Home Forums Chassis & Handling camber vs grip level

This topic contains 8 replies, has 5 voices, and was last updated by  Broque Ward 5 years, 6 months ago.

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  • #5214

    William Martin
    Participant

    Just curious: last time out my left front tire really got chewed up on the inner edge. Thought something must be wrong, so took front end apart & measured everything I could figure out how to measure, and didn’t really find anything major wrong. What I did find was that the spindle vs king pin angle does not match the angle between the king pin & vertical reference, net result is some built in negative camber at “neutral” pill setting. Is this normal for any track condition, or does it demand a high-grip situation to make it work? Last event’s track was anything but high grip… appreciate any insights!

    -bill

     

  • #5256

    Ray Lovestead
    Participant

    Is the track mainly right hand turns?

    How does the tread look (does it look like long wavy grains in the tire)?   Does it look or feel like it is understeering?  Too much negative camber can cause some understeer on the exit of the turn – but I find that I always use a little bit of negative camber.

    Did you get a chance to check the tire pressures on all 4 tires?

    Ray

     

     

     

     

    "Karting Expert Since 2015"

  • #5275

    TJ Koyen
    Moderator

    Karts already have negative camber built in so your neutral setting will yield some negative camber. Your tires will always wear more on the inside edge.

    Driver/Coach/Wrench : Innovative Performance/Exprit
    Owner : Oktane Visual - www.oktanevisual.com
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  • #5286

    William Martin
    Participant

    Is the track mainly right hand turns? How does the tread look (does it look like long wavy grains in the tire)? Does it look or feel like it is understeering? Too much negative camber can cause some understeer on the exit of the turn – but I find that I always use a little bit of negative camber. Did you get a chance to check the tire pressures on all 4 tires? Ray

    <hr />

    <div class=”bbp-reply-signature”>“Karting expert since 2014″</div>

    Yes, mostly right hand turns. I expected some extra wear on the left front, but not this much… It was sliding a lot more than I liked, due to downhill turns. Maybe need some skiing lessons! Tire pressures were “normal”, whatever that means.

  • #5288

    William Martin
    Participant

    Karts already have negative camber built in so your neutral setting will yield some negative camber. Your tires will always wear more on the inside edge.

    By comparison with some other karts on the same track, this was kind of gross. I was just wondering about the effect of track grip level on what the desired camber setting might be…

     

  • #5326

    Jeff Field
    Participant

    Sounds like a standard “push” wore out your front tire.  Try some width or other changes to loosen it up next time.

  • #5371

    TJ Koyen
    Moderator

    I’ve always found more negative camber to release the kart better off the corner. If you’ve got too much initial lift, you might want to go to a bit more negative camber to settle rear down on turn-in and help the kart roll more controllably off the corner.

    There isn’t a hard and fast rule with camber in regards to track grip levels really.

    If you’re getting excess front wear, I’d agree with the above that you’ve got understeer. I’d set your camber to it’s neutral setting, that should work for almost any condition, and I’d go a bit wider on front track width.

    Driver/Coach/Wrench : Innovative Performance/Exprit
    Owner : Oktane Visual - www.oktanevisual.com
    www.facebook.com/oktanevisual
    www.instagram.com/oktanevisual

  • #5402

    William Martin
    Participant

    Thanks everyone for the feedback. Will try some adjustments based around neutral camber & see what happens.

     

  • #5754

    Broque Ward
    Participant

    wait, what are you running for tire pressure you just said they were normal and then said whatever that means… what psi were you running? you said the kart was skidding more then youd like… how do you know your not running too much or too little tire pressure to allow the wear to be caused by tire pressure? or have you played with the tire pressure before adjusting the kart?

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