1979-1993 & 94 Conv [Subscribe to Daily Digest] |
"Thirdly, are the 9000 brakes installed on the rears as well?"
No, they're the same rear brakes on both 88+ c900s and all 9000s.
In my experience, "upgrading" to 9000 calipers is not worth the effort.
Here is some other info on 9000 brakes:
* 9000 calipers are 3.6 pounds heavier per corner -- that is, caliper and rotor. (This can vary a bit depending on which rotors you have.) This is all unsprung weight.
* 9000 calipers and Aero/Super Aero rims add 43 pounds to your car, all of it unsprung and a lot of it rotating mass.
* The heaviest 9000 rotors, by Balo and Brembo, weigh 14.95 and 14.88 pounds, respectively; meanwhile, the lightest rotors, by Zimmerman, weigh 14.5 (their kick-ass cross-drilled rotors weigh 14.0 pounds). The heaviest 900 rotors, by Brembo (which is OEM, I believe), weigh 14.2 pounds, whereas the lightest, by ATE, weigh 13.44 pounds.
* The stock donut spare tire does not fit over 9000 brakes: if you get a flat up front, you'll have to swap a good rim from the rear to the front, then put the donut on the rear.
* Installing 9000 calipers requires an adjustment to the master cylinder to compensate for the longer pedal travel. This travel is due to the larger piston size in the 9000 calipers.
* Installing 9000 calipers and rotors requires the use of washers on the caliper bolts; without them, the bolts will rub against the rotors. (900 rotors are 278mm x 23.5mm thick, while 9000 rotors are 280 x 25mm thick. If you purchased "9000" rotors that are 23.5mm thick, then you were sold 900 rotors being sold as 9000 rotors.)
Here's some more info on brakes: http://saabhippo.blogspot.com/2005/08/brakes.html
posted by 67.183.141...
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.