Photo from header shows a dark number 8 exhaust port

Discussion in 'Drivetrain, Exhaust and Electrical' started by Mad Hatter, Sep 23, 2018.

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  1. Mad Hatter

    Mad Hatter Gotta go Faster

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    The car was up on the lift installing MT82 number 5 ( no comment!), when the mechanic noticed that the number 8 exhaust port was much darker then the next.

    upload_2018-9-24_0-15-6.png


    Will do a compression check and move the coils around a bit too see if it improves! Should I feel as worried as I do?? Not burning smoke and the car was strong at the last race.... And off to the track on Saturday......
     
  2. TMSBOSS

    TMSBOSS TMO Addict

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    Is it possible your tuner has richened the #8 hole to ensure you don’t have a lean burn issue?
    You might want to drop a line to AED.
     
  3. Grant 302

    Grant 302 OPM Spent: $587,402 Moderator

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    I think it's worth further investigation. The compression check should be good enough, IMO. I never like seeing differences in the ports. Can't say I ever looked for differences on the header side.

    Good luck and I hope it's nothing.
     
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  4. Mad Hatter

    Mad Hatter Gotta go Faster

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    Thanks guys, doing the compression test today and I will ask Shawn at AED about number 8.
    Now that you mentioned it, seem to remember reading some where the AED does run number 8 richer to keep the temps down.
     
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  5. Mad Hatter

    Mad Hatter Gotta go Faster

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    Photo ...Foto... sorry getting all spanglish again.
     
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  6. Grant 302

    Grant 302 OPM Spent: $587,402 Moderator

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    Lol. No need to be spelling and grammar police...I think anyone would know what you meant.
     
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  7. 302BOB

    302BOB TMO Addict

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    Spell em as you say em works for me....;)
     
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  8. VoodooBoss

    VoodooBoss Rick Moderator

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    Using the Thread Tools you can edit thread titles. :) I think I spelled it correctly.

    FWIW the #8 cylinder is the most popular to go boom. As @TMSBOSS stated i wouldn't be surprised if your tuner set it up a bit rich.

    When mine blew #8 it was either too lean of a fuel mixture or I dropped a valve. Due to the massive holes in the crank I always leaned towards dropping a valve but it was never determined what the cause was.
     
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  9. Mad Hatter

    Mad Hatter Gotta go Faster

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    Thanks, now I can sleep better!!
     
  10. Grant 302

    Grant 302 OPM Spent: $587,402 Moderator

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  11. Mad Hatter

    Mad Hatter Gotta go Faster

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    Lol!!! Funny guy!! o_O

    this just in from Shaun.....

    "For all motor cars we do not change fueling on individual cylinders, we leave it as Ford programmed, which if memory serves is a little richer on #8.

    We also pull timing on #8 compared to the other cylinders on pump gas applications."
     
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  12. Mad Hatter

    Mad Hatter Gotta go Faster

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    Reading that again.... amazing magic they can do now... pulling timing on a individual cylinder! Or am I as old as I feel?
     
  13. Grant 302

    Grant 302 OPM Spent: $587,402 Moderator

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    A lot of control like that was already available from SCT when I was tuning my 2000. I was doing the bulk of it in '02 or '03. Powerful stuff if you really dig into it, even back then.
     
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  14. Mad Hatter

    Mad Hatter Gotta go Faster

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    Happy, Cylinders 5,7 and 8 were 125 and 6 was 130. Off too the races on Saturday... if it does not get rained out!
     
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  15. TMSBOSS

    TMSBOSS TMO Addict

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    Great news. Weather should be warming there now. Enjoy.
     
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  16. Mad Hatter

    Mad Hatter Gotta go Faster

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    Looks like rain and the race postponed till mid October.... oh well..... I guess that means I can port the Boss Manifold :)o_O

    I kind of like running in the rain, but the chance of accidentes goes through the roof..
     
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  17. DocB

    DocB TMO Advanced

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    Running in the rain will surely teach you how your car handles and how to handle your car. It is all about finesse. Rain is definetly the great equalizer. I recently ran in a pouring rain race and turned the third fastest lap time. If you have the opportunity, do it. It will be a great learning experience, especially if it is a track day and you can learn at your own pace. What you learn will carry over to race day and you just might be surprised.
     
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  18. Mad Hatter

    Mad Hatter Gotta go Faster

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    2019 rules just came out... they will only cancel a race if it snows Lol... Suits me well, I spent a significant part of my life driving in snow here in the cordillera. Lots of fun!!

    Still remember a life changing moment when I was 13 years old and the gokart track we used to go to was closed due to a torrential thunder storm... We begged the owner to let us have a try and he let us go...... Is a memory that's etched in my brain.
     
  19. DocB

    DocB TMO Advanced

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    So you understand what I am talking about.
    You're feeling it.
    Too many are afraid to race in the rain, but thet don't know what they are missing.
    Just do it and learn.
     
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