How fast can you react to the stop sign? - Page 3 - Alfa Romeo Bulletin Board & Forums

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post #31 of 32 (permalink) Old 03-09-2017, 02:50 PM
Del
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Join Date: May 2005
Location: seattle
Posts: 11,871
"There are still those who think brake pedal pressure can or should be eased back as soon as the ABS can be felt to be working. Nothing could be further from the truth. When ABS first releases line pressure that is only to the first wheel to lock. Brake pressure should continue to be applied at maximum. ABS only maximizes braking force when all four wheels are experiencing brake line pressure relief. To benefit from ABS one applies maximum possible brake line pressure and lets the ABS control wheel lock. Anything short of maximum brake line pressure is not utilizing the ABS properly"

My point exactly. Even some authorities don't seem to realize that, they saying to feather the brakes when stopping in slippery emergency circumstances. That's why I say that while theoretically being a safety addition to the brake system, in real life for many drivers, it is neither understood or utilized when needed, it not affecting/altering the brakes as it should, thus not a used asset in that respect.

I've used it, and it provides steering while braking heavily on ice when needed. No real loss of steering control, and reasonable stopping power, although the thumping/pulsing of the brakes can be disconcerting. the biggest attribute is the steering ability it provides.

Del

Seattle

89 Milano (wife's daily driver since 1989, Shankle Sport)
91 164S (my daily driver since 1994)
94 164LS (~Q) (trip Alfa since 2000)
72 Morgan 27 (water time since 1976)

previously owned since 1964:

62 Morris MiniMinor 850, 67 Austin 1275 Cooper S (Downton 3/4 race), 64 Giulia Sprint GT (1st red one made), 72 Fiat 128 Sedan, 75 Alfetta Sedan, 78 Alfetta Sedan, 78 GTV, 81 GTV6, 86 GTV6

Last edited by Del; 03-09-2017 at 04:12 PM.
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post #32 of 32 (permalink) Old 03-09-2017, 09:14 PM
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Join Date: Dec 2006
Location: Irvine California
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I do mean the anti-lock ABS system that cars from the 90's on have as standard equipment. My experience is it optimizes stopping distance, and even a few feet might save my *** - and my Alfa's nose, and a lot of hassle - someday.

I'm all in favor of staying on the ball, and probably fairly good at modulating the brakes, but I've had to make a few near-panic stops in other cars with ABS and there's no question it's a major safety advantage.

I consciously purchased a Spider without an airbag 'cos I love the twin pods and wooden steering wheel. I installed an inconspicuous center brake light to reduce my chances of getting rear-ended, and I'd jump at the chance to add ABS to my '84 Spider.

David O'D
Irvine CA
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