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

Posted: July 17th, 2006, 11:18 pm
by LooseChangeRacing
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....

Posted: July 17th, 2006, 11:30 pm
by PATDIESEL
The slots on most are directional. The vanes go " \ " this way when looking at the rotor on the car.

Posted: July 17th, 2006, 11:52 pm
by LooseChangeRacing
This is the front wheel

Image

this is the rear wheel

Image

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.

Posted: July 18th, 2006, 12:39 am
by V8KOMX3
looks like the front one is on wronge it's not directional.

Posted: July 19th, 2006, 12:05 am
by PATDIESEL
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...

Posted: July 19th, 2006, 12:42 am
by LooseChangeRacing
stupid solition.....dust shield was touching the rotor

Posted: July 19th, 2006, 5:33 pm
by ryanlindenberg
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.

Posted: July 20th, 2006, 1:00 am
by silentbob343
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

Posted: July 22nd, 2006, 12:39 pm
by sk8erdude802
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