2018 civic si turbo going bad

  1. burningoilagain

    burningoilagain Senior Member

    Joined:
    Nov 9, 2017
    Posts:
    298
    Thanked:
    112
    Location:
    New York City
    First Name:
    Alberto
    Car(s):
    2018 Civic Si Sedan
    What’s sup guys, I have a 2018 civic si and was installing my downpipe when I noticed the oem turbo having shaft play. So I guess the turbo is gonna blow soon ? I have 21k, prl cobra with tsp race maf tune.
     
  2. VidaDeX

    VidaDeX Dm Slder

    Joined:
    Oct 9, 2017
    Posts:
    59
    Thanked:
    38
    Location:
    Maryland
    First Name:
    Xavier
    Car(s):
    2017 Honda Civic Si
    Have you been two stepping?
     
  3. OP
    burningoilagain

    burningoilagain Senior Member

    Joined:
    Nov 9, 2017
    Posts:
    298
    Thanked:
    112
    Location:
    New York City
    First Name:
    Alberto
    Car(s):
    2018 Civic Si Sedan
    I can’t sit here and say I haven’t done it before I have. But not something I do ALL the time. Another guy in the mechanic shop say that the shaft play is normal to have some sort of play. Especially with an oem one
     
  4. VidaDeX

    VidaDeX Dm Slder

    Joined:
    Oct 9, 2017
    Posts:
    59
    Thanked:
    38
    Location:
    Maryland
    First Name:
    Xavier
    Car(s):
    2017 Honda Civic Si
    I’m on my second turbo. Any turbine shaft play is the result of a blown turbo. I went and bought another stock turbo. My advice upgrade your turbo to a new one and don’t two step. Rolling anti lag is okay here and there because your getting air into the motor but at a standstill don’t do it.
     
  5. silverblip

    silverblip Senior Member

    Joined:
    May 30, 2019
    Posts:
    259
    Thanked:
    214
    Occupation:
    Machinist
    Location:
    Newport News VA
    First Name:
    Dan
    Car(s):
    2019 LS Civic Si Sedan
    Dumb question, what is 2 stepping?
     
  6. VidaDeX

    VidaDeX Dm Slder

    Joined:
    Oct 9, 2017
    Posts:
    59
    Thanked:
    38
    Location:
    Maryland
    First Name:
    Xavier
    Car(s):
    2017 Honda Civic Si
    YouTube search “Cars two stepping”
     
  7. NoKz

    NoKz Speed Limit Tester

    Joined:
    Jul 23, 2018
    Posts:
    732
    Thanked:
    937
    Location:
    SoCal
    Car(s):
          2018 Si Coupe   2019 Si Sedan   2000 LSV Integra
     
    silverblip thanked this.
  8. THATSi

    THATSi Senior Member

    Joined:
    Jul 22, 2018
    Posts:
    132
    Thanked:
    43
    Location:
    Naples FL
    First Name:
    Nick
    Car(s):
    17 Civic Si
    I feel like this is a good thread for me to plug my factory turbo for sale. Like 20kish miles on it, no shaft play, in good shape
     
  9. SCOPESYS

    SCOPESYS Senior Member

    Joined:
    Aug 27, 2018
    Posts:
    2,247
    Thanked:
    1,193
    Location:
    MD
    First Name:
    Geoff
    Car(s):
    2018 Honda Civic SI Coupe. . . . . . . .1987 Nissan Maxima Wagon. . . . . . . . . . .1987 Nissan Pulsar NX . . . . . . . . . . . . . . . . . .1987 Nissan Maxima Wagon (2nd Donor Wagon for parts)
    Thanks -- watched the video -- am now a little wiser -- but now have questions.


    Video suggest that most OEM rev limiters are done by Fuel Leaning, and that it is Ignition Retard rev limiting that can cause issues with over-stressing the turbo.

    So:-

    Does Honda use Fuel Leaning or Ignition Retard for rev limiting. ?
     
  10. OP
    burningoilagain

    burningoilagain Senior Member

    Joined:
    Nov 9, 2017
    Posts:
    298
    Thanked:
    112
    Location:
    New York City
    First Name:
    Alberto
    Car(s):
    2018 Civic Si Sedan
    Anti lag thing I haven’t done and don’t plan on it. I just don’t wanna buy a turbo now if it’s not needed. I should have recorded the play to see if it’s normal or not. But I guess I will find out one of these days then lol.
     
  11. EastBayCivic

    EastBayCivic Senior Member

    Joined:
    Aug 16, 2018
    Posts:
    170
    Thanked:
    53
    Location:
    West Coast
    First Name:
    DerekZoolander
    Car(s):
    2017 Civic Touring
    Any odd sounds or behavior? Or can you only tell there is play when inspecting it ?
     
  12. OP
    burningoilagain

    burningoilagain Senior Member

    Joined:
    Nov 9, 2017
    Posts:
    298
    Thanked:
    112
    Location:
    New York City
    First Name:
    Alberto
    Car(s):
    2018 Civic Si Sedan
    No odd sounds, weird behavior! When my mechanic pulled the turbo out he saw there was some play in it. But didn’t know if that was normal or not based on it being a new Honda turbo. He said usually when it has play it’s going bad. And some of my other friends with turbo cars say some sort of play is normal especially with a baby turbo
     
    EastBayCivic thanked this.
  13. EastBayCivic

    EastBayCivic Senior Member

    Joined:
    Aug 16, 2018
    Posts:
    170
    Thanked:
    53
    Location:
    West Coast
    First Name:
    DerekZoolander
    Car(s):
    2017 Civic Touring
    Thanks for the info! I'm trying to educate myself on how to pick up if things are going bad.
     
  14. Gotch

    Gotch Senior Member

    Joined:
    Jun 29, 2018
    Posts:
    425
    Thanked:
    316
    Occupation:
    Maintenance Manager
    Location:
    Canada
    First Name:
    Rob
    Car(s):
    2018 Si Sedan Rallye Red
    I love these posts...its got play in it... what is the actual lateral and radial runout? You know, using sophisticated instruments like a dial indicator. Without which you have no idea if it’s bad or not.
     
  15. parshisa

    parshisa Senior Member

    Joined:
    Jan 11, 2017
    Posts:
    604
    Thanked:
    247
    Location:
    Texas
    Car(s):
    Civic X Hatchback LX
    I’ve just watched a video on kia turbo motor rebuild and brand new turbo had play on both sides. I guess it is to compensate for thermal expansion
     
    burningoilagain thanked this.
Loading...

Share This Page

Loading...