User Tag List

Results 1 to 18 of 18

Thread: Smoke spurt when hitting boost?

  1. #1
    Join Date
    Apr 2009
    Location
    Coffs Harbour
    Age
    35
    Posts
    296

    Default Smoke spurt when hitting boost?

    Is this normal? I remember watching some youtube video about a year or so ago of some douche driving his mazdaspeed 3 in a carpark doing doeys and shiz and smoke was spitting out everywhere and I'm pretty sure I read a comment on it saying it was only because these engine runs rich... So I'm hoping this is what is happening with mine.
    Just when I'm say cruising down the highway and put my foot down and the turbo kicks in, a puff of smoke shoots out in a pretty large cloud. Is this normal? Or should I be taking it somewhere to be checked?
    Thanks people

  2. #2
    Join Date
    Jun 2009
    Age
    59
    Posts
    8,042

    Default

    Quote Originally Posted by steviekfc View Post
    Is this normal? I remember watching some youtube video about a year or so ago of some douche driving his mazdaspeed 3 in a carpark doing doeys and shiz and smoke was spitting out everywhere and I'm pretty sure I read a comment on it saying it was only because these engine runs rich... So I'm hoping this is what is happening with mine.
    Just when I'm say cruising down the highway and put my foot down and the turbo kicks in, a puff of smoke shoots out in a pretty large cloud. Is this normal? Or should I be taking it somewhere to be checked?
    Thanks people
    I get that, I see it more at night with the lights behind me from cars and on the dyno, small amounts and towards the end a big black puff comes out ... Boys say it's normal

  3. #3

    Default

    normal.. 10:1 AFrs will do that..

  4. #4
    Join Date
    Jan 2010
    Location
    QLD - Brizzy Southside FTW!
    Posts
    1,031

    Default

    Yea that situation seems normal on my gen2 as well... Happens after u hit boost and take it past to 5000rpm

  5. #5
    Join Date
    Nov 2008
    Location
    Brisbane
    Age
    47
    Posts
    3,387

    Default

    I love it! Definitely a "feature" of the MPS

  6. #6

    Default

    007 smoke screen engaged...

  7. #7

    Default

    The colour of the smoke should tell you something...

  8. #8

    Default

    I've never noticed it?

  9. #9
    Join Date
    Jan 2009
    Location
    Perth, WA
    Age
    52
    Posts
    6,388

    Default

    I usually have my eyes on the road ahead when hitting full boost However have been told about my smoke screen too

  10. #10

    Default

    noticeable at night..

    as long as its not blue.. dont worry

  11. #11

    Default

    - Short puff of dark to black - no problem - just rich on initial spool-up. Smells a bit like diesel particulates in these engines.
    - White or blue-ish - problem. Especially if it persists and blots out those behind you! :-P - It'll smell of oil too.

  12. #12

    Default

    I was following my missus when she put her foot down, i was suprised how rich it does run under boost it wasnt just a puff either maybe it goes richer when its sitting on the limiter ?

  13. #13
    Join Date
    May 2009
    Location
    Bathurst
    Age
    42
    Posts
    1,930

    Default

    I've had a few comments about this smoke to on occasions. When they couldn't keep up with me, they realised there is nothing wrong with my car

    I first noticed it on last years Merimbula cruise. All the MPS 3's did the same. Didn't notice it so much on the 6's though

  14. #14
    Join Date
    Nov 2008
    Location
    Brisbane-North-City
    Posts
    5,310

    Default

    Quote Originally Posted by DISIMS3 View Post
    I've never noticed it?
    Same here.


    Im never watching back when Im about to launch the crap out of the car.

  15. #15

    Default

    GTTOOL, I guess it's stating the bleeding obvious, but the amount of smoke related to the degree of richness will depend on your tune. I don't know if you run a computer program to let you see the TP/RPM/FUEL settings throughout the performance range. If you do it might be adjustable to better optimize. Manufacturers' settings will build in a fair bit of protection by way of timing retard and increasing richness at the upper end too, to both reduce detonation risk as well as temperatures.

    I don't know how some guys are launching their cars, but I maintain a fair bit of respect for my transmission and tyres, feed in mild power until I'm rolling and then let 2nd and 3rd do the big haul. This also gives the engine a chance to get the idea that it is expected to do some real work, rather than just goosing it from idle, when it is unsurprising that the ECU just dumps in heaps of fuel. Although one's attention is usually on the road ahead when straightening the right leg and concentrating on keeping the whole rig straight (especially in 3's), I do check behind and never see smoke with my tune and manner of take-off.

    In any event. there are few situations when street light drags are beneficial, as you usually get pulled up at the next set and it was all a waste of time and effort.
    Last edited by Doug_MPS6; 05-05-2010 at 12:15 PM.
    CP_e Standback & PNP; CP_e 3" SS Downpipe; Corksport FMIC with Top-mount K&N filter & OEM Ram CAI; Turbosmart BOV; Dashhawk; Prosport Boost Guage; JBR solid shift bushes; DBA 4000 Wiper-Slot front rotors; Hawk Ferro-Carbon HPS Street front brake pads (@ 69,000km); Sumitomo HTRZIII's in 225/45 x 18

  16. #16

    Default

    Thanks for this thread

    I noticed this the other night when I had a WRX giving me some curry and when I looked in the rear view mirror while gunning it I shit myself at the black smoke coming out the back after flooring it. It made me back off at first and the WRX blasted me as a result

    Since then I found that the gen2 3MPS does it all the time. So I figured it was a richness thing and don't worry about it too much. I see other turbo cars do it too. (I am inexperienced at turbo car behaviors)

    Cheers

  17. #17

    Default

    all normal..

    wait till you get a small afterfire.. (not a backfire)... all that unburnt fuel can ignite on the rare occasion.. then you will see smoke



    Doc

  18. #18
    Join Date
    Nov 2008
    Location
    North side, Vic
    Age
    37
    Posts
    6,745

    Default

    Sufficiently discussed, its normal
    any issues please PM me

Posting Permissions

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