Apex1.0

What would you say is the default/stock brake bias setup on a (AP1) S2000? Rear, front or neutral? Obviously if you increase traction on either end, say with a staggered tire setup, you need to increase the braking on that end. I assume this is why many people go to front bias pads on a square setup. Does that mean the best bias is neutral (same front rear pads), for a car that has OEM stagger? What about spring/shock rates?

Does anyone run rear biased brakes?

gptoyz

i would say the more proper way to setup brake bias, assuming you are still running the factory brake controller/abs is to measure the heat and maintain that balance.

from my experimentation on a staggered setup; running square pads maintains the best performance and longevity for the system. when I ran a staggered pad setup, xp 10/8 or 12/10 the front brakes were getting over worked. I was replacing front pads at a rate of 3 front to 1 rear; guide pins were getting seized, rotors cracked and ABS was kicking in way too early. Ever since I moved to square pads XP12/12 and then hawk DTC 60/60; my pad life is 1:1 (I will have a little more rear pad then front when it's time to change but it's marginal), my front calipers aren't requiring a rebuild every 6 events and rotors cracking less often.

throwing off the balance either towards the front or rear will decrease your braking limit and increase wear on brake items; so don't do it

Apex1.0

Thanks that helps.

So when it comes to brakes and even suspension there seem to be some generalizations that stick.

Staggered tires = Even brake bias / even spring bias
Square tires = Front brake bias / Front spring bias

klch

From my experience, I was using PFC11 front pads, PFC97 rear pads, 225/255 staggered NT05.
Drove for a whole day with ABS disabled, I consistently able to lock up the rear first. Couldn't manage to lock up the front.
My way of applying the brakes was "linearly" ramp up to ~100%, I didn't attack the pedal 100% from the beginning. Maybe that's why I was locking up the rear only because the weight was shifted to the front well before my braking reached 100%.

So I think the way you apply the brakes affects the lock up characteristics also.

Croc

can't tell about the bias itself - but i can tell for sure from experience that if you put stronger front brakes (bigger caliper) a STRONGER REAR pad is required to get ABS back to normal.
i won't be surprised if same is true for square tire setup.