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Ansa exhaust flow

Discussion in '308/328' started by Steve King, Sep 26, 2008.

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  1. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,367
    NY
    #1 Steve King, Sep 26, 2008
    OK I have gone through about 20 different search posts and have found a lot of info on fabing up replacement mufflers for the 308's but I was tring to find out what side feeds what bank. So my simple question is if you look from the rear of the car are the right exhaust tips fed from the rear (1-4 , back of the car) cyl. bank and the left tips fed from the front (cockpit 5-8) bank. This is a non-cat 77 GTB. Thanks
     
  2. davebdave

    davebdave Formula 3
    Owner Silver Subscribed

    Mar 18, 2007
    2,381
    Northern VA
    Full Name:
    Dave W
    #2 davebdave, Sep 26, 2008
    I am a shade tree mechanic at best but what I would do is remove a spark plug, put my finger over the hole,turn the engine untill I felt the compression stroke, then turn the engine 3/4 turn past TDC so that the exhaust valve is open, then blow compressed air in the cylinder and listen.
    I am sure someone will have a reason why this would cause the engine to explode.
    dave
     
  3. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
    5,379
    NWA
    Full Name:
    Paul
    #3 Artvonne, Sep 26, 2008
    The Ansa blends the two flows internally through baffles. But they generally flow more exhaust out one side, the left IIRC, than the right side.
     
  4. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    10,213
    San Antonio
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    Russ Turner
    #4 snj5, Sep 26, 2008
    +1; from what I have seen they are blended.
     
  5. BigTex

    BigTex Seven Time F1 World Champ
    Owner Rossa Subscribed

    Dec 6, 2002
    79,406
    Houston, Texas
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    Bubba
    #5 BigTex, Sep 26, 2008
    Correct they dump into the can and "cross flow" on the ANSA so it 's not as you describe at all......
     
  6. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,367
    NY
    #6 Steve King, Sep 26, 2008
    Interesting because I have a slight lean miss in the right hand exhaust tips only so I wanted to see if it was due to 1 carb or extender. Thanks for the info. I'll just have to sort it out , it's intermittent and is more noticable after the motor is up to temp. OK I'll just need to do some fishing. Thanks
     

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