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Apr
11

FKI April Teaser: Chassis Tuning – See if you can figure it out…

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This is the article the guys I kart with didn’t want me to write.  Why?  Because this tuning area caught out one of my teammates at a previous SuperNats so they didn’t want me to give the competition any advantage by bringing this area to their attention.  Since the area may seem obvious once I mention it, let me tell you what was going on with my friend’s go kart and see if you would have guessed the solution to the problem beforehand.

For the SuperNats, one of my teammates bought two identical chassis to run in two classes.  Neither chassis was bent or had any defects.  With what he thought were identical set-ups, one go kart was on rails and the other had a big turn-in to mid-corner oversteer.  He called me (I missed that year) to get my opinion and we tried everything we could think of to change on the rear to give the rear more grip – longer hubs, softer axle [30mm TonyKart – see axle article – FKI September 2010], increase tire psi, rear to full width, raise rear ride height, different seat position.  Nothing seemed to work, he still had oversteer.  I had him double check the front caster and toe out setting, they were exactly the same.  So, what was the issue?

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Categories : Chassis Tuning

Comments

  1. aristotle says:

    Was it the seat? position/mounting?

  2. Hey Allen,
    Sorry, this went into the spam section of my website dashboard. Anyway, while that is a good guess, no, that was not what it was. You’re welcome to guess again or, if you subscribe, you can read all about the answer and how we (the driver I mentioned and the rest of our team) now use this area to tune with all the time.

    Thanks,

    Nick Firestone

  3. […] Myth Busting the Mystery of Toe – FKI February 2011.  For more on Ackerman please refer to: Chassis Tuning – Mystery Area – FKI April […]

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