0 compression

Discussion in 'Mazdaspeed 3 Troubleshooting' started by B_boosting, Mar 31, 2020.

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  1. B_boosting

    B_boosting Greenie Member

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    so I did a pull the other day and my car started to smoke and sounding like a subaru. I got home did a compression test and I got the following numbers 180/0/180/170. I have not done a leak down test since I don’t have a compressor at home, I did take the intake manifold off and the valves are pretty cake up with carbon build up.
    I also put a camera down the #2 cyclinder and it looks fine, of course I can see the rings so irk if does are fried. So I was wondering if anybody seen this before or think it might be the build up on the valves. The car is a 2010 with 85k no egr delete or catch can on it. Mods are: hpfp, solid mounts 2.5 intake and 3 inch turbo back. The car is also tune an it’s making around 300hp/350tq
     
    B_boosting, via an iPhone, Mar 31, 2020
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  2. Enki

    Enki Motorhead Platinum Member

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    Who tuned it?
     
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  3. B_boosting

    B_boosting Greenie Member

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    A local guy. The car Has been tune for over 15k miles tho.
     
    B_boosting, via an iPhone, Mar 31, 2020
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  4. Enki

    Enki Motorhead Platinum Member

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    Have a recent WOT log from the car?
     
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  5. B_boosting

    B_boosting Greenie Member

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    Yup I’ll send it right now
     
    B_boosting, via an iPhone, Mar 31, 2020
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  6. B_boosting

    B_boosting Greenie Member

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    here you go.
     

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  7. Enki

    Enki Motorhead Platinum Member

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    I hope you're running some kind of alcohol somewhere, either e30+ in tank or methanol from WMI. If not, this log is a bigass yikes.
     
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  8. B_boosting

    B_boosting Greenie Member

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    yes is on e30 sorry i forgot to mention that
     
  9. B_boosting

    B_boosting Greenie Member

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    also can you tell me why you think that about the log. just curious
     
  10. Enki

    Enki Motorhead Platinum Member

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    Still...I'll let others chime in but this is a bit of an issue:

    upload_2020-3-31_16-14-31.png
     
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  11. B_boosting

    B_boosting Greenie Member

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    so too much timing or the timing is not smooth?.
     
  12. Enki

    Enki Motorhead Platinum Member

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    Not a true/good comparison, but here's my car running E35 with lots of room for timing left:
    upload_2020-3-31_16-18-7.png


    Whoever tuned your car is looking for knock feedback and didn't get any (which is as to be expected). You've got busted ringlands for sure, and to have zero comp, I'd wager there's a nice fat chunk in your oil pan currently.

    Edit: Assuming there isn't just an outright hole in the piston.
     
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  13. B_boosting

    B_boosting Greenie Member

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    I see. well ill be dropping the pan this weekend ill port an updated. thanks for the quick responds brother
     
  14. B_boosting

    B_boosting Greenie Member

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    I didnt see anything on the dome ( baroscope) so i just hope my block is good.
     
  15. anthony

    anthony Greenie Member

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    What kind of asswipe tuning is this
     
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  16. andale927

    andale927 Greenie Member

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    WTF lol, looks like a 12 year old filled in the timing table.
     
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  17. mangosmoothie

    mangosmoothie Silver Member

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    so how was this log done? I'm seeing like 3 sec 60-100 which is not correct
     
  18. B_boosting

    B_boosting Greenie Member

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    do you know how to tune, the car did last a year of straight racing an abuse thats why i bought it. please i really appreciate input like enkis, not just random noob crap
     
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  19. B_boosting

    B_boosting Greenie Member

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    i might have press the log bottom late, it was just my most recent one. i got many more f it help
     
  20. andale927

    andale927 Greenie Member

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    Go ahead and post another one if you have it. Honestly won't help much though. The tune is clearly not even in the ballpark of being reasonable. Find a different tuner once you replace/rebuild your engine.
     
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