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  1. #1
    Member schmoo's Avatar
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    Default RWD Lifting Rear Wheel

    Ummm. Never seen this before? Too much rear bar?

    IMG_6122.JPG
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  2. #2
    Dramagnet Jethro's Avatar
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    turn 5 @ CMP from the marshal stand, see that sometimes.

  3. #3
    I brake for baguettes and taco blankets mightymousetech's Avatar
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    Quote Originally Posted by schmoo View Post
    Ummm. Never seen this before? Too much rear bar?
    Yup.
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  4. #4
    Elite Member wing's Avatar
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    Yup S2K did it all the time on sticky tires, kind of annoying with shitty diff because zero wheel drive at that point.
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    Member schmoo's Avatar
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    Chris,

    Do you think this would feel like a slipping clutch from the driver's seat?
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  6. #6
    Dramagnet Jethro's Avatar
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    on my FWD car that's what it felt like....slipping clutch.

  7. #7
    Elite Member wing's Avatar
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    Somewhat it does, yes. Not exactly though. I always could tell in auto-x. Come out of slow corner mash throttle, nothing happening... then wheel spin, then go time!
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    CHAMP 1Morelap's Avatar
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    bumpy parking lot
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  9. #9
    Stupid sexy shlammed shlammed's Avatar
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    would feel like slipping clutch but smell of tires.


    Get an OS giken diff.


    Oh, and stiffen the front sway. You have a lot of roll in general... I wouldn't say its too much rear... more like too little front.
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  10. #10
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    Quote Originally Posted by wing View Post
    Somewhat it does, yes. Not exactly though. I always could tell in auto-x. Come out of slow corner mash throttle, nothing happening... then wheel spin, then go time!
    Sounds like driving a turbo miata...
    "Don't fear failure so much that you refuse to try new things. The saddest summary of a life contains three descriptions: could have, might have, and should have." -- Louis E. Boone

  11. #11
    I brake for baguettes and taco blankets mightymousetech's Avatar
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    Quote Originally Posted by schmoo View Post
    Chris,

    Do you think this would feel like a slipping clutch from the driver's seat?
    Well, it would be about the same as lifting both rear tires off the ground and stepping on the gas (ZIIIIINNNGGGGG!!!) unless you have a clutch type LSD.

    Soften up the rear end and let it squat down on the rear tires.

    Same reason why we pull the front sway bar off when tracking a FWD car.
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    Quote Originally Posted by GIF-PWR View Post
    I was wrong about this one; enjoy this moment.
    Quote Originally Posted by GIF-PWR View Post
    turns out for the second time in my life, I was wrong.


    But there's a bigger point here. The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving.
    R&T April 2013.

  12. #12
    Member schmoo's Avatar
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    I used to run the front bar stiff, but I've had it on soft for a while now and I kinda like it.

    I guess I could stiffen the front for autox and put back to soft for track.
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  13. #13
    Senior Member raggedrabbit's Avatar
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    You could stiffen the rebound on the rear shocks to slow the weight transfer to the front too. A stiffer front bar (or softer rear bar; either one upsets the roll stiffness distribution) might limit your ultimate front grip. More rear spring less rear bar would help too, but you will have a harsher ride.

    This is why shock tuning happens last.
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  14. #14
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    You try no rear bar yet?
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    Member schmoo's Avatar
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    I'll experiment with it a bit at the next events in St. Eustache.
    condor888000's Hero
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  16. #16
    Senior Member sb_600's Avatar
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    Schmoo I ha the same issues on my car. Ended up disconnecting the rear bar and it helped a ton. Then I got stiffer rear springs, aero, and reconnected the swaybar.
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  17. #17
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    I love no rear bar
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  18. #18
    Junior Member Chris916's Avatar
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    Yup, my car does that at bogie, disconnected rear bar helps a lot, but need to play with spring rates to fully get rid of it.

  19. #19
    Member schmoo's Avatar
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    I have 3 levels of adjustment available at the rear:

    - soften FM bar,
    - install stock MSM bar, and
    - no bar

    I'll try things out and see how it goes.

    Thanks everyone!
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  20. #20
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    Quote Originally Posted by schmoo View Post
    - soften FM bar,
    - install stock MSM bar, and
    - no bar
    I'd try the stock MSM bar, would be a good half-way point between the FM bar and no bar at all.
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