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11-14-2012, 07:38 AM | #26 | |
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11-14-2012, 08:33 AM | #27 |
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I thought the Ringland issues were with the STi's, not the WRX? That's been my understanding for the past 3 years.
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11-14-2012, 08:38 AM | #28 |
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11-14-2012, 08:44 AM | #29 |
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11-14-2012, 09:29 AM | #30 | |
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And Maddmax, isn't the Torque App just a Bluetooth OBD2 dongle that relays info to a smart phone? I have heard that you shouldn't trust the OBD2 port fr AFR since the stock O2 sensor doesn't have the same range or resolution of a true UEGO. I would only trust what a wideband is telling me for my AFR. |
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11-14-2012, 09:37 AM | #31 | |
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That car can also run on 87oct and be "happy", it just lowers its power output. Subaru needs to step up their game. |
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11-14-2012, 10:45 AM | #32 | |||
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The problem won't be resolved until Subaru ditches the EJ-series engine; it's antiquated and eventually won't be able to keep up with modern emissions requirements. Technically, it can't even keep up now unless it runs dangerously lean stock AFRs. |
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11-14-2012, 11:20 AM | #33 |
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The issue still lingers, though it's not really widespread on the wrx. From my experience here and with different techs I've talked to, I've see more issues come as a result of aftermarket tunes than the stock 'crappy tune.' There are plenty of reasons for that though (abuse, bad tuner, etc).
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11-14-2012, 07:21 PM | #34 |
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I do get out quite a bit. Thanks for asking. I could have sworn this thread was about WRXs and not STIs, concerns about ringland issues, and questions about this lean issue which so many blame on the ringland failures. If that's the case, here's a dyno plot of a stock 2011 WRX from Cobb. Note the AFR compared your STI dyno. |
11-15-2012, 10:31 AM | #35 | |
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11-16-2012, 05:39 PM | #36 | |
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I assume you mean stage 1 Cobb map ?? No way a stock wrx makes that much power do the ground. 265 hp do not go down to 251 at the wheels. If so, i'm more than surprised. if it's a stage 1 mapping, then the AFR has been "ajusted" to make it safe. That's the main reason why i put a cobb stg 1 on mine...reliability... that and a CBE. |
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11-16-2012, 06:48 PM | #37 |
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Depends on the dyno that run was made on. Other dynos will report lower numbers.
You know the drill. "Your results will vary. Subject to terms and conditions. Void where prohibited." |
11-16-2012, 09:46 PM | #38 | |
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11-16-2012, 11:32 PM | #39 | |
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11-17-2012, 12:00 AM | #40 | ||
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The new DIT in the Forester can run regular. Maybe the next WRX/STI will be able to. |
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11-28-2012, 07:14 PM | #41 | |
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11-28-2012, 10:00 PM | #42 |
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11-28-2012, 11:05 PM | #43 |
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11-29-2012, 09:31 AM | #44 |
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I have it on good authority from two different sources, one is a major player in Subaru tuning game, the other is my uncle who is a machinist on contract to repair Subaru engines for a dealer in Boston, that the ringlands in the 2011 and up EJ25's now have a ceramic coating on the ringlands to help reduce failure. It's very non scientific though, take it as a grain of salt, the engineers from Subaru haven't confirmed this.
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11-29-2012, 09:36 PM | #45 | |
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11-29-2012, 10:57 PM | #46 | |
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11-30-2012, 09:17 AM | #47 | |
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can someone conffirm this ? |
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11-30-2012, 11:58 AM | #48 |
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11-30-2012, 02:57 PM | #49 |
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just my .02
2010 WRX, stock motor/tune 78,000+ mi and counting all oil changes performed by the dealer every 3000-3500 mi. 30k and 60k services performed by IAG Performance with K&N air filter. never a single problem. i do NOT baby my car either. i think if there was a problem with the tune, it probably would have happened to a lot more people. i thnk most of the failures are more probably a result of a defect in the engine, not the tune. soon i will have a Speaco TMIC + DP + "stage 2" protune with COBB AP, though. so itll be a bit moot after that. |
11-30-2012, 03:20 PM | #50 | |
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-don't warm up their car properly before driving "spiritedly" -use less than optimal gas -don't follow the maintenance schedule etc. All of these things together could explain the failures. But there's no denying that these tunes are absurdly lean by aftermarket standards. |
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