Cross drilled rotors. Where?
Thread Starter
Intermediate
Joined: Apr 2002
Posts: 49
Likes: 0
From: albuquerque nm
Cross drilled rotors. Where?
I'm looking for some cross drilled rotors for my 87. Where can I get the best bang for my buck. Which is best cross drilled or slot rotors, or both?
Team Owner
Joined: Sep 2001
Posts: 62,161
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: Cross drilled rotors. Where? (twogonzo)
unless you do alot of racing, there is no need for slotted rotors
a C5 brake conversion would be the best thing to do, but i dont think they fit the 84-87 wheels
a C5 brake conversion would be the best thing to do, but i dont think they fit the 84-87 wheels
Drifting
Joined: Dec 2000
Posts: 1,733
Likes: 0
From: Sarasota FL
Re: Cross drilled rotors. Where? (twogonzo)
I used the GM DuraStop cross drilled and slotted rotors when I did the C-5 upgrade. It was mostly an esthetic decision though. I think they look cool. Jeff Kopp can get them for you for $105 each for the C-5 rotors. Don't know about the ZR-1/ GS rotors...
Melting Slicks
Joined: Apr 2002
Posts: 3,019
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From: down that one road next to that big tree
Re: Cross drilled rotors. Where? (DON M)
TPIS has the plated/ drilled ones for your year $81 each, cad plating is great on a drilled rotor, keeps the holes from rusting and they look prettier
Racer
Joined: Jan 2002
Posts: 258
Likes: 0
From: South Glastonbury CT
St. Jude Donor '06
Re: Cross drilled rotors. Where? (twogonzo)
Save yourself some money and keep your stock brakes or upgrade to C5 or GS brakes. Cross drilled stock sized brakes will give you less stopping power becuase of less swepted area. Cross drilling is fine for very large special alloy disks. If you are looking for good braking just go bigger. I like GS brakes. If you are looking for looks, get cross drilled, but you may give up a little at stock size. I suggest braided stainless lines and a DRM bias spring as well. :cheers:
Safety Car
Joined: Jul 2001
Posts: 4,178
Likes: 2
From: Windermere FL
Re: Cross drilled rotors. Where? (mj_duell)
Save yourself some money and keep your stock brakes or upgrade to C5 or GS brakes. Cross drilled stock sized brakes will give you less stopping power becuase of less swepted area. Cross drilling is fine for very large special alloy disks. If you are looking for good braking just go bigger. I like GS brakes. If you are looking for looks, get cross drilled, but you may give up a little at stock size. I suggest braided stainless lines and a DRM bias spring as well. :cheers:
The drilling is for looks. Slotted helps release built up gas under the pad during heavy braking. C5 pads are slotted doing the same thing.
Drilling actually creates weak points making them more susceptable to cracking which noone covers. You crack one its your problem.
If you want better braking , get the bias spring and upgrade to either C5 or GS brakes. The GS are head and shoulders better than what you have with the C5 being that much better again over the GS brakes. I talked to 18carfan, GM parts guy. He's running what I am, stock C5 rotors, even though he could get the drilled cheap. You do the math.
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Racer
Joined: Jan 2002
Posts: 258
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From: South Glastonbury CT
St. Jude Donor '06
Re: Cross drilled rotors. Where? (92TripleBlack)
Drilling actually creates weak points making them more susceptable to cracking which noone covers. You crack one its your problem.
Racer
Joined: Jun 2002
Posts: 428
Likes: 0
From: Dallas Tx
Re: Cross drilled rotors. Where? (twogonzo)
I'd vote for the Baer Eradispeeds on several counts.
1) Lighter, due to the aluminum hub.
2) Crossdrilled as an option (for looks and a small weight savings. If properly deburred and broken-in, durability is good, short of all out racing.
3) Vented rotor in the rear
4) These rotors with GS Calipers have great aesthetics.
Upgrading to the 13" rotor and GS calipers is a change that, with good pads, will produce very good braking. C5 brakes, Alcons, etc are even better, but more $$$.
1) Lighter, due to the aluminum hub.
2) Crossdrilled as an option (for looks and a small weight savings. If properly deburred and broken-in, durability is good, short of all out racing.
3) Vented rotor in the rear
4) These rotors with GS Calipers have great aesthetics.
Upgrading to the 13" rotor and GS calipers is a change that, with good pads, will produce very good braking. C5 brakes, Alcons, etc are even better, but more $$$.
Le Mans Master
Joined: Jan 1999
Posts: 5,135
Likes: 24
From: Long Island NY
Re: Cross drilled rotors. Where? (tkrussell)
I'd vote for the Baer Eradispeeds on several counts.
Le Mans Master
Joined: Aug 2000
Posts: 6,227
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From: Corona CA
Re: Cross drilled rotors. Where? (Hammer)
I thought they were backwards as well, but that the correct direction.
