Results 1 to 12 of 12

Thread: Manifold/turbo colour...

  1. #1
    Registered User
    Join Date
    May 2002
    Posts
    435

    Manifold/turbo colour...

    I blew a turbo up recently (bearing failure). I was a little surprised to see this colour on the turbo and manifold. Interestingly, the colour doesn't extend to the dump pipe at all. I don't have an EGT sensor.

    Any ideas on what causes this colour? Runs on E85.




  2. #2
    Registered User
    Join Date
    Nov 2013
    Location
    Brisbane
    Posts
    126
    What brand E85? Possibly residue from anti corrosives in it?

  3. #3
    Ellis Juan mizone's Avatar
    Join Date
    Jul 2003
    Location
    Western Australia
    Posts
    3,938
    Fuel additive? Elf fuels used to do this.

  4. #4
    Registered User dnegative's Avatar
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    3,955
    Rust from moisture or residue from additives in the fuel
    Quote Originally Posted by cracka View Post
    Fuck I'm retarded

  5. #5
    Registered User THE CHIEF's Avatar
    Join Date
    Nov 2016
    Location
    Melbourne
    Posts
    279
    United E85 does that to mine. After a track day my whole exhaust system from turbo to exhaust tip is rusty orange like that. Stays like that until I run some 98 then goes black again pretty quick.

  6. #6
    Registered User
    Join Date
    May 2002
    Posts
    435
    Yeah, it's United E85. I use a castor oil mix too (not much, around 40ml per 20 litres).

  7. #7
    Registered User
    Join Date
    Aug 2013
    Location
    Here and There
    Posts
    690
    Can you explain what the go is with the castor oil mix?
    Quote Originally Posted by BigMuz View Post
    Fuck 1uz you're such a sad cunt, trolling at a rookie level is the lowest form of self expression.
    Quote Originally Posted by Fatboy View Post
    Interesting that no-one wants to come to the rescue of 1uz though. Maybe he really is an annoying flog ?

  8. #8
    Registered User
    Join Date
    May 2002
    Posts
    435
    Just a bit of upper-cylinder lube. I use a Maxim castor-based pre-mix because a lot of two-stroke oils don't mix well with E85

  9. #9
    Registered User
    Join Date
    Nov 2013
    Location
    Brisbane
    Posts
    126
    Looks like it was burning nice. What do the plugs look like?

    Do you monitor AF/R's?

  10. #10
    Registered User
    Join Date
    May 2002
    Posts
    435
    Plugs are a nice clean grey colour. I log lambda and its very safe with about 0.83 at WOT and max load

  11. #11
    Compulsive modifier awdmoke's Avatar
    Join Date
    Feb 2011
    Location
    WA
    Posts
    1,261
    That looks nice and clean, no petrol glug or carbon.
    Lots of minis & mokes including a G13b powered Sports Sedan, a couple of Swift Gtis, a Goggomobil, Porsche 928S, Polo Gti, BMW 540i, a WRX and a few others.

  12. #12
    Non Compos Mentos Gammaboy's Avatar
    Join Date
    Jun 2008
    Location
    Brisbane
    Posts
    15,469
    Quote Originally Posted by Crazy View Post
    Just a bit of upper-cylinder lube. I use a Maxim castor-based pre-mix because a lot of two-stroke oils don't mix well with E85
    Castrol M (if you can find it) should mix with E85.
    "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •