Disher04

from slotted rotors? I'm running Powerslot rotors front (slotted OEM rear), Hawk pads and SS brake lines, and the brakes have never felt right. It seems to be worse when its wet, but under harder braking I'll hear a deep whirring sound and feel a subtle vibration throughout the car as I initially stomp on the brakes. It will fade a little as it slows down. If its wet out and I've just started driving (after startup) the sound and vibration is worse and it feels like I have to push the pedal farther and harder to get the same amount of braking effect. Kinda scary. It also seems to want to pull to the right under harder braking in these situations, and the right rotors are definitely warmer to the touch than the left. What could be causing this? Sometimes when coming to a stop I'll hear for a few seconds a pump running and feel a very slight pulsation through the pedal. Also, if I'm driving slowly and hit a bump occasionally I'll hear this same sound. Could this be due to the ABS module?
I've looked under the car and everything looks fine and there is no unusual wear on the rotors that I can see.

Fast Euro

Car has always sucked when braking in wet conditions regardless, but whirring and vibration are def. worse after slotted rotors and HPS pads.

daves4izzle::ASP 3-

likely tire noise from the slight wobble due to imbalance.

Disher04

Doesn't explain how moisture affects them.

Fast Euro

vibration every time I hit the brakes the first 1 or 2 times when its very wet out.

Disher04

Yeah, maybe its the pads? Anyone else experience this with Hawk HPS pads and slotted rotors?

sphere

Same issue AFTER 5k and car sitting for 10 months. High spots on rotors.

MCH 2.7t

I re-bed my Hawk HPS pads every couple of months. Its getting to be a real PIA. Pagid Blues are on the shelf and going in soon

berTTos@pjK04

mine do this until they heat up. ECS 2-piece slotted/drilled w/ stock calipers

Dubs

As for the brake fade in wet, i dont know. Initial bit in wet with a slotted rotor should be better but i the fade is odd.