The weird sounds xdrilled and slotted make....can we fix it?

LooseChangeRacing · Post by **LooseChangeRacing** » July 17th, 2006, 11:18 pm

Ok, I was fine with a bit if chatter, I knew it was going to happen everything what not...heres what I don't understand...

are the xdrilled and slotted rotors directional....

while driving forward there is a very annoying and loud screeching sound, like metal is rubbing on metal, I thought it might be the tire rubbing the strut...nope it has clearance....

My two options are this...tell me what you think

The rotors are directional and the slots and holes are going in the wrong direction...they are opposite, the sound is coming from the front....the rear there is no sound and the slots are facing the other direction....

Heres a key factor as well...no sound is heard when the car is in reverse...not even from the rear but the rear pads arnt bled correctly, the ebrake doesn't hold....I think the front are perfect, but I believe it has to be the fact that maybe just maybe the rotors are directional?

Oh and Tokico HP and Intrax....damn the car sits low....I bounce off the strut on bouncy turns....

PATDIESEL · Post by **PATDIESEL** » July 17th, 2006, 11:30 pm

The slots on most are directional. The vanes go " \ " this way when looking at the rotor on the car.

LooseChangeRacing · Post by **LooseChangeRacing** » July 17th, 2006, 11:52 pm

This is the front wheel

this is the rear wheel

Both on the passenger side

Additionally, all of Brembo's slotted discs are directional as well, regardless of the vane geometry. The discs should be installed such that the end of the slot nearest the outer edge of the disc contacts the pad first. Please see figure.

V8KOMX3 · Post by **V8KOMX3** » July 18th, 2006, 12:39 am

looks like the front one is on wronge it's not directional.

PATDIESEL · Post by **PATDIESEL** » July 19th, 2006, 12:05 am

Your front one looks right, but I cannot be sure without more pic to see which wheel we are looking at. Anyway, try and reverse the front to see. It is not much more than an hours work...

LooseChangeRacing · Post by **LooseChangeRacing** » July 19th, 2006, 12:42 am

stupid solition.....dust shield was touching the rotor

ryanlindenberg · Post by **ryanlindenberg** » July 19th, 2006, 5:33 pm

Additionally, all of Brembo's slotted discs are directional as well, regardless of the vane geometry. The discs should be installed such that the end of the slot nearest the outer edge of the disc contacts the pad first. Please see figure

According to that, your front rotors are switched around...your back ones are fine.

silentbob343 · Post by **silentbob343** » July 20th, 2006, 1:00 am

LooseChangeRacing wrote:stupid solition.....dust shield was touching the rotor

lol happened to me as well. Damn dust shields are real easy to bend just a bit too much

sk8erdude802 · Post by **sk8erdude802** » July 22nd, 2006, 12:39 pm

Yeah that sound is aweful. I bent mine replacing a ball joint and about droped a load in my pants when I started driving down the road. lol

Steve-O