DBA in the USA
VIP Member
iTrader: (6)
Joined: Mar 2003
Posts: 1,314
From: Bend, Oregon
Car Info: E28M5, RAM Powerwagon, Motos
Hey Mark and Steve,
I have the 4000 series rotors on the front of my car. I just installed a Wilwood/perrin brake kit. The rear 2pot kit comes with H6 rotors. They are not slotted and they are ugly. They also make a howling squeal due pad surface constraints. I lost the rear 600 rotors when putting the kit on. Any plans to make a upgrade for the H6 rotors?
-Thanks in advance.
-Kevin
I have the 4000 series rotors on the front of my car. I just installed a Wilwood/perrin brake kit. The rear 2pot kit comes with H6 rotors. They are not slotted and they are ugly. They also make a howling squeal due pad surface constraints. I lost the rear 600 rotors when putting the kit on. Any plans to make a upgrade for the H6 rotors?
-Thanks in advance.
-Kevin
Registered User
Joined: May 2003
Posts: 390
From: Rochester, NY
How about having it in New York or New England, I'm tired of the west coast having everything. 
BTW, I plan on upgrading my brakes in the near future, and was wondering if the 650 series rotors will fit under the stock calipers of a '00 Impreza L.
BTW, I plan on upgrading my brakes in the near future, and was wondering if the 650 series rotors will fit under the stock calipers of a '00 Impreza L.
Registered User
iTrader: (5)
Joined: Dec 2002
Posts: 1,839
From: Folsom, CA
Car Info: 02 WRX/05 Legacy
Originally posted by mark_at_dba
The 4000 series are designed and manufactured to help eliminate judder, fade and warpage. They run approx 10-15% cooler than more traditional rotors, mainly due to our patent Kangaroo paw vent design.
Cheers,
Mark.
The 4000 series are designed and manufactured to help eliminate judder, fade and warpage. They run approx 10-15% cooler than more traditional rotors, mainly due to our patent Kangaroo paw vent design.
Cheers,
Mark.
Also, what's the proper way to turn the regular 6xx part drilled and slotted rotors? Anything particular I need to look out for at the shop?
Guest
Posts: n/a
DBA 4657 is thermally treated, and does have the Kangaroo Paw vent design.
To turn the rotors, have the lathe set at a feed and speed rate, to minimise the cutting tip from jumping over the holes and giving the pad face a wave look.
You should find though, that the discs will never need machining, unless you have worn the pad material to the backing plate and gone metal to metal. The only machining needed will be to remove the lip off the outer diameter of the disc, were the pads have not touched.
Cheers,
Mark.
To turn the rotors, have the lathe set at a feed and speed rate, to minimise the cutting tip from jumping over the holes and giving the pad face a wave look.
You should find though, that the discs will never need machining, unless you have worn the pad material to the backing plate and gone metal to metal. The only machining needed will be to remove the lip off the outer diameter of the disc, were the pads have not touched.
Cheers,
Mark.
Registered User
iTrader: (5)
Joined: Dec 2002
Posts: 1,839
From: Folsom, CA
Car Info: 02 WRX/05 Legacy
So mark, I suspect that there are some left over pad material on my rotors when I literally smoked my brakes during one drive (I finally learned what brake fades are that day :P ). Without turning the rotors, will these be scrubbed off over time, or can I get rid of them using some sandpaper?
Guest
Posts: n/a
You will no doubt have resin build up on the pad face if you smoked the rotors and pads. Therefore giving you a shudder whilst braking.
Using a 120 grit emery paper and scuff up the pad face of the disc, should remove this pad/resin build up. There really isn't a need to reface the disc.
Hope this helps.
Using a 120 grit emery paper and scuff up the pad face of the disc, should remove this pad/resin build up. There really isn't a need to reface the disc.
Hope this helps.
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