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The Terminator
Suspension Modifications
Big Brakes - Who's done 'em.
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<blockquote data-quote="moridin2004" data-source="post: 3956907" data-attributes="member: 11694"><p>The pads had quite a lot of pad left when they came off. Some taper wear, but not bad. My point about the dust boots is purely from a street car standpoint. How often do you change your pads on the hill climb car? I'm sure its far more often than my Cobra as I'm rolling over 4 years and 30,000 miles with one pad change. I'm sure that interval will be even greater with more pad area and rotor. I don't get in there that much to clean it up, as the car isn't going to see the track all that much for quite some time. Same thing with my Honda. Maybe its a Dynalite thing, but it happened to me, so I'm a bit biased for street car use. I'm switching to different Wilwood calipers anyway and I'll probably move the Dynalites to the rear. </p><p></p><p>As for the ABS. No, the ABS does not moniter pressure as far as I know, but it is programmed a certain way for an expected pressure upon braking. In a four channel system, it compares the speed of the four wheels to each other and calculates if one is locked/locking up if its outside the range of accepted deceleration rates. If it is, the unit cycles, releasing the caliper (as the unit has now taken control of hydraulic pressure from your foot) until the tire is rotating at an accepted speed. Then, the unit reapplies pressure back to the caliper where the tire locked up. If the braking system has changed so that pressures differ widely from the original system that the ABS unit was programmed for, the unit will output the wrong amount when reapplying pressure to that caliper. All the sudden the wheel is locked up again when it was expected not to and the unit has to cycle again. Imagine everytime the unit goes to reapply pressure again, the wheel locks up. That would cause some pretty long stopping distances. Even a significant change in pad material could cause this on stock calipers, because the coefficient of friction is so much greater. I'm 99% positive that the programming for the stock ABS device is far more complicated than I attempted to explain.</p></blockquote><p></p>
[QUOTE="moridin2004, post: 3956907, member: 11694"] The pads had quite a lot of pad left when they came off. Some taper wear, but not bad. My point about the dust boots is purely from a street car standpoint. How often do you change your pads on the hill climb car? I'm sure its far more often than my Cobra as I'm rolling over 4 years and 30,000 miles with one pad change. I'm sure that interval will be even greater with more pad area and rotor. I don't get in there that much to clean it up, as the car isn't going to see the track all that much for quite some time. Same thing with my Honda. Maybe its a Dynalite thing, but it happened to me, so I'm a bit biased for street car use. I'm switching to different Wilwood calipers anyway and I'll probably move the Dynalites to the rear. As for the ABS. No, the ABS does not moniter pressure as far as I know, but it is programmed a certain way for an expected pressure upon braking. In a four channel system, it compares the speed of the four wheels to each other and calculates if one is locked/locking up if its outside the range of accepted deceleration rates. If it is, the unit cycles, releasing the caliper (as the unit has now taken control of hydraulic pressure from your foot) until the tire is rotating at an accepted speed. Then, the unit reapplies pressure back to the caliper where the tire locked up. If the braking system has changed so that pressures differ widely from the original system that the ABS unit was programmed for, the unit will output the wrong amount when reapplying pressure to that caliper. All the sudden the wheel is locked up again when it was expected not to and the unit has to cycle again. Imagine everytime the unit goes to reapply pressure again, the wheel locks up. That would cause some pretty long stopping distances. Even a significant change in pad material could cause this on stock calipers, because the coefficient of friction is so much greater. I'm 99% positive that the programming for the stock ABS device is far more complicated than I attempted to explain. [/QUOTE]
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