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Technical ***April 2021 Banger Meet Thread - Fooling with Bangers***

Discussion in 'Traditional Hot Rods' started by Jiminy, Mar 31, 2021.

  1. Crazydaddyo
    Joined: Apr 6, 2008
    Posts: 3,204

    Crazydaddyo
    Member

    B crank in Concrete.jpg Concrete re enforcment.jpg

    I found a good use for a broken crankshaft today.

    .
     
    guitarguy, winduptoy, G Baese and 3 others like this.
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  3. Jet96
    Joined: Dec 24, 2012
    Posts: 1,299

    Jet96
    ALLIANCE MEMBER
    from WY

    FECDB7BB-FCFE-4593-A0ED-BD2C1855BE5D.jpeg Going thru my files and found this...
     
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  4. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,398

    winduptoy
    ALLIANCE MEMBER

    Any benefit from the exhaust thrust is cancelled by the additional weight, oh, but the sound....
     
    barrnone50 and Jet96 like this.
  5. Actually, with the firing order of 1-2-4-3. "Tuned Exhaust" is NOT accomplished with merging 1 & 4 primaries. and 2 & 3 primaries. Such configuration, according to Ricardo's studies are for a 1-4-3-2 order. Exhaust Tuning is basically calculated using the firing order, size of the cylinder volume, power & torque curve of the engine (usually dictated by valve timing), and cross-section of the primaries. Example: if I were to put a "Tuned Exhaust" on MY engine (which I have not); I would have to bring primaries 42 inches long for 1 and 2 cylinders and merge them in a "Collector" with cylinders 3 & 4! This would probably give exhaust extraction beginning at between 4000 & 5000 r.p.m. The phenonium is that each individual exhaust charge pulls the next in behind it!
     
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  6. brjnelson
    Joined: Oct 13, 2002
    Posts: 521

    brjnelson
    Member

  7. denis4x4
    Joined: Apr 23, 2005
    Posts: 3,751

    denis4x4
    ALLIANCE MEMBER
    from Colorado

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  8. John,
    that firing order would require a different crankshaft and the order would be 1,4,2,3

    J
     
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  9. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,398

    winduptoy
    ALLIANCE MEMBER

    brjnelson likes this.
  10. patina steve
    Joined: Oct 3, 2006
    Posts: 243

    patina steve
    Member

    I wonder if exhaust tuning to help pull the intake charge into the cylinder `works with the Siamese intake port ❓
     
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  11. Star 351
    Joined: Sep 9, 2013
    Posts: 41

    Star 351
    Member

    My 4 into 1 header i made with my dad follows the firing order [​IMG][​IMG]
    It wasn't practical to make them equal length due to being right hand drive and having an oil filter, but I think it has a unique sound for a banger
     
    Old Dawg and winduptoy like this.
  12. Jiminy
    Joined: Oct 25, 2012
    Posts: 396

    Jiminy
    Member

  13. Jet96
    Joined: Dec 24, 2012
    Posts: 1,299

    Jet96
    ALLIANCE MEMBER
    from WY

    @Star 351 - that's a nice looking header, RHD looks a pain to work around!
     
    Star 351 likes this.
  14. Well done!
     
    Star 351 likes this.

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