Anyone know how to safely disengage the ABS for track purposes? I'm beyond its usefulness.
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ABS Disengagement
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Disconnect the white ABS relay above the driver's front fender. The plastic will be a little brittle, but it pulls apart with a little work.
Easy to reconnect if you want to get ABS back.
-CharlieSwing wild, brake later, don't apologize.'89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.FYYFF
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Re: ABS Disengagement
Originally posted by modifiede30Anyone know how to safely disengage the ABS for track purposes? I'm beyond its usefulness.
Even under my heaviest of track braking, I very seldomly actuate ABS.
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ModifiedE30, please elaborate. Your ABS is generally NOT working properly? Your track driving style is such that you no longer find it to be an advantage? What do you think you will gain by disabling it?
Even under my heaviest of track braking, I very seldomly actuate ABS.Driving is the only way to go faster....
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Originally posted by UNHCLLOriginally posted by modifiede30My experience with ABS in skid pad sessions have proven that its less effective than threshold braking in almost any situation.
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Originally posted by e9nineOriginally posted by UNHCLLOriginally posted by modifiede30My experience with ABS in skid pad sessions have proven that its less effective than threshold braking in almost any situation.
To break it down to the parts of braking...(Ultra simplified)
Threshold Braking is the MAXIMUM pressure that can be applied to the brakes before lock-up occurs.
Once ABS kicks in, you have passed this optimal level, and the brakes are "cycling"
The cycling is very quick on newer cars, but for that split second, the brakes are still releasing pressure on the rotors and allowing more "slip"
This is overly exagerated on the E30 as it is an antiquiated system. The pause while pressure is released is long. Threshold will always stop you faster than full ABS Lock-up braking. Stressing this point is the essence of our Saftey Schools when teaching Panic Stops. Throw into the equation, turning, weight transfer, and the speed the mind must process that.... students can very quickly fall into the "Stomp the pedal and stand on it" mentality.
I personally cant speak for newer systems with independent brake monitors and split second bias control.
Overly computerized systems will *USUALLY* beat a non computerized system. (New 5er vs. E30) But comparisions like that arent valid given the changes over time.Below the radar...
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This is turning into a great thread.
Originally posted by UNHCLL....students can very quickly fall into the "Stomp the pedal and stand on it" mentality..
Im of the opinion, that the more you can do without drivers assistance (ABS, DSC or whatever) the better a driver you will become and also develop a much better and consistent feel for a cars limits. Performance driving is always about feedback and feel. Drivers aids take that away.
Out of all the instructors that I have ever had, ONLY 1 has ever suggested that I should brake using full ABS. I tried it, but my driving style made it hard.
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Originally posted by TIATOYep, I can see that hapenning especially with novices. Then again Ive seen experienced drivers do that. One of my driving friends not only uses ABS all the time but also DSC. Says it makes him faster??
Its faster to let the back end "slip/slide" a TINY amount through a corner, and DSC tries to prevent that as much as possible by cutting power. This clearly inhibits track times and exit speed.
Originally posted by TIATOIm of the opinion, that the more you can do without drivers assistance (ABS, DSC or whatever) the better a driver you will become and also develop a much better and consistent feel for a cars limits. Performance driving is always about feedback and feel. Drivers aids take that away.
Originally posted by TIATOOut of all the instructors that I have ever had, ONLY 1 has ever suggested that I should brake using full ABS. I tried it, but my driving style made it hard.
Personally I'll stick to the non automated system setup. One of the first things I do when I drive my mothers 325i, is switch off the DSC, not because I beat on it and slide like crazy, but the feeling of hving power cut while I'm trying to accelerate due to a small amount of wheelspin is VERY unerving.Below the radar...
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