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-   -   Why doesn't BBK = faster stopping time? (https://www.s2ki.com/forums/s2000-racing-competition-11/why-doesnt-bbk-%3D-faster-stopping-time-396079/)

mikegarrison 06-13-2006 01:51 PM


Originally Posted by krazik,Jun 13 2006, 02:47 PM
uh, brake bias doesn't affect stopping distances either.

Yes it does. A motorcycle or a bicycle (where you control each brake separately) will convince you of that easily enough.

It can't make the car stop better than optimally, but a bad bias can definitely make it stop worse than optimally. Consider if the bias were so bad that only the rear brakes were engaged....

krazik 06-13-2006 01:56 PM

sorry I meant improve stopping distances.

they can certinely screw them up. :)

Orthonormal 06-13-2006 02:14 PM

Ry, some cars come with the brake bias screwed up from the factory. For safety reasons, you know. They lock the front wheels before the rear tires get close to full braking capacity. Early Miatas and MR2s are like that. Sticky tires help, since they increase the weight transfer forward. Then you have more braking grip on the front (so they don't lock up so quick) and less braking grip on the rear (so you don't want as much rear brake).

krazik 06-13-2006 02:28 PM

yeah and most every bbk just includes bigger fronts making it worse.

I don't think anyone is saying BBK's don't work for any car. But on the S they dont improve anything. (except some weight savings).

-Ry

Voodoo_S2K 06-13-2006 02:54 PM

One area that I never see discussed is what about high speed braking. Lets say you are doing 120 mph going into a braking zone on track tires and you slam on the brakes. At that speed, you aren't likely locking up the tires, so it would seem that you could use more braking force, so at those speeds, will a BBK with its larger friction surface help slow the car down more?

krazik 06-13-2006 02:56 PM

Our brakes can lock the wheels up at high speeds too. Pull your abs fuse and go have fun. Tho do it on a track w/o many walls :)

mikegarrison 06-13-2006 02:58 PM


Originally Posted by Voodoo_S2K,Jun 13 2006, 03:54 PM
One area that I never see discussed is what about high speed braking. Lets say you are doing 120 mph going into a braking zone on track tires and you slam on the brakes. At that speed, you aren't likely locking up the tires, so it would seem that you could use more braking force, so at those speeds, will a BBK with its larger friction surface help slow the car down more?

Like I said earlier, maybe. It all depends on the details.

But in general, being faster is about braking less, not more....

Voodoo_S2K 06-13-2006 03:03 PM


Originally Posted by mikegarrison,Jun 13 2006, 03:58 PM
Like I said earlier, maybe. It all depends on the details.

Missed that part.

Voodoo_S2K 06-13-2006 03:04 PM


Originally Posted by krazik,Jun 13 2006, 03:56 PM
Our brakes can lock the wheels up at high speeds too. Pull your abs fuse and go have fun. Tho do it on a track w/o many walls :)

:D

Now where can I find a airport to use like those guys on Top Gear.

Nobody 06-13-2006 03:04 PM


Originally Posted by Voodoo_S2K,Jun 13 2006, 10:54 PM
One area that I never see discussed is what about high speed braking. Lets say you are doing 120 mph going into a braking zone on track tires and you slam on the brakes. At that speed, you aren't likely locking up the tires, so it would seem that you could use more braking force, so at those speeds, will a BBK with its larger friction surface help slow the car down more?

If you aren't likely locking up the tires and could use more braking force all you have to do is mash the pedal a little harder. ;)


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