http://cgi.ebay.com/ebaymotors/ws/eBayI ... 2436036538
What do you guys think of these? They look vented.
Check out these rotors
Moderators: Helpinators, Moderators
Check out these rotors
91 Pearl White Sport Sedan
04 Java Black Pearl Forester XT
2014 Volvo S60 T5
18 KTM 1290 Adventure S
87 Grey GL-10 Sedan (so long old buddy) - donated
97 Toyota 4Runner SR5 - sold
2002 BMW r1150rt-p - sold
2004 BMW r1200ST - sold
2016 BMW r1200RS - sold
04 Java Black Pearl Forester XT
2014 Volvo S60 T5
18 KTM 1290 Adventure S
87 Grey GL-10 Sedan (so long old buddy) - donated
97 Toyota 4Runner SR5 - sold
2002 BMW r1150rt-p - sold
2004 BMW r1200ST - sold
2016 BMW r1200RS - sold
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- Vikash
- Posts: 12517
- Joined: Sun Nov 03, 2002 2:13 am
- Location: USA, OH, Cleveland (sometimes visiting DC though)
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I don't have firsthand experience with cross-drilled rotors, but I've heard of many cross-drilled rotors that developed small cracks when heat cycled strongly. To me it doesn't make sense to get "performance" brakes that you have to baby.
Also, generally, the cross-drilled holes remove a significant portion of pad-to-rotor contact area (I think the number was around 1/7th of the area), which to me seems counterproductive.
If I were to use machined rotors I'd probably pick slotted ones. Slots don't take as much out of the rotors' structural integrity, and maintain more contact area between the rotor and pad. They allow the continual resurfacing of pads, and since the rotor is ventilated anyway I don't think the extra cooling from cross-drilling is worth it. I am interested, however, in DBA's "Kangaroo's Paw" ventilated brake rotor design; supposedly it allows cooling air to go through the rotor more efficiently for better cooling.
Also, generally, the cross-drilled holes remove a significant portion of pad-to-rotor contact area (I think the number was around 1/7th of the area), which to me seems counterproductive.
If I were to use machined rotors I'd probably pick slotted ones. Slots don't take as much out of the rotors' structural integrity, and maintain more contact area between the rotor and pad. They allow the continual resurfacing of pads, and since the rotor is ventilated anyway I don't think the extra cooling from cross-drilling is worth it. I am interested, however, in DBA's "Kangaroo's Paw" ventilated brake rotor design; supposedly it allows cooling air to go through the rotor more efficiently for better cooling.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
Personally.......I'd spend the same money on OEM rotors......I'll bet you money they'll last longer.
I'm not going to get into the whole brake debate......but I will tell you I've run just about every type of rotor, except the uber expensive two piece floating rotors.
I've run cross-drilled, slotted, plain, cyro-treated......out of all those for every day use, and even "canyon" runs plain rotors that have been cryo-treated will be the best. Slotted have their merits for certain reasons, but for normal use, they're not as important.
There's a lot of literature out there...... www.stoptech.com has a lot of info, and there's a lot of info in the brake & suspension forum on nasioc
I'm not going to get into the whole brake debate......but I will tell you I've run just about every type of rotor, except the uber expensive two piece floating rotors.
I've run cross-drilled, slotted, plain, cyro-treated......out of all those for every day use, and even "canyon" runs plain rotors that have been cryo-treated will be the best. Slotted have their merits for certain reasons, but for normal use, they're not as important.
There's a lot of literature out there...... www.stoptech.com has a lot of info, and there's a lot of info in the brake & suspension forum on nasioc
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
I don't think I'll buy them. I'll stick with the oem's. I just wanted to share them with everyone else.
91 Pearl White Sport Sedan
04 Java Black Pearl Forester XT
2014 Volvo S60 T5
18 KTM 1290 Adventure S
87 Grey GL-10 Sedan (so long old buddy) - donated
97 Toyota 4Runner SR5 - sold
2002 BMW r1150rt-p - sold
2004 BMW r1200ST - sold
2016 BMW r1200RS - sold
04 Java Black Pearl Forester XT
2014 Volvo S60 T5
18 KTM 1290 Adventure S
87 Grey GL-10 Sedan (so long old buddy) - donated
97 Toyota 4Runner SR5 - sold
2002 BMW r1150rt-p - sold
2004 BMW r1200ST - sold
2016 BMW r1200RS - sold