That's what he originally said, wasn't it ? Or is the Christmas spirit
getting to me ? :-)
IMHO rather than neutral handling I'd always aim for slight understeer, with
slight power-on/off oversteer; in practice that seems to allow greater
speeds to be carried through corners - perhaps down to my inept driving but
that's also what my lotus elise racing friends aim for, and they can achieve
fairly forgiving, neutral setup on those things.
Neil
> -----Original Message-----
> From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
> Behalf Of Navarrette, Vance
> Sent: Monday, December 23, 2002 04:12
> To: 6pack@autox.team.net
> Subject: FW: over-steer, under-steer, neutral steer...thoughts,
> theories, comments
>
>
> Actually, you have it exactly backwards;
>
> Stiffen the REAR sway bar to reduce under steer,
> stiffen the front bar to reduce oversteer. It is exactly
> the opposite of what intuition would tell you.
> Car makers deliberately set up there cars to
> under steer at the limit, so that little Johnny doesn't
> spin the family car into a bridge abuttment while driving.
> We all know that the lawsuits would have no end in a
> situation like this.
> The correct way to set up a car to handle, all other
> things being equal, is for neutral handling which extracts
> the maximum amount of work from all four tires while cornering.
> The correct way to set up your suspension is to have approximately
> half your roll stiffness from the springs, and half from your
> sway bars. If your sway bars are too stiff, you can actually
> increase your ultimate cornering capability by reducing the
> stiffness to more closely match your springs. The trade off is
> more body roll when you corner, but the car will hang on harder
> when the springs and bars are matched.
>
>
> Cheers,
>
> Vance
>
> ------------------------------
> 1974 Mimosa Yellow Triumph TR6
> Cogito Ergo Zoom
> (I think, therefore I go fast)
>
>
>
> -----Original Message-----
> From: R. Ashford Little II [mailto:ralittle2@mindspring.com]
> Sent: Sunday, December 22, 2002 9:14 PM
> To: 6-Pack
> Subject: over-steer, under-steer, neutral steer...thoughts, theories,
> comments
>
>
> Without reading the many emails that follow (I'm just catching up on
> them), I would say this. So here's my answer, initially the TR6 will
> under-steer, but that will change to over-steer.
>
> "I" am far from a suspension expert. But, I would say that I would
> stiffen up the front roll bar to assist in under-steer and add a rear
> sway bar to help with over-steer.
>
> These bars must or should be from a matched family (planned out), for
> them to work properly. Well, that's about it as far as my knowledge
> goes, since I need to take myself down to Road Atlanta for some lessons
> anyway.
>
> So, those are my answers without cheating to see what others have said.
> Unless I'm wrong, and then my second email will simply mean that I had a
> bolt of lightening thought.
>
> R. Ashford Little II
> www.geocities.com/ralittle2
|