Jeff's last comment is about the best I have seen on this topic, it really
depends on the car. When I was involved in touring car racing in Australia
we had our ABS disabled (and removed for weight) one of our rival teams
however kept their ABS and used it very effectively in late braking
especially while turning in. Once they had a nose up on the car they were
passing the other car was basically screwed (us in many cases). The whole
thing this is that they were then slower on their exit but it didn't matter
because the passed car was essentially blocked.
Remember with AutoX your fastest way around is always going to be the
smoothest and best planned/executed entries and exits (usually not locking
wheels in contact with the ground). This has always been braking in a
straight line and powering through. In that case I would have think unless
you are already in trouble, comming on or off ABS would be a secondary
consideration as it will only make a difference once you are below racing
speed anyway.
Paul- My 2 cents worth.
-----Original Message-----
From: owner-ba-autox@autox.team.net
[mailto:owner-ba-autox@autox.team.net]On Behalf Of jeff@winchell.org
Sent: Tuesday, March 25, 2003 9:33 AM
To: ba-autox@autox.team.net
Subject: Re: Braking performance and ABS
> - you can brake to the traction limit of the outside wheel, which will
> cause the inside wheel to lock/enter ABS, or you can brake to the traction
> limit of the inside wheel, which will cause the car to slow down less
> rapidly. *
> * I am ignoring the rear axle for the purposes of this discussion. My
> experience is that in any modern stock car, the brake bias is adjusted so
> far towards the front wheels that it is impossible to lock the rear wheels
> during normal maneuvering even with race tires installed. There are ways
> to compensate for this, but its really a separate topic.
Last year, my ESP Mustang had no ABS and it sometimes locked up in the
rear, sometimes in the front. This year, I put in the ABS from a 98 Mustang
Cobra and the ABS has independent adjustments for front right and left
wheels, with the 2 rear wheels on a third adjustment channel, so I get
dynamic brake biasing for free. I wonder if ABS systems and vehicle/course
dynamics are so varied that it is nearly impossible to say much useful
about ABS generically ... that specific vehicle, driver, and course testing
is necessary.
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