Broken ringland

Discussion in 'General Subaru Discussion' started by samoya22, Apr 17, 2012.

  1. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    I was at RS Motors the other day doing some photography for Ron's new website when I found my old piston with a broken ringland. This is what happens when you let someone who ISN'T Ron tune your car. Pretty sure it happened when they re-plumbed my wastegate and the hose slipped off in the middle of a run. The dyno read 40+ psi for a bit before they let off the throttle.

    [​IMG]
     
  2. readymix
    Offline

    readymix ...Lest ye be trod upon... Staff Member

    Likes Received:
    2,883
    Trophy Points:
    473
    Bikerboy said I was the one that broke it because it fell apart in my hands in the front office. I knew it wasn't me.
     
    samoya22 and tangledupinblu like this.
  3. 03subyR
    Offline

    03subyR Well-Known Member

    Likes Received:
    86
    Trophy Points:
    233
    Looks like everybody having issues with ringlands now days.
     
  4. AWDimprezaL
    Offline

    AWDimprezaL has more posts than you

    Likes Received:
    1,818
    Trophy Points:
    573
    Who tuned it beforehand?
     
  5. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    You mean, before the engine failed or in the past?
     
  6. AWDimprezaL
    Offline

    AWDimprezaL has more posts than you

    Likes Received:
    1,818
    Trophy Points:
    573
    Who tuned it resulting in the failure of said ringland.
     
  7. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    That would be a Mr. Terry Stamper of WRC tuning renown, using the dyno at DB Performance. He was attempting to tune the stock engine with a Cosworth/Pectel ECU.
     
  8. Nuke
    Offline

    Nuke Well-Known Member

    Likes Received:
    814
    Trophy Points:
    348
    Psh that's a stock piston. Sh*t happens daily. Hehe
     
  9. AWDimprezaL
    Offline

    AWDimprezaL has more posts than you

    Likes Received:
    1,818
    Trophy Points:
    573
    Damnit.
     
  10. blackozone
    Offline

    blackozone Well-Known Member

    Likes Received:
    1,010
    Trophy Points:
    348
    That's a pretty picture of an ugly thing.
     
  11. Shancaldazar
    Offline

    Shancaldazar Well-Known Member

    Likes Received:
    220
    Trophy Points:
    228
    Haha!

    I can imagine how you felt as the ringland failed on the dyno...
     
  12. Zero
    Offline

    Zero Well-Known Member

    Likes Received:
    20
    Trophy Points:
    103
    Let's start a broken ringland gallery. Here's mine after 12k.....
    Broken Piston 1.2.JPG
     

    Attached Files:

  13. Deride
    Offline

    Deride Well-Known Member

    Likes Received:
    120
    Trophy Points:
    248
    Ouch! you get that diff in yet? =p
     
  14. Zero
    Offline

    Zero Well-Known Member

    Likes Received:
    20
    Trophy Points:
    103
    What's up man? I am putting the head's on the engine right now. Diff will come later.
     
  15. Deride
    Offline

    Deride Well-Known Member

    Likes Received:
    120
    Trophy Points:
    248
    Glad you are making progress! sorry about the ringland fails in this thread. =( I'm prepared for my stock 2.0L to blow up any day now.
     
  16. tangledupinblu
    Offline

    tangledupinblu Event Coordinator Staff Member

    Likes Received:
    8,832
    Trophy Points:
    573
    In comparison to the 2.5, the 2.0 is indestructable! You'll be fine...just keep those exhaust valves properly lashed.;)
     
  17. Deride
    Offline

    Deride Well-Known Member

    Likes Received:
    120
    Trophy Points:
    248
    No no no! it's HOLIDAY gas that causes burnt valves! ;P
     
  18. tangledupinblu
    Offline

    tangledupinblu Event Coordinator Staff Member

    Likes Received:
    8,832
    Trophy Points:
    573
    Yeah, that can do it too...but mainly improper lashing.:p
     
  19. Deride
    Offline

    Deride Well-Known Member

    Likes Received:
    120
    Trophy Points:
    248
    No, it can't be improper lashing, it has to be Holiday gas! the gas comes from a completely different source that has additives to burn exhaust valves. It's science.
     
  20. tangledupinblu
    Offline

    tangledupinblu Event Coordinator Staff Member

    Likes Received:
    8,832
    Trophy Points:
    573
    Are you sure? I was always told that it was because you'd let the blinker fluid run too low!? Gotta check it when you're filling up your gas at Holiday and make sure to top it off.
     
  21. Deride
    Offline

    Deride Well-Known Member

    Likes Received:
    120
    Trophy Points:
    248
    I never found the fill nozzle for the blinker fluid, is it near the 710 cap? I was also told that my muffler bearing was shot recently, how do I go about replacing that?
     
  22. tangledupinblu
    Offline

    tangledupinblu Event Coordinator Staff Member

    Likes Received:
    8,832
    Trophy Points:
    573
    The fill nozzle is just to the left of the murferator. You have to replace the whole muffler when the bearing goes out....they're a one piece unit.
     
  23. Deride
    Offline

    Deride Well-Known Member

    Likes Received:
    120
    Trophy Points:
    248
    Sounds expensive, might just have to trade my car in.
     
  24. tangledupinblu
    Offline

    tangledupinblu Event Coordinator Staff Member

    Likes Received:
    8,832
    Trophy Points:
    573
    That would probably be best. Dump it and get a VTEC. They have the best murferators that money can buy in them!
     
    Slopestyle1 likes this.
  25. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    I'm astonished by the number of responses to such a simple thread, but I like the idea of a broken ringland gallery for sure. Broken ringlands and ovaling of cylinders seems to be the result of running 2.5s with high boost.
     
    Musashi likes this.
  26. Starkall
    Offline

    Starkall Active Member

    Likes Received:
    118
    Trophy Points:
    53
    What's considered high boost on a 2.5? Above 25lbs?
     
  27. ofspunk7
    Offline

    ofspunk7 Well-Known Member

    Likes Received:
    1,147
    Trophy Points:
    298

    Above stock... LOL
     
    samoya22 and tangledupinblu like this.
  28. Zero
    Offline

    Zero Well-Known Member

    Likes Received:
    20
    Trophy Points:
    103
    Fixed:
    Broken piston 1.4.jpg
     
  29. ofspunk7
    Offline

    ofspunk7 Well-Known Member

    Likes Received:
    1,147
    Trophy Points:
    298
    That's why they pay you the big bucks! You car techs, always thinking outside the box.
     
  30. W02RX
    Offline

    W02RX Well-Known Member

    Likes Received:
    18
    Trophy Points:
    103
    Is this a "new" problem or always been with the 2.5? Does it ever score the walls or do new pistons solve the problem?
     
  31. Zero
    Offline

    Zero Well-Known Member

    Likes Received:
    20
    Trophy Points:
    103
    I caught this before any cylinder damage was done. However, drop in pistons(manley) allowed too much piston/wall clearance and would have resulted in piston slap. I had to bore it to the next available size, 99.75mm.
     
  32. FuJi K
    Offline

    FuJi K Well-Known Member

    Likes Received:
    121
    Trophy Points:
    248
    I heard a story of your engine ovaling its walls after BIR in '11. I'm sure had the car been prepped and tuned well it would still be running with the same engine.

    And just for the record, the Speeding Bullet came from RS Motors with a dead piston to what it is now a 10sec 8500rpm full interior street car.


    what pistons do you have now? I doubt it's stock......
     
  33. Shancaldazar
    Offline

    Shancaldazar Well-Known Member

    Likes Received:
    220
    Trophy Points:
    228
  34. Musashi
    Offline

    Musashi Well-Known Member

    Likes Received:
    583
    Trophy Points:
    348
    Is this guy eatable? :eek:
     
  35. Musashi
    Offline

    Musashi Well-Known Member

    Likes Received:
    583
    Trophy Points:
    348
    How about we discuss this over lunch like men? :coffee: Or you boys can settle this the old fasion way on the only place that matters, on the track? 600 donkeys vs 600 donkeys in shorts wearing flip flops. :facepalm:
     
  36. W02RX
    Offline

    W02RX Well-Known Member

    Likes Received:
    18
    Trophy Points:
    103
    Not that I know anything, but that looks like "cast" metal to me, and it seems like I've heard in the past that STi pistons are "forged." This is not a problem for STi's then?
     
  37. Nuke
    Offline

    Nuke Well-Known Member

    Likes Received:
    814
    Trophy Points:
    348
    V7 jdm got forged
    Usdm all cast...lol dont wish your luck on it
     
  38. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    Typical jack-assery from the Fuji. Terry was a good guy and I'm not going to say much else on the matter. Obviously he knows his stuff, having worked for Cosworth and doing engine management in F1. The stock STi block is too weak. That's life. I've moved on. Matt built us a 22T hybrid with a custom fuel system and an HTA 35R: twin scroll and swain tech coated. The new pistons are coated CPs. I was just sharing a piece of history (and a commonality within the STi community) via a photograph.
     
  39. FuJi K
    Offline

    FuJi K Well-Known Member

    Likes Received:
    121
    Trophy Points:
    248
    you really think that's typical me? I wouldn't be saying what I said if I didn't heard what was said. don't think i don't know what you told Chong.

    You think Ron can save the stock piston? It can't even save itself even on the stock tune. That's what I'm saying. That's good that Matt helped build that new engine for you. Better not let Chong drive it.
     
  40. tangledupinblu
    Offline

    tangledupinblu Event Coordinator Staff Member

    Likes Received:
    8,832
    Trophy Points:
    573
    ^You wan race....my stock pistons?:uhhuh:
     
  41. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    Don't think I don't know what Chong knows what was said you said what was saying what said is what I said you were saying!

    You're half correct about the stock pistons. They're ****e. But, with a proper tune, you can keep them...you just won't go as fast as you would with aftermarket options. C'est la vie.
     
  42. samoya22
    Offline

    samoya22 Well-Known Member

    Likes Received:
    31
    Trophy Points:
    213
    Don't think I don't know what Chong knows what was said you said what was saying what said is what I said you were saying!

    You're half correct about the stock pistons. They're ****e. But, with a proper tune, you can keep them...you just won't go as fast as you would with aftermarket options. C'est la vie.
     
  43. Musashi
    Offline

    Musashi Well-Known Member

    Likes Received:
    583
    Trophy Points:
    348
    Try saying that five times. Lmao

    I know what you said and he said and what I said, but does it really matter? People say dumb things out of frustration in the moment. Water under the bridge.
     
  44. Nuke
    Offline

    Nuke Well-Known Member

    Likes Received:
    814
    Trophy Points:
    348
    Kayaking
     
  45. AWDimprezaL
    Offline

    AWDimprezaL has more posts than you

    Likes Received:
    1,818
    Trophy Points:
    573
    Jack assery from fuji? Seriously? He is easily the most non jackass out of all the jackasses associated with this jack assery site.
     
    ofspunk7 likes this.