Performance Rotors
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From: Wisconsin
Performance Rotors
I'm considering purchasing a set of slotted or drilled rotors for my near brake job. After some research, I'm leaning towards the slotted rotors instead of the crossed drilled (for durability). So I'm considering the Powerslot/Hawk pad combo. Is this a good choice? And is it worth the extra money to get the cryo frozen Powerslots?
Also, when it comes time for the next brake job, can the Powerslots be resurfaced at all? Would they need to be resurfaced as long as the pads were replaced soon enough before they started scoring the rotors?
BTW, this would be for the front brakes on a '96 F250 4x4 Powerstroke
Thanks
Also, when it comes time for the next brake job, can the Powerslots be resurfaced at all? Would they need to be resurfaced as long as the pads were replaced soon enough before they started scoring the rotors?
BTW, this would be for the front brakes on a '96 F250 4x4 Powerstroke
Thanks
Last edited by 73strokin; Jan 21, 2007 at 08:58 AM. Reason: spelling
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The slotted would be better than the drilled.
The cryo rotors last about 2 to 3 times as long as non cryo treated rotors.
It is not recommended to resurface the power slot rotors. If you haven't done so already, take a look at the brake products we offer.
The cryo rotors last about 2 to 3 times as long as non cryo treated rotors.
It is not recommended to resurface the power slot rotors. If you haven't done so already, take a look at the brake products we offer.
Cargo Master
Joined: Dec 2006
Posts: 3,489
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From: Central NY
I put Hawk LTS pads and Brembo OEM replacement rotors on all four...stops better than my cars!!!
Got them from Tirerack...they had the best prices, even with the $80 in S/H.
If they sold Cooper Tires, they'd get A LOT more business from me considering i have 6 sets of coopers right now.
Got them from Tirerack...they had the best prices, even with the $80 in S/H.
If they sold Cooper Tires, they'd get A LOT more business from me considering i have 6 sets of coopers right now.
Posting Guru
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From: central TX
Putting the Brembo rotors on my Aunt's/my truck at work soon ('97 F250 2wd PSD). Haven't decided on the pads yet, will most likely get them from Tirerack as they aren't available through my other source anymore. Never used the cryo'd rotors, never had a need to after using the Brembos. They have completely cured warping problems on several vehicles and seem to last longer to boot.
I would expect very limited benefits with a slotted rotor on the street.
I would expect very limited benefits with a slotted rotor on the street.
Cargo Master
Joined: Dec 2006
Posts: 3,489
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From: Central NY
Originally Posted by tdister
Putting the Brembo rotors on my Aunt's/my truck at work soon ('97 F250 2wd PSD). Haven't decided on the pads yet, will most likely get them from Tirerack as they aren't available through my other source anymore. Never used the cryo'd rotors, never had a need to after using the Brembos. They have completely cured warping problems on several vehicles and seem to last longer to boot.
I would expect very limited benefits with a slotted rotor on the street.
I would expect very limited benefits with a slotted rotor on the street.
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From: central TX
As far as resurfacing the Powerslots, I don't know. I know they can't be turned, but I usually scuff rotors if putting on just new pads. The P'slots have a cadmium (I think) coating on them of some sort, should they not be scuffed up because of that? Does the coating get eaten off by the time it's up for a second set of pads?
I've got a kit from 3M that puts a new finish on rotors. I think it's intended for after turning but I haven't had a rotor turned in years (the only rotors I've had turned were to get rid of warpage on OE rotors in warranty, never helps very long). I either just scuff them or replace.
I've got a kit from 3M that puts a new finish on rotors. I think it's intended for after turning but I haven't had a rotor turned in years (the only rotors I've had turned were to get rid of warpage on OE rotors in warranty, never helps very long). I either just scuff them or replace.
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It is fine to scuff up powerslots with some garnet paper. Turning, as you know, is the only thing not recommended.
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Lead Driver
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From: Albuquerque
Can you explain why not to turn the Power Slot rotors? Are the different than other slotted rotors?
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Turning rotors is a last resort, only if excessive runout is measured.
Carmakers do not recommend turning them when replacing pads.
And some rotor MFRs do not recommend turning their rotors at all.
If runout is not excessive there's no need to turn them.
I've turned one set of rotors in my lifetime, the factory rotors my Expy came with. And they quickly warped almost immediately after I did.
Just scuff the surface slightly as tdister notes, to remove some of the old transfer layer.
Then make sure you bed the pads to establish a new transfer layer.
Here's some good info:
http://www.hawkperformance.com/performance/hps.php#
http://www.zeckhausen.com/bedding_in_brakes.htm
http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85
http://www.raceshopper.com/tech.shtml
Carmakers do not recommend turning them when replacing pads.
And some rotor MFRs do not recommend turning their rotors at all.
If runout is not excessive there's no need to turn them.
I've turned one set of rotors in my lifetime, the factory rotors my Expy came with. And they quickly warped almost immediately after I did.
Just scuff the surface slightly as tdister notes, to remove some of the old transfer layer.
Then make sure you bed the pads to establish a new transfer layer.
Here's some good info:
http://www.hawkperformance.com/performance/hps.php#
http://www.zeckhausen.com/bedding_in_brakes.htm
http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85
http://www.raceshopper.com/tech.shtml
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