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  1. #1
    Join Date
    Sep 2012
    Posts
    613

    Default Need help explaining RR spring

    How come when I increase the RR spring rate I actually get more RR shock travel. That bafffles me. I also can turn more RPMS overall.

  2. #2
    Join Date
    Aug 2018
    Posts
    5,234

    Default

    The short answer.....more side bite/ faster lap times/more rpms!

  3. #3
    Join Date
    May 2007
    Location
    Batavia, OH
    Posts
    13,636

    Default

    Quote Originally Posted by ride height View Post
    How come when I increase the RR spring rate I actually get more RR shock travel. That bafffles me. I also can turn more RPMS overall.

    Good answer below yours. If you get more grip, you get more weight transfer. The 5th coil is another place you may observe more spring is more travel at times.
    Modern Day Wedge Racing
    Florence -2
    Atomic - 1

  4. #4
    Join Date
    May 2010
    Posts
    172

    Default

    Probably because you hit a hole the time you put your stiffer spring in.. were you using Data Aq or just a travel indicator?

  5. #5
    Join Date
    May 2007
    Location
    Kansas
    Posts
    1,940

    Default

    Quote Originally Posted by Austin34471 View Post
    Probably because you hit a hole the time you put your stiffer spring in.. were you using Data Aq or just a travel indicator?
    Are you saying that comparing 3 laps out of a 8 lap run might vary a ton?


  6. #6
    Join Date
    Apr 2010
    Posts
    851

    Default

    The last few weeks I’ve been progressing on rr rate and all other things the same, my travel has gone up but the car has steadily felt worse. Would I see more travel because the stiffer spring is steadily gaining more load?

  7. #7
    Join Date
    May 2007
    Location
    Port Royal PA
    Posts
    228

    Default

    As you are progressing in rate , are you taking turns out?

  8. #8
    Join Date
    Apr 2010
    Posts
    851

    Default

    yea same heights and scale numbers. i feel like i need to just ignore my shock travel indicator and go from what it feels like

  9. #9
    Join Date
    May 2007
    Location
    Batavia, OH
    Posts
    13,636

    Default

    Quote Originally Posted by riddle28 View Post
    yea same heights and scale numbers. i feel like i need to just ignore my shock travel indicator and go from what it feels like
    You need to adjust based on the stopwatch.
    Modern Day Wedge Racing
    Florence -2
    Atomic - 1

  10. #10
    Join Date
    May 2007
    Location
    Kansas
    Posts
    1,940

    Default

    Quote Originally Posted by riddle28 View Post
    yea same heights and scale numbers. i feel like i need to just ignore my shock travel indicator and go from what it feels like
    The travel indicator is limited info and is only gonna show the max travel once out of the time on the track until it's reset. As my picture shows it can vary wildly, from hitting a hole or just a different line or just getting into corner funky one lap. it's not showing you a true average of travels and should be treated with a grain of salt.

    Like my graph shows (say that was a heat race of 8 laps and I showed 3 of those laps and all the rest of the laps where close to the red and blue lines but going only off the marker you would be reading the green line at 2" of travel when the real average was closer to under 1.5".

    Like engineer said tune off lap times and to a point with driver feel, while we do/might adjust things to get certain travels or attitude ultimately the stopwatch is the judge, jury and, executioner so to speak.

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