thread/274202.aspx

It looks like they are Magnaflow cats (because of the CE). I didn't actually tell TurboXS that I needed EPA legal cats, just that I was trying not to throw a CEL, but it's a nice bonus that they are stamped (in case I move to CA or something, I guess!). Now, I don't know if it's certified for my vehicle type and all that junk, because reading that thread on SCCAForums makes my head hurt (again). I figured that the rules were at least somewhat intuitive for STS/2 but I am struggling to see the "easy" way to figure out if my cat is certified for my car.

Fortunately I am not in STS/2 so I don't care.

Anyhoo, once I get this installed and my car running again I will flash back to the stock basemap and DD the car again for a little while (65 miles a day most days) so that I can see if I am slightly less federally illegal than I was before.

One nice thing is that it doesn't require me to change the whole damn turboback, since my catback pieces will just mate up to the end of the TurboXS race pipe (not pictured). The bummer, however, is needing to get the car re-tuned - I don't think I want to blindly throw it on there with my existing ProTune and see what happens

edit: OK, looks like it's legal? Magnaflow 59959 information:
http://www.performance-curve.com/ind...OD&ProdID=1212
Quote:
Coverage EPA / Federal OBDII

* Function - 3 Way
* Engine Limit - 5.2L / 322 CID
* Test Weight - 4500 lbs.
I know I'm fine on engine limit and test weight, but function? eh?

According to ls1tech the Magnaflow 59959 was tested to flow 570 CFM. According to Chris's thread last year, the Randomtech ones flow 613. Not bad considering the xcceleration turboback costs about a bajillion dollars. Actually, the xceleration site says that the 3" cats only flow 502 cfm? I dunno.

The bung is, IIRC, right at the beginning of the race pipe:


I'm hoping for the best. Will post details as they are available

john

Last edited by Butt Dyno; 03-08-2008 at 07:46 PM.
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Old 03-08-2008, 09:07 PM   #108
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John- nice I was thinking jdm length downpipe w/ two cats- didn't even know they could get two in a "normal" length dp- very interesting!

Mike
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Old 03-11-2008, 10:14 AM   #109
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Another 300 miles and I'm back to 0 codes, all monitors ready, No CEL.

AutoX rules are awesome!
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Old 03-11-2008, 10:22 AM   #110
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which reader do you have? it show "ready" status etc?

I have a delta dash (which shows cels and the like), but it doesn't show the OBDII compliance stuff

also did you test to see how long it takes to go from cel to ready status- I'm guessing simply re-setting the ECU does not equate to "ready"?

thanks
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Old 03-11-2008, 10:43 AM   #111
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I have an Actron pocket scan - it was only $49 on ebay. It will show the ready status of each individual monitor, peding codes, etc.

From what I've been able to tell, it doesn't take me long to go to ready status, but I haven't done a "scientific" investigation. I cleared the cel one evening and checked it the next day after driving 40 miles to work round trip, which is mostly interstate, but some back roads. It was ready.

If I clear the cel with the scanner, it put 3 of my monitors into "not-ready" mode.

I am going to try to get the car to throw the light by cruising in 4th gear again. Cruising in 5th doesn't do it.
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Old 03-11-2008, 02:44 PM   #112
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i'll have to pick up one of those scanners- thanks for the tip on it

interesting-almost all of my "cruising" is in 5th (Interstate) but occasionally on some of the lesser highways/biways it is 4th
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Old 03-11-2008, 04:01 PM   #113
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Just got my exhaust all put together; gutted UP, Stromung shorty DP, Mad Dad 3" HF cat w/O2 sensor post cat and 3" mid pipe. Still gotta get my front suspension back together before I can find anything out, maybe by this weekend.
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Old 03-12-2008, 11:28 AM   #114
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Well, cruised around in 4th at 3k as much as I could yesterday - no CEL.

So frustrating.
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Old 03-12-2008, 11:34 AM   #115
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hmmmm- I guess that's good- kind of

would you mind posting the model # of your scanner- turns out there are a bunch of them (actron)

tia
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Old 03-12-2008, 11:57 AM   #116
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Looks like it is the CP9125
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Old 03-12-2008, 12:12 PM   #117
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It took 20,000 miles for mine to come on - keep trying
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Old 03-12-2008, 01:36 PM   #118
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My CEL has only come on once since removing all CEL defeats in early February. It happened on a long stretch of open road where I was cruising in 4th gear at 47-48 MPH for a few miles, then slowed to 43 MPH for a slower speed limit. The CEL came on shortly after reaching the slower speed.

I have a Cobb stainless steel uppipe, a ceramic-coated Stromung divorced wastegate downpipe, and a Stromung 3rd cat pipe.
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Old 03-13-2008, 09:45 AM   #119
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Quote:
Originally Posted by ButtDyno View Post
Picked up my exhaust from TurboXS on Friday.
man, that looks awesome!!!

I can't wait for the results!

if you don't mind me asking... what did that cost???

I'm using the Random tech/xcelleration set-up now.. with Zero problems. ~10K miles.. no Po420 codes..

I check for codes often usign both my Tatrix cable, and my V1 AP..
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Old 03-31-2008, 05:52 PM   #120
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Well, about 80 miles put on around town now and 1 event. At about 60 miles my OBD I/M test on the Actron scanner showed every monitor ready EXCEPT the O2 sensor, even catalyst came up as ready, and at this point, at almost 90 miles, the O2 sensor is still coming up "not ready".

Checking the OBD I/M system after every drive is really beginning to become a bummer, from what I can tell so far, anyone that shows up at Nationals with a WRX that has less than 90 miles on the trip meter is, potentially, easy protest bait.

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Old 03-31-2008, 07:34 PM   #121
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that's not good news- all the WRX guys yawning in the morning from driving around at night to get the sensors "ready"
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Old 04-02-2008, 12:18 PM   #122
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I finally had the ECU reflashed and CEL's turned back on. I'm up around 300 miles on the APS turboback w/ single cat. No lights yet.
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Old 04-02-2008, 12:57 PM   #123
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I have something to run by you scrutineers:

At the beginning of the thread my intention was to weld a second cat (magna flow universal) into my Cobb DP. Well I'm lazy and the end result is there are some packaging considerations that limit the ability to actually do this. And you still wouldn't know if it was benificial.

1. There's only around 7.75 " of flat between the first 2 bends in the DP. The cat has an overall length of 9"
2. Even though I could cut the cat down, as there is ~ 3" of useless extention on it, I fear my A/C condensate hose would become a firey mess due to O.D.

Prior to Nationals last year I welded in an additional o2 bung ~ 4" behind the one supplied on the Cobb DP. My thinking at the time was, I needed to replace the one I had been using with the resistor with a new one and I'd try to get it further back so it was not so directly in the exhaust stream.

So here's my revalation:
I have 2 o2 bungs in my DP
I have a new o2 without a resistor
I have an old o2 with a resistor

I run both sensors. Resistor when not at an event. Non-resistor when in competition.

I could even install a switch to toggle between them. Simply ready state at all times, I'd bet. Is there a rule as to how many o2's you can have?


So here's the questions:
Shady?
Suspect?
Protest Bait?
Legal?
Illegal?
Laughable?
Genius?
Super Genius?


Believe me I've been in the box and out of the box with this clarification. So i'm not posting this to be a jerk.
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Old 04-02-2008, 01:10 PM   #124
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If there is interest, I have a source for a short body 100 cell cat that can be welded in anywhere there there is an ~5.25" section available, even on a curve.
Lightest wt. and best flowing cat out there, would also make a good aux cat.

The race cats were on the top finishing STX/U cars at the recent SCCA Tour and ProSolo cars. Of course it was on the winning Super Challenge car also - horn toot!

Let me know as I'm making an order soon.

Rick

Last edited by Evoracer; 04-02-2008 at 01:21 PM.
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Old 04-02-2008, 01:18 PM   #125
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Randomtech? What CFM?
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