CITATION(Jonathan)
il m'offais aussi l'option des disque cross-drill a l'avant et arriere
je m'en sortais autour de 1200$ les 4 roues avec des disque cross-drill et des bon pads
lisez ceci , et voila ce que j en pense des frein cross drilled ou slotted :
Disks
I recomend solid blanks for Solo1 and regional racing.The slots serve as a cosmetic feature only.Slotted rotors increase your stopping distances because of the reduced surface area.
Think of the rotor as a tire.If you have grooves in the tire(TREAD) you reduce the surface area so they don't grip as well as a slick (No Tread).Quality blank rotors are best for competition.
People are going to respond to my FACTS, not my personal opinions about this matter by saying that slotts de- gas and or de- glase the pads.
Modern racing brake pads are made with non-organic materials that do not gas like the old days.Prior 1985.
In the old days brake pads were made with Formaldehyde, Cashew nut shell oil, Barytes, Lime, Zinc, Copper,Brass, lead,gum rubber,carbon black,graphite,Sulphur and Asbestos.
When this toxic mess was heated and pressed under extreme pressure(100 plus tonnes) in the presence of air ,only the outside skin of the thick brake pad would polymerize.The polymers in the compound have not cross linked fully.This is called a Unsaturated state that has free linkages which can join with other atoms and molecules to form a different product.To combat this problem in racing, the engineers created the slotted rotor to peel away the outer layer of the pad.The pads new layer would then Polymerize under the heat of the rotor and pressure of the caliper to keep the consistancy of the brake feel uniform.(NO FADE)
The modern day Racing brake pads are designed for total polymer saturation where the polymers cross-linking is fully complete after it leaves the press and you have a sound product.
No need for the slotts.
Re-cap
1985 and older brake pads- Unsaturated polymers which still has free linkages which can join with other atoms and molecules to form a different product than you intended.
Modern day racing pads-Are refered as Saturated polymers where the cross linking of atoms and molecules are totally complete.
Hope this answered all the questions about slotted rotors.
William Dickson
CEO- President
Williams Racing