oldbmwfan
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- Oct 19, 2016
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- 2017 GT350R
HPS suck. Honestly I don't know why anyone runs them on track, ever. Same with the HP+, which are a very old compound. HP+ do have fantastic cold bite, so they are a great autocross pad. If your car weighs 2k lbs and makes <200 hp, they probably do fine on track, too.
The reason our stock pads don't last that long is because they are thin. To handle continuous lapping without overheating, the rotors are massively thick and take up most of the space in the caliper. I was very surprised when I saw how thin the pads are given the caliper size, but I guess in part they make up for limited material depth with a huge swept area.
The other characteristic to consider is rotor wear. Not sure what others are experiencing, but after going through a few sets of stock pads my rotors still look excellent. If a more aggressive pad also wears the rotors faster, that increases the effective cost even more. I'm guessing one would need an R7 or stickier tire to really take advantage of those changes.
The reason our stock pads don't last that long is because they are thin. To handle continuous lapping without overheating, the rotors are massively thick and take up most of the space in the caliper. I was very surprised when I saw how thin the pads are given the caliper size, but I guess in part they make up for limited material depth with a huge swept area.
The other characteristic to consider is rotor wear. Not sure what others are experiencing, but after going through a few sets of stock pads my rotors still look excellent. If a more aggressive pad also wears the rotors faster, that increases the effective cost even more. I'm guessing one would need an R7 or stickier tire to really take advantage of those changes.
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