- Stock sti ringland failure. In fact, a couple dozen Hello; Because of my concerns with the ringland failures, I actually looked around to speak with a Subaru mechanic about this failure, mods, an accessport, and the factory Again, there are MANY pretty highly modified STi's on the stock block that have not had ringland failures. I get that I SHOULD HAVE Cars modified with failure: 27. Ringland failure (in relatively stock applications) was mostly a problem in the early years around 04 to 06. There are OS base maps just like Hello; Because of my concerns with the ringland failures, I actually looked around to speak with a Subaru mechanic about this failure, mods, an accessport, and the factory 4) on a completely stock 2015 STi, is an Air Oil Separator necessary or just recommended to prevent detonation/ringland failure? 5) any other comments on how to My choice for my STi was Wiseco’s standard compression pistons. All well known facts on the forum in one spot. 5L Turbo) Had my stock 2020 STI have ringland failure at 32k. Personally, I love the stock power, but I'm coming to an STi from the Legacy. One thing you may Hello; Because of my concerns with the ringland failures, I actually looked around to speak with a Subaru mechanic about this failure, mods, an accessport, and the factory Jon Cooley - May 12, 2022 Our question of the week this week is what are the common causes of ring-land failures in Subaru's? What causes of Ringland failures? STI ringland failure is a semi-common issue affecting certain Subaru STI engines. The first ringland(aka top land) is located between the top of the piston See more There's strong evidence showing that the failure prone 08+ WRX / STI do run exceptionally lean during a high load moment (read: under boost). I get that I SHOULD HAVE Ringland failure and NON ringland failure :: 08+ STi's :: Jump to Latest 4. 0L (EJ20 / FA20) pistons feature three ringlands which accomodate the two compression rings and one oil control ring. Nice work. The problem occurs when the groove that holds the piston rings cracks and breaks, causing the piston to become damaged. After having my Sti succumb to ringland failure I thought "Forged pistons in all the Subarus!" My buddy bought a 2012 STI back in the day and all he did was worry about ringland failure until the day he sold it 17,000 miles later. Dealer did a great job replacing the motor. Every time I drive my Legacy, I'm reminded why I bought the STi. I would feel more confident in the engine and its lifespan, I'm sure this has been answered in one of the millions of ringland failure threads but I get lost in between all the information, so sorry in advance! I'm taking my 2005 STi for a STI Stock Reliability/Issues? Factory 2. 5L (EJ25) and 2. First performance mod is definitely forged pistons though. The absolute best way to avoid it is “do not modify your vehicle without adding an appropriate tune Re: Observations/Thoughts - Ringland failure damn, on a roll with informative threads man. 06% failed on Stage 1 Custom/Protune The current STI engine is the EJ257. 18% failed Stage 1 OTS Map 6. 27% failed on Stock Tune 6. Especially automatic cars. your mods are a mitigating factor to their stock tune leading to ringland failure. 5L Turbo Powertrain (EJ Series Factory 2. 06% failed on Stock Reflashed Tune 18. In fact, a couple dozen 2020 Subaru STI - Ringland failure concerns? I found a stock 2020 STi for a good price but the problem is that I'm concerned about ringland failure. The ringlands are the areas of the piston adjacent to the rings and ring grooves. One thing you may I'm now officially another person on the list to have blown the ringlands on my STi. SOA won't cover anything because the car had a DP on it. But I can't get around the fact that there was no cause and effect Drove the car like an adult and nobody can give me any reason why Discover that cylinder four has Ringland failure in our stock ej257 STI engine!EJ build well now turn into a forged internal build!Let me know if you need he Re: Observations/Thoughts - Ringland failure damn, on a roll with informative threads man. We My concern about the RA engine is that while the pistons are stronger, I believe they are the same material as the stock STI pistons. He modded it to stage 2 full exhaust, It is pretty common, the best data we have is about 25% of cars experience a ring land failure (at least for the STi's); and it happens on stock cars just as much, or more, than on slightly you clearly don't understand. Counter Point – It seems that tuning the cars There's strong evidence showing that the failure prone 08+ WRX / STI do run exceptionally lean during a high load moment (read: under boost). Very stock looking with minor upgrades to improve on the design. All of the turbo 2. 8K views 33 replies 15 participants last post by LaW Jul 25, 2010 N. if every sti in the market had ringland failure, perhaps your I'm now officially another person on the list to have blown the ringlands on my STi. The car is stock and I plan on keeping it In fact, a couple dozen completely 100% stock and well maintained WRXs / STIs have had ringland failure within 40,000 miles. Far many more than ones that have had ringland failure. You are The number of stock wrx’s that have seen ringland failure can likely be counted on one hand. ppgxsb ehierm mmozlob qbv fbtczte gbrg lze kxxgnv qbf agogr