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Thread: Manifold/turbo colour...

  1. #1
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    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
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    What brand E85? Possibly residue from anti corrosives in it?

  3. #3
    Ellis Juan mizone's Avatar
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    Fuel additive? Elf fuels used to do this.

  4. #4
    Registered User dnegative's Avatar
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    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
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    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
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    Yeah, it's United E85. I use a castor oil mix too (not much, around 40ml per 20 litres).

  7. #7
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    Can you explain what the go is with the castor oil mix?
    Quote Originally Posted by turbosurfer View Post
    Looks like zero
    Anyway fuck the RS its a ford so it will just fall apart.
    The laugh is on you clowns.

  8. #8
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    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
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    Looks like it was burning nice. What do the plugs look like?

    Do you monitor AF/R's?

  10. #10
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    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
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    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, 928S, Polo Gti, BMW 540i, a WRX and a Navara with the deadly ZD30

  12. #12
    Non Compos Mentos Gammaboy's Avatar
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    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."

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