Is it normal for ABS on 01' to allow any lock-up at all?

[jwwiii]

Is it normal for ABS on 01\' to allow any lock-up at all?

Ok folks, this isn't meant to be a dumb question. Let me explain... .

I have a new 01" RT with 1,300 miles on it. I am following all break in rules and the car is great! I previously had a 98' RT which obviously did not have ABS. The Viper stops like it's tied to a tree even without ABS. My other cars have ABS and I am used to how it flutters and barely allows a chirp when you hammer down.

OK. I decided to try out the brakes and really hit em' hard for a second to see how they felt on the Viper. I was going in a straight line about 40mph and tested it out. The tires chirped loudly (obviously locked for a second) and I backed off so I wouldn't flat-spot my new tires. The Viper braked well, but I never did feel any flutter or ABS-like sensation. Is this normal? No ABS dash light is on.

To wrap up my description, I did not hold down on the brakes after I felt the lock-up and heard the loud chirps. QUESTION: are the ABS on the Viper set up so that it doesn't kick on as quickly as you might expect? Obviously the car has huge tires and pretty darn good stopping power without ABS. Should I go try it out again to feel the "flutter", or does it not kick on until the car has locked-up longer. I need your advice, as I don't want to abuse my tires. No distress light on either.

Do I have an ABS problem? Should I hammer the brakes longer?

Thanks folks, I appreciate your comments!

Jim

 

[treynor]

Re: Is it normal for ABS on 01\' to allow any lock-up at all?

On my '01 RT, the tires go "chirpitty chirpitty chirp" as I come to a stop. I can't feel any pulsation through the brake pedal, but I can feel the wheels locking & unlocking, especially in the front. Try going 15 mph and hammering the brake pedal -- you'll get some ABS action, but won't hurt your tires in the slightest.

 

[dtittle]

Re: Is it normal for ABS on 01\' to allow any lock-up at all?

Hey jwwiii,

What you're describing sounds normal. The ABS system on the car has a sensor and a gear style position sensor and as a result the tires will lock up slightly prior to the ABS releasing pressure. If it's anything more than Chirpity, Chirp, Chirp, Chirp have the brakes checked.

On another note when your doing your testing you should make sure everything is warmed up properly. Doing bonzai stops is kind of unfriendly on cold parts.

Regards,

 

[jwwiii]

Re: Is it normal for ABS on 01\' to allow any lock-up at all?

Dear fellow owners;

Sorry if I false posted before. I want to say "thank you" as always on your advice on ABS brakes. I have not fully tested them by staying on them long enough to flutter. The "chirping" made me wary enough. and I figured it was calibrated to "kick-on" later than normal because of the performance nature of the beast.

Please give me more "real tests" to check the system out. It seems that some of you say I was not going fast enough. Others say I need to go slower. Which is the real test to determine if the ABS is working correctly? I appreciate your responses.

Jim

 

[treynor]

Re: Is it normal for ABS on 01\' to allow any lock-up at all?

This just in -- a police recreation of the little known, and less understood, "Panic Bonsai Stop" technique:

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I must have had too much coffee this morning...