Rotora Drilled Slotted or just Slotted Rotors?
#1
Three Wheelin'
Thread Starter
Rotora Drilled Slotted or just Slotted Rotors?
I am about to order my new Rotora rotors and pads but still thinking if i should go with just slotted rotors or drilled and slotted. would there be more noise from the drilled ones while cruising on the highway... ? and do they wear the pads out quicker?
I like the looks of drilled and slotted better and it would be just 55 dollars more for the setup of drilled and slotted.
whats your take on it ?
I like the looks of drilled and slotted better and it would be just 55 dollars more for the setup of drilled and slotted.
whats your take on it ?
#3
07 TL-S
i have the rotora drilled and slotted. They indeed look nice. My only beef with them is that sometimes, not all the time, when starting my car after its been off a while (a few hours) the brakes squeal the first couple of times i hit the brakes. so sometimes i will just hit the brakes a couple times when coming out my driveway to make it go away. i suppose rust builds up easier on these?
#4
more surface area with each hole for rust to gather on overnight- a few stops takes care or it
Yes drilled will make more wind noise driving and take a microscopic bit more pad off with each use
But do you care? If you get 25kmiles from pads is that good enough -considering how well it stops?
I prefer slotted only for normal use--most drivers will never need even the extra venting for hot pad outgassing to escape thru the slots, but its good to have
drilled is good if you autocross race, live where it rains heavily and water soaks the brakes while driving, or commute down a mountain or volcano where repeated hard use of brakes will occur and quick recovery is needed
Then the holes do provide extra cooling -a good thing in those conditions
If you want bling- buy it !!!
and accept what goes with high performance parts..fun!!! and parts wearout
Yes drilled will make more wind noise driving and take a microscopic bit more pad off with each use
But do you care? If you get 25kmiles from pads is that good enough -considering how well it stops?
I prefer slotted only for normal use--most drivers will never need even the extra venting for hot pad outgassing to escape thru the slots, but its good to have
drilled is good if you autocross race, live where it rains heavily and water soaks the brakes while driving, or commute down a mountain or volcano where repeated hard use of brakes will occur and quick recovery is needed
Then the holes do provide extra cooling -a good thing in those conditions
If you want bling- buy it !!!
and accept what goes with high performance parts..fun!!! and parts wearout
#7
AZ Track Whore
iTrader: (4)
If all you want to do is chew up your pads faster and have weaker rotors after time go ahead and get the drilled ones.
Look at any quality race setup and 9/10 times its slotted only.
Nuff said
And actually slotted and "dimpled" is a great way to go but not many places are doing it yet.
Look at any quality race setup and 9/10 times its slotted only.
Nuff said
And actually slotted and "dimpled" is a great way to go but not many places are doing it yet.
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#14
אני עומד עם ישראל
go with what you prefer. Personally I have slotted rotors on my TL.
#15
Three Wheelin'
Thread Starter
I went with the slotted drilled setup even before ive seen that picture, now im just happy about it but then again wish i had a bbk cant have it all i guess.
#17
Team Owner
If all you want to do is chew up your pads faster and have weaker rotors after time go ahead and get the drilled ones.
Look at any quality race setup and 9/10 times its slotted only.
Nuff said
And actually slotted and "dimpled" is a great way to go but not many places are doing it yet.
Look at any quality race setup and 9/10 times its slotted only.
Nuff said
And actually slotted and "dimpled" is a great way to go but not many places are doing it yet.
I've done my own research and even paid for the white paper on this subject.
Drilled does not eat up rotors any faster under normal and semi-hot conditions. Only once the brakes are race track hot do the holes make the pads wear quicker.
Drilling does not make the rotor weaker when done right. Rotora is a quality rotor and there will be no issues.
Drilling does help the rotor to run cooler.
Drilling does stop pad glazing even better than slots.
Drilling lightens rotors.
Drilling helps a lot in rainy conditions.
Drilling has a much, much more consistent pedal pressure and feel from cold to very hot.
Drilling does not make noise unless the brakes are applied. Mine are silent under normal around town braking but under hard braking it does make a humming sound.
So if you're buying cheap rotors, stick with slotted. If you're buying quality rotors, go with the drilled. You may not need them but you can never have too much brake.
One of the best things you can do once you're in there, especially if you have drilled rotors is to remove the sheet metal backing plate. This dropped my front rotor temps by over 100 degrees.
When you get into a full race setup you start seeing more blank rotors but that's largely due to the exotic materials used.
#21
Former Whiner
Plus it looks 10x better
#22
May or may not apply to TLs but I see it on other cars with $2-3k Porsche brakes.
#23
Rice and Crackers...
#24
Team Owner
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#26
Former Sponsor
iTrader: (1)
Typically, we have found that the two rotors function very similarly. It really comes down to aesthetics. The drilled and slotted have a nicer appearance.
Of course it's important you choose a company that drills the rotors properly. If you choose a cheap company who doesn't do the drilling properly or a company that uses cheap material then you will have issues.
Of course it's important you choose a company that drills the rotors properly. If you choose a cheap company who doesn't do the drilling properly or a company that uses cheap material then you will have issues.
#27
Team Owner
Typically, we have found that the two rotors function very similarly. It really comes down to aesthetics. The drilled and slotted have a nicer appearance.
Of course it's important you choose a company that drills the rotors properly. If you choose a cheap company who doesn't do the drilling properly or a company that uses cheap material then you will have issues.
Of course it's important you choose a company that drills the rotors properly. If you choose a cheap company who doesn't do the drilling properly or a company that uses cheap material then you will have issues.
#28
Former Sponsor
iTrader: (1)
I've got the white paper researched by GM on the effects of drilling. They offer more than aesthetics. I was against them before. I figured the loss of mass would override any cooling benefits of the extra surface area but I was wrong. As long as they're done right, preferably cast with the rotor reliability will be fine. One interesting thing the paper said is that ALL crossdrilled rotors will one day develop cracks at the holes. The good ones just happen to wear out long before the cracks develop.
Also as you mentioned the holes will eventually develop very minute cracks but on the better rotors it usually doesn't occur until the end of the life of the rotor.
#29
Team Owner
I totally agree. The advantages of drilling, other than the weight and wet weather don't come into play until you're really pressing them to the limit.
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