Damper theory

Discussion in 'Engine Combos and Dynometer Database' started by JohnHancock, Oct 5, 2018.

  1. JohnHancock

    JohnHancock Well-Known Member

    Was poking around and found an article on ATI Super dampers. I had a fluid damper on both my dragsters and had no ptoblems. Anybody got opinions or dyno data supporting one or the other?
     
  2. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    ATI is the most popular here used.

    TCI Rattler is my Own Choice.
    John Kasse used in Engine Masters many times and won lots of money.
    He has won more than any other in that contest history.
     
  3. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    almost 60% of the articles, Ive read through show the ATI has a minor advantage,
    Ive generally built engines using the top tier version fluid dampers and Ive not had any issues.
    from an engineering stand point I like the fluid damper concept of a heavy ring suspended in a thick viscus, silicone base, grease,
    I can easily see it effectively, absorbing shock loads effectively over a wide range of rpms
    keep in mind both companys sell a much less expensive damper line,
    so you need to ask questions, and not assume all products from a manufacturer are identical or designed for your application
    .
    that would be like saying chevys SUCK, because you bought a chevy VOLT..... if you were looking for the speed and handling of a corvette or or carry capacity of a c2500 pick-up


    read through all links and sub-links
    https://www.dieselarmy.com/engine-tech/engine/how-it-works-viscous-dampers-a-k-a-harmonic-balancers/

    https://www.dragzine.com/tech-stori...ers-are-crucial-to-the-health-of-your-engine/

    http://www.laskeyracing.com/shop/harmonics.htm

    https://fluidampr.com/how-a-fluidampr-works/

    http://www.dieseltechmag.com/2009/02/dt-tested-fluidampr-performance-damper

    https://motoiq.com/project-golf-r-mkvii-fluidampr-test/3/

    http://garage.grumpysperformance.com/index.php?threads/cheap-damper-ballancer-source.279/#post-1673
     
    Last edited: Oct 6, 2018
  4. JohnHancock

    JohnHancock Well-Known Member

    When I was reading about the ATI damper I got the impression it had mounting holds for blower pulleys. I have a huge aluminum adapter for my pulley. It also said the fluid damper was better below 7k rpm and o doubt I’ll ever see that rpm.
     
  5. Indycars

    Indycars Administrator Staff Member

    Are you referring to one article or several? How about a link to that article if you can remember?
     
  6. JohnHancock

    JohnHancock Well-Known Member

    Rick I just saw an advertisement for super damper and never heard of it so I googled that and read several articles including comparisons with fluid dampers and rattlers.
     
  7. Indycars

    Indycars Administrator Staff Member

    I see, I went with the Fluidampr 62260D 6-1/4" OD Gold Harmonic Damper for my TBucket this last winter.
     
  8. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I have seen Fluid Dampner get Ruined Dirt track Racing.
    Big Rocks hit the Fluid Dampner and put a big dent in it.
    So inner ring no longer floated around.
    Be rare to happen on the Street but it can happen.
     
  9. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Seen one fail in a Big Nitrous car BBC too.
     
  10. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    if your beating the crap out of any performance part with big rocks....
    its hardly the fault of the component if it fails
    unless your talking about a back hoe bucket!
     
    Indycars likes this.
  11. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    No.
    That is dirt track racing.
    Hidden big Rocks get dug up from the track undersurface.
    Car up front digs up and throws into the dirt track car behind.
    Near all Run ATI Super Dampner.

    Seen one time a Defective Small block Chevy Fluid Dampner on the street.
    Laser weld failed.
    Leaked out all the silicone fluid.
    Summit covered the warrenty.

    I prefer to avoid.
    Stock.
    ATI SFI.
    TCI RATTLER SFI Pendulum style balancer dampner.
     
  12. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    The high horsepower dirt track cars dig down 1 -2 feet into track surface after race night Grumpy.
     
  13. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    I don,t care where the rocks your bouncing off your engine came from,
    if the part fails after being smashed with ROCKS its hardly defective, engine part design.
    no engine is designed to be hit from the outside with large rocks or projectiles impacting on it.
    how long would you last if some moron started beating on you with a large jagged rock!
     
  14. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I guess you don't have Midwest style dirt track racing in Florida.
    Telling you its true.
    Does happen.
    We Ran ATI Super Dampner.
     

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