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Hot Rods RUNNING A BANGER WITH NO MUFFLERS???

Discussion in 'The Hokey Ass Message Board' started by ALLDONE, Nov 10, 2024.

  1. ALLDONE
    Joined: May 16, 2023
    Posts: 3,066

    ALLDONE
    Member

    wondering what a banger with no mufflers would sound like... if you split it 2 to 1 and straight pipes, couldn't be any louder than a harley????? and seems it wouldn't be that loud unless you run the motor to red line??? anyone do it???
     
  2. adam401
    Joined: Dec 27, 2007
    Posts: 3,001

    adam401
    ALLIANCE MEMBER

    IMG_1358.jpeg I have this roadster straight pipe to just in front of the passenger rear wheel. It’s not that loud and doesn’t sound too terrible. It’ll get something a little more permanent in the future.
     
    alanp561, AVater and flatheadpete like this.
  3. alchemy
    Joined: Sep 27, 2002
    Posts: 22,251

    alchemy
    Member

    Adam we can barely hear your video. It is rather quiet.
     
  4. ALLDONE
    Joined: May 16, 2023
    Posts: 3,066

    ALLDONE
    Member

    didn't you post a video awhile back?
     
  5. rusty rocket
    Joined: Oct 30, 2011
    Posts: 5,230

    rusty rocket
    Member

    I don’t know about four cylinder but I have never run mufflers on any of my flatheads. They are a bit loud when your in the throttle but not offensive.
     
  6. jet996
    Joined: Jul 10, 2024
    Posts: 62

    jet996
    Member
    from WY

    I run my bangers 1-4 and 2-3 split and they're pretty quiet puttin' around but wind them out and they're loouud!
     
    ALLDONE and Spooky like this.
  7. That is similar to what I want to do. I dont have the written plan in front of me but I was gonna do the split and run 2 pipes to each side. Not sure how it would sound but I was hoping to have a twin cyl. motorcycle effect on each side. If memory serves me right it was 1-3 and 2-4
     
  8. Model A Gomez
    Joined: Aug 26, 2006
    Posts: 1,805

    Model A Gomez
    Member

    I ran a glasspack on my 30 pickup with a warmed over B engine and will do the same with the banger powered 29 roadster pickup I'm building now. The 30 had a Red's header and the 29 will have a stock exhaust manifold, don't think the price of a header is justified on what I'm building.
     
  9. ALLDONE
    Joined: May 16, 2023
    Posts: 3,066

    ALLDONE
    Member

    when # 1 fires It pulls the air out of # 2 and when #4 fires it pulls the air out of #3... when #1 fires theres a dead spot skipping #2... same with #2 skiping to #3...when You split you get a poping in the exhaust, and probley a reversion and for sure less low end torque
     
    alanp561 likes this.
  10. ALLDONE
    Joined: May 16, 2023
    Posts: 3,066

    ALLDONE
    Member

    duel exhaust, live lake pipes... header split 1-2 and 3-4... but with mufflers and flex pipes...
    B banger 7-1 head down draft stromberg ....
    potato potato, potato potato, potato potato, potato potato

    IMG_1294 - Copy.jpg IMG_1296 - Copy.jpg IMG_8808[8524].jpg
     
  11. jet996
    Joined: Jul 10, 2024
    Posts: 62

    jet996
    Member
    from WY

    @ALLDONE -With all due respect the firing order thing has been done to death, none of my bangers lack for low end torque, the plugs all show very even color and I like the sound of the split. Reminds me of a pair of a G15 Matchless I used to ride.
     
    Speccie likes this.
  12. SS327
    Joined: Sep 11, 2017
    Posts: 3,605

    SS327

    No it can’t be done I’m afraid. The Karen’s will get you!
     
  13. alchemy
    Joined: Sep 27, 2002
    Posts: 22,251

    alchemy
    Member

    I’ve got a project that will use an A motor, and I’ll need to build a header (with no muffler) for it. This talk about which split to use is interesting. But does it really have much effect on the engine unless it’s a real “built mill”?
     
  14. ALLDONE
    Joined: May 16, 2023
    Posts: 3,066

    ALLDONE
    Member

    your's is already done and you are happy... win win..
     
  15. ALLDONE
    Joined: May 16, 2023
    Posts: 3,066

    ALLDONE
    Member

    yes it matters..I went off dyno results.... the a is a harley type motor, and all done at 3000 rpms...the torque comes in sooner with a 12-34 split... on a 13-42 split the exhaust air is farther down the pipe and has less suction pull when the next cyl. fires.. of coarse pipe size matters.... it's like a good way to kill the torque on a sm block chevy... put dragster zoomies on it... every cyl fire it has to push the exhaust out..

    not getting much out of a carb'd A or B banger...
     

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