Legend Posted January 14, 2012 Share Posted January 14, 2012 In line as we speak to get tested w/ cnt catted dp on e85 tune, crossing my fingers in the hopes that I don't have to put stock dp on, results in a few Good luck!! It can be done but it definitely takes crossed fingers. If you fail make sure to get the report - and post it. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
LGT For ME Posted January 14, 2012 Share Posted January 14, 2012 Heck yeah I passed !!!! They tested it twice, it was on the rollers a good 15 mins. I'll post up the #s when I get home Link to comment Share on other sites More sharing options...
Legend Posted January 14, 2012 Share Posted January 14, 2012 Heck yeah I passed !!!! They tested it twice, it was on the rollers a good 15 mins. I'll post up the #s when I get home Awesome. I say it is always worth a try first rather than going straight to stocker DP swap. Congrats! My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
LGT For ME Posted January 14, 2012 Share Posted January 14, 2012 ^Agreed I was going to swap out the dp until Sspeed told me that if you fail you can come back and get retested for no cost w/in 10 days, so I gave it a shot and it passed. They didnt do any type of visual inspection on my car at all, so worry free for the next 2 yrs Link to comment Share on other sites More sharing options...
Richard T Posted January 18, 2012 Share Posted January 18, 2012 Threw on the stock DP and mid on Sunday. Tested today and passed. The CO almost failed me though: HC 0.5153 out of 1.2000 CO 14.5539 out of 15.0000 NOx 0.0289 out of 1.5000 Link to comment Share on other sites More sharing options...
SSpeed Posted January 18, 2012 Author Share Posted January 18, 2012 Whoa! CO that high on a stock down and midpipe is not good... CO like that either means you're pig rich or your cats are bad.... actually, even the HC seems high... Link to comment Share on other sites More sharing options...
Richard T Posted January 19, 2012 Share Posted January 19, 2012 Yeah, it concerns me a bit. I need to investigate more. What would kill a cat? All of my stock exhaust components have been stored outside for the last 4 years. Actually had to fish for them under a foot of snow at my parent's place a month ago. I can't imagine that would deteriorate them, would it? In any case, my plan is to put the catless down back on and find/pay someone to help me with a data log and take it from there. I never logged in the 4 years I've had the tune. One other thing, but I doubt it's relevant. I didn't reset the ECU or anything after reinstalling the stock pipes. Just left the Revolutions tune in place with whatever learning it had done in the last 2 or 3 months. I'm probably just throwing shit at the wall at this point. Link to comment Share on other sites More sharing options...
SSpeed Posted January 19, 2012 Author Share Posted January 19, 2012 Storing them outside definitely can't help, but I doubt that's the problem... your HC numbers are higher than mine were with a hi-flow cat... Get a hold of cryo on here, he does road tunes at a nice price... Link to comment Share on other sites More sharing options...
Richard T Posted January 19, 2012 Share Posted January 19, 2012 Good advice. I met Cryo at a summer BBQ so I’m definitely familiar with him. And little does he know I’m an old DSM guy, myself. Sorry this veered off topic for a bit! I’m done cluttering it up. J Link to comment Share on other sites More sharing options...
SSpeed Posted January 19, 2012 Author Share Posted January 19, 2012 Hey, I'm an old CODSM guy too... Link to comment Share on other sites More sharing options...
Richard T Posted January 19, 2012 Share Posted January 19, 2012 Sweet! GVR4 FTW. Now I'm done Link to comment Share on other sites More sharing options...
SSpeed Posted January 19, 2012 Author Share Posted January 19, 2012 Nice, you had the cool DSM... I had a '96 Talon... 13.1@104.5 was my best 1/4, mostly because I had no idea how to tune... I still regret not going in to the 12s before selling it.. Link to comment Share on other sites More sharing options...
tLewis7 Posted January 21, 2012 Share Posted January 21, 2012 Originally Posted by tlewis7 Yesterday visited Mike @ 5250 Performance to convert my CNT catted to his prototype single race cat street compliant set-up (on gas) as part of testing. There is something about walking into a facility that was so neat and clean you could eat off the floor and Mike greeting you with, "You must be Tim," that puts you at ease. Got a turbo blanket installed while I was there too. Just to break up the morning he took me on a "field trip" to meet Harvey (The Boost Creep) a block away to see how the first several pulls went on a 2011 STI project he had just completed. I was impressed. Thanks Mike and Harvey! Very nice/skilled guys. Will be doing an emissions test next Friday to get Mike his data and will report back then. Just back from the emissions test: One guy came up to me and asked, "What kind of car is that?" (Hogzhaust stage 2, debadged and L7 grille badge). Then stated to me, "This ought to be a fun one." HOWEVER ~HC: 0.0432 (1.2000) ~CO: 0.6448 (15.000) ~NOx: 0.0641 (1.5000) It was a kick to watch several people check the car looking for a reason not to pass it. They ran the test twice, my guess wondering why a car they knew was modified yet could not find a visual or sniff test reason to flunk me. Looks like a winner for Mike @ 5250 Performance! No more need to be switching out the DP and retune to stock ECU program for me. Link to comment Share on other sites More sharing options...
SSpeed Posted January 21, 2012 Author Share Posted January 21, 2012 Those are nice numbers for an aftermarket cat. I originally passed two years ago on my Cobb hiflow cat as well. It just barely failed this time, running rich for two years probably didn't help. It may not be that they ran you twice, if you don't do well enough to fast pass you get a second chance test, even stock cars often have to do second chance. Their computer crashed halfway through my tests the last two times, I was on their dyno a long time. Link to comment Share on other sites More sharing options...
PutnamCO Posted January 22, 2012 Share Posted January 22, 2012 I thought I would give it a try with my catless set-up, and here are the results: HC: 2.90 (1.2) CO: 41.96 (15) NOx: 3.29 (1.5) They also noticed that I didn't have a cat in the DP. They thought I had one in the uppipe because it's an STI up. The visual inspections were very thorough both times. I threw on my stock DP and got the following: HC: .35 (1.2) CO: 4.24 (15) NOx: .034 (1.5) That's impressive that Mike's race cat did better in 2/3 than my stock DP. Link to comment Share on other sites More sharing options...
Legend Posted January 22, 2012 Share Posted January 22, 2012 That's impressive that Mike's race cat did better in 2/3 than my stock DP. +1 That is really cool. Wonder if Mike's DP reduces power at all vs a conventional HFC. That is great you tested catless.. never heard of someone doing that. I'm sure you had low expectations but no harm in trying! My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
tLewis7 Posted January 22, 2012 Share Posted January 22, 2012 ^When you look down the CNT cat taken off and the new cat, the restriction appeared more with the CNT. No difference by the butt dyno. Link to comment Share on other sites More sharing options...
PutnamCO Posted January 22, 2012 Share Posted January 22, 2012 +1 That is great you tested catless.. never heard of someone doing that. I'm sure you had low expectations but no harm in trying! Yeah, I had to drive by the station to get to my buddy's shop where I was swapping DP's, so I figured I would give it a try. I wouldn't have guessed that the catless emissions would be around 10x the catted. Link to comment Share on other sites More sharing options...
mwiener2 Posted January 23, 2012 Share Posted January 23, 2012 Whoa!! Better numbers than my test on E85 and my cat is even closer to the engine than anyone elses. These cats are a HFC. When compared to a traditional race cat ($50-150) the matrix looks identical. You can just barely see through both cats. It shouldn't be anymore restrictive than any other race cat. These new race cats (Gesi) were developed for this purpose... making race cars clean while not talking the race away. The new Gesi cats ($350-500) are stable 200 degrees higher than other race cats, they flow the same if not better than regular race cats, they are available in two sizes for 3" pipe. Under 500hp and over 500hp. The difference being one has more catalyst area than the other. And the deal maker, these cats are EPA Certified OBDII. No other high flow race cat has that certification. This means the major hassle of what do I do come emissions time with my XXXX setup is gone. Rotated's for everyone!!! My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
SSpeed Posted January 23, 2012 Author Share Posted January 23, 2012 Very cool, does EPA Certified mean that it's ok to change it out? I was under the impression the law states something about not being able to swap out the stock cat? How accurate is this? E.P.A. guidelines state that replacement converters may be installed only in the following situations: 1. The vehicle is missing a converter 2. A state or local inspection program has determined that the existing converter needs replacement 3. Vehicles manufactured prior to 1996 must have more than 50,000 miles, and a legitimate need for replacement must be established and documented 4. In cases of OBD Il-equipped vehicles (1996 and later), the O.E. manufacturer's 8-year/80,000-mile warranty must have expired and a legitimate need for replacement must be established and documented. Please note that Federal law prohibits removal or replacement of a properly functioning O.E. converter. When replacement of the converter is appropriate (as outlined above), the E.P.A. further requires that: 1. It be installed in the same location as the original 2. It be the same type as the original (i.e., two-way, three-way, three-way plus air/three-way plus oxidation) 3. It be the proper model for the vehicle application as determined and specified by the manufacturer 4. It be properly connected to any existing air injection components on the vehicle 5. It be installed with any other required converter for a particular application 6. It be accompanied by a warranty information card to be completed by the installer. Link to comment Share on other sites More sharing options...
Legend Posted January 23, 2012 Share Posted January 23, 2012 So cool, Mike! I'm slowly piecing the parts list for my next build ('10-'11 WRX or STi) and I will put this DP on my "for-sure" list (along with Process West TMIC, ID1000's, GS EBCS, E85, Harvey tune, KSTech big MAF, Perrin 3" inlet, TGV deletes) My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
mwiener2 Posted January 24, 2012 Share Posted January 24, 2012 When the EPA, and not Colorado, does an inspection on someones car, let me know. On the first set of requirements, number 1 is ours. Hey, where'd my cat go? On the second set, legal mumbo jumbo will cover all of that. What this means is you can go buy a dirt cheap bellmouth downpipe for around $250 new. $100 used. Spend what you would on a normal catted downpipe, $550, and have a emissions/race ready downpipe. My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
LGT For ME Posted January 24, 2012 Share Posted January 24, 2012 Unfortunately my friend Bob w/ the Crawford Performance car wasnt as lucky, his rotated set up car failed with this pipe the first time . He's going to retest it after driving it around a bit longer, if you can get that car to pass then any car should This means the major hassle of what do I do come emissions time with my XXXX setup is gone. Rotated's for everyone!!! Link to comment Share on other sites More sharing options...
mwiener2 Posted January 24, 2012 Share Posted January 24, 2012 We used the "test" section where Bob had a cat before. It was simpler and cheaper to install the new cat where the old one was, but I think it may be too far back in the exhaust, doesn't get/stay hot enough. That Crawford Car has a lot of unknowns too... We'll get him through though, one way or another. My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
Legend Posted January 24, 2012 Share Posted January 24, 2012 That Crawford Car has a lot of unknowns too... Is that car the car that was running ecutek? My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
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