I have yet to find a flaw in the Viggen's braking system and I consider its performance nothing short of amazing. This opinion comes from real world driving, autocross, and track experience. What performance increase do you expect drilled rotors to offer? If you think you need better cooling, I disagree. If you think you'll shop in shorter distances, I disagree again.

The following is the technical info you asked for. It comes from SaabUSA.

"In developing the Saab 37 Viggen jet fighter, one of its key attributes had to be the ability to land and stop in short distances to make use of Sweden's highway bases if necessary. Stopping ability was equally critical to the development of the 9-3 Viggen. The larger 17" wheels enabled Saab to utilize larger brakes and provide deceleration capabilities to match the Viggen's performance potential. The new front ventilated brake rotors are over three-quarters of an inch larger in diameter (12.13" versus 11.34" on the standard 9-3s), and matched with larger calipers housing new brake pads of increased surface area. Coordinating the balance of front/rear braking potential with the suspension tuning and aerodynamic package, rear rotors and calipers are the same size as the standard 9-3 models. All four rotors incorporate the use of grooves machined into the rotor surfaces to improve initial "bite" and provide better cooling for repeated fade-free stops in demanding driving situations.

The Viggen also incorporates the use of a larger brake master cylinder with a twin diaphragm brake booster to provide confidence inspiring brake pedal feel. As with all Saabs, Electronic Brake Force Distribution (EBD) and a four channel Anti-lock Braking system are incorporated as well."

posted by 66.72.178.1...

• drilled rotors on a viggen?, viggentime, Sat, 1 Dec 2001 04:03:33
  • i thought your slotted rotors were the upgrade? n/m, dave n, Sat, 1 Dec 2001 13:47:09
  • Who has cracked their cross drilled rotors?, RedSPG18, Sat, 1 Dec 2001 13:15:58
    • Photo of cracked cross drilled rotors, Jon , Sun, 2 Dec 2001 05:50:10
      • What car are those from??, GM, Sun, 2 Dec 2001 11:50:53
        • stress concentrations, dave n, Sun, 2 Dec 2001 20:29:27
    • I always hear this but have never seen it., nickR, Sat, 1 Dec 2001 14:21:22
  • ever seen a cheese grater?, KeithG, Sat, 1 Dec 2001 11:39:53
    • Re: ever seen a cheese grater?, RedSPG18, Sat, 1 Dec 2001 13:25:16
      • I agree!, GM, Sun, 2 Dec 2001 03:21:30
  • Not a wise investment in my opinion., pmr, Sat, 1 Dec 2001 09:01:39 <-- Viewing This Message
    • Re: Not a wise investment in my opinion., Viggentime, Sat, 1 Dec 2001 13:57:35
      • Completely stock (more)., pmr, Sat, 1 Dec 2001 15:11:03
        • Re: Completely stock (more)., viggentime, Sat, 1 Dec 2001 22:04:36
          • Re: Completely stock (more)., GM, Sun, 2 Dec 2001 14:24:04

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