RedlineMan

Hmmm...

It occurs to me that you guys all use your brakes too much.

KRA993tt

I agree with your premise. I like linear braking but, I don't know that I would say good initial bite means non-linear braking. Some pads are linear but they don't have as much bite. I prefer pads that have more overall bite. But like RedlineMan points out, I no doubt brake too much.

Bull

+1.

himself

I understand your graph to illustrate linear increasing pedal pressure across the braking zone when that is not the case. As you described earlier
With the high initial bite pads, you still squeeze the pedal, get to the "bite" zone, and ramp up the pressure. As I read your graph, the key difference is only timing, i.e., how long you squeeze before ramping. And we're only talking tenths of a second, and probably less either way. In fact, your graph illustrates an almost identical slope for "meat" portion of the braking zone. As I mentioned, for me, the critical factor for me is a steady coefficient of friction under increasing heat.

Also, your graph illustrates that you need 400-500 more units of pressure (with low initial bite pads) to generate the same braking power. That means pushing the pedal harder, and to me this results in less feel (like gripping the steering wheel harder).



As many have stated, I think it comes down to user preference. And probably the thickness of your shoes. Time for new poll? Does shoe thickness help/hurt your podium chances...

-td

Larry Herman

It sure doesn't feel like I have to press all that hard. Maybe my 240 lbs can generate more pedal pressure.

Bill Verburg

Initial bite is just a function of where on the the temp vs friction curve modified by the existing line pressures you happen to be

linearity is a function of the shape of the temp vs friction curve

most manufacturers don't freely publish theses curves, Pagid does



of the pads graphed RS15(grey) will have the best inititial bite, no matter what temp the curve is always higher than any of the others, they wil also erode rotors commensurately faster

RS19 & 29(yellow),of the race pads, will be most linear, the curve is flattest

RS14(black) will be in between those choices

Circuit Motorsports

Which is why it's such a bad term in my opinion especially considering that the bite is very much pressure dependant as well.

At the end of a long straight you might have one level of 'bite' while after couple of hard braking zones and shorter straights you will be at a different level.

Bull

Lightweight!

Bill Verburg

how hard you need to push to develop x amount of line pressure is a function of the flex in the hydraulic and mechanical parts of the system, the mechanical geometry of the pedal/input rod, the boost ratio(there are several different versions) and the slave/master ratio, again several different versions depending on the model.

333pg333

....and cars and driving styles and track surface and conditions and tyres and....
Too many variables, however I think we all know what Larry meant by the poll. It sounds more of a gathering of opinions rather than getting too technical from my read.

Larry Herman

But all those things stay the same when you switch pads in the same car. I have not found any pad where I had to push too hard to generate its maximum braking.

Exactly what I was looking for.

Bill Verburg

I agree w/ you, the problem is comparing one persons sense of the situation w/ anothers from a different car.

sig_a

Orange Pagid predictable while applying near threshold pressure at the beginning of brake zone, then smooth release into corner entry. High initial bite makes sensing threshold point too narrow. Likely a different technique when racing.

Paul 996

Listen, you don't ask me about my brakes and I don't ask you about yours.

mark kibort

+1