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  1. #1
    Join Date
    Aug 2007
    Posts
    680

    Default When to lead RR?

    When should you lead the RR? How far is too far? From what I read this would make the car tight on throttle....what about off throttle?

  2. #2
    Join Date
    Jun 2009
    Location
    Central IL
    Posts
    654

    Default

    leading the rr will tighten the car everywhere. it makes the rear of the car want to drive to the left. but how tight and where at depends on how much your car rolls over, and how much roll steer you put into it. if you have a lot of roll steer, it'll be tight when flat, and loosen as it rolls over.

  3. #3
    Join Date
    May 2007
    Location
    tulsa america
    Posts
    2,687

    Default

    Quote Originally Posted by missile07 View Post
    When should you lead the RR? How far is too far? From what I read this would make the car tight on throttle....what about off throttle?
    i wouldnt go past straight up. To me its a terrible feeling.

  4. #4
    Join Date
    Feb 2008
    Location
    colchester il.
    Posts
    2,172

    Default

    if your talking a leaf spring chassis than you may want to lead the rr 1/4 to 1/2 depending on the track .

  5. #5
    Join Date
    Jan 2010
    Location
    WV
    Posts
    195

    Cool

    Wow thats alot or rr lead for a leafspring car dnt ya think?????????????

  6. #6
    Join Date
    Aug 2007
    Posts
    746

    Default

    I trail my right rear 1/4 inch on a normal track. Leafs need the trail to rear steer and turn in easier.

  7. #7

    Default

    all the leaf cars i've had were tight feeling and needed the RR trailed to get it to turn because no rear steer can be built in them. stagger helps but alot of stagger puts drag on the straights as does toeing the rear but not as bad as stagger when running leaf i run around 1/4'' back on the RR

  8. #8
    Join Date
    Aug 2007
    Posts
    680

    Default

    not a leaf car...4bar on both sides

  9. #9
    Join Date
    Feb 2008
    Location
    colchester il.
    Posts
    2,172

    Default

    Quote Originally Posted by frontrunner View Post
    Wow thats alot or rr lead for a leafspring car dnt ya think?????????????
    yes I was trying to think of a rear set up were you might lead the rr as most bar cars have rearsteer.my thought was if the car was loose you might add lead to the rr.

  10. #10
    Join Date
    Jun 2009
    Location
    Central IL
    Posts
    654

    Default

    Quote Originally Posted by racin6mod View Post
    yes I was trying to think of a rear set up were you might lead the rr as most bar cars have rearsteer.my thought was if the car was loose you might add lead to the rr.
    yes you can decrease trail to tighten up the car. but generally you won't put +lead into it, they're almost always trailed at least a little.

  11. #11
    Join Date
    May 2010
    Posts
    632

    Default

    Less oversteer will tighten on exit and tighten entry. I have my mod, 4 bar, straight up in the rear. More rear steer when it's tacky and less when dry slick.

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