Rotors

[Afireinside]

Are drilled and slotted rotors worth it for a daily driver application! I can get some for about $60 each. Or standard rotors for $13 each. What do you guys think?
Thanks

 

[Samurai_Blue]

cheap no name brand drilled tend to crack

 

[mjones73]

The only thing you'll get out of them on a daily driver is looks, they will offer no benefit to stopping.

 

[Afireinside]

cheap no name brand drilled tend to crack

They are quality centric rotors I just get a deal because we are dist. but if there is no point on a daily driver I'll save the coin and buy the $13 ones.
Thanks

 

[Joshmmc]

I doubt it'd make a difference in performance on a DD, not like your rotors get all that hot just driving around town or commuting.

 

[Coney]

people have said that drilled and slotted actually doesnt end up helping due to a loss of surface area. if your not using the brakes hard (aka DD) then you wont really be getting the effect of them being drilled and slotted as they are there to help dissapate heat. If you really want some good rotors i would suggest some nice brembo blanks

 

[Samurai_Blue]

drilled will help get the air into the brakes cooling them down. The slotted ones clean the breaking surface of the pad allowing for a more clean braking surface. they help on the track, my brembo blanks were smoking after a session at buttonwillow

 

[Coney]

drilled will help get the air into the brakes cooling them down. The slotted ones clean the breaking surface of the pad allowing for a more clean braking surface. they help on the track, my brembo blanks were smoking after a session at buttonwillow

right but for a car thats DD blanks would hold up just fine

 

[Samurai_Blue]

depends on the pads. some pads will warp the rotors

 

[Cman46290]

depends on the pads. some pads will warp the rotors

if they get too hot maybe.... but a new pad on a new rotor cant just warp a rotor due to the pad quality... they may wear fast or funny... but unless heated up a lot.. they wont just warp because of the pad...

Another thing ive seen is people not properly installing wheels after a brake job... and when putting the wheel back on... they either dont follow the "Star pattern" installation process.... or they over torque the wheel and warp the rotor before the car is even driven..

and sure enough, customer is back the next week getting the rotors turned...

 

[Samurai_Blue]

depending on the pad it will warp. Hawk hp+ will warp the rotor under daily driving conditions because of the material

 

[Cman46290]

depending on the pad it will warp. Hawk hp+ will warp the rotor under daily driving conditions because of the material

One question...

How?


Not trying to get into a highschool debate match here ... but being an ASE certified mechanic i would like to hear the technical explanation behind this~

I could see if it were some upgraded friction material that made the rotors heat up to excess... that would cause warpage.... but not just regular braking... or the material itself...

 

[mjones73]

depending on the pad it will warp. Hawk hp+ will warp the rotor under daily driving conditions because of the material

They are a high friction pad you wouldn't use for daily driving... I'd assume they risk overheating the rotor because of their compound which could cause warping.

 

[Samurai_Blue]

They are a high friction pad you wouldn't use for daily driving...

hawk hp+ are a street/track hybrid.

 

[Cman46290]

They are a high friction pad you wouldn't use for daily driving... I'd assume they risk overheating the rotor because of their compound which could cause warping.

DING DING.

SO... Heat is the factor... due to friction... not just because of the pad..... the pad just so happens to make a ton of heat because its made for track use... and if yuou dont use that pad with a slotted or drilled rotor... then it will heat up and warp.


But people shouldnt be using those pads on a DD anyways.... on stock rotors.