Keith- Thanks for taking the time to type all of that. Very helpful info. Thanks as well for offering to help. I may take you up on the offer! Hope you're doing well buddy!
Regards,
Mick
On Thursday, September 7, 2023 at 12:41:49 AM PDT, Keith Martin <keithrmartin@...> wrote:
One more input on Brake Pads - I've used a number of them and with all the changes I've done (from both track driving & street driving), I recommend 2 brands, but would choose Cobalt going forward:??
Cobalt:? A local Portland businessman - Eddie Nakato from AR Auto Service purchased Cobalt Brakes 2-3 years ago.? Eddie is a racer and has done work on my car before.? I've talked to Eddie about brake pads for my race car and he understands exactly what I need.? All the "track guys" I have talked to that have already used Cobalt say they are another world for feel and performance.? Cobalt does NOT show 928's on their web site, so would need a set of used pads to make new ones for you.? This is definitely the brand I am going with in the future.? For Street Use, they make a XR5 compound that is designed to replace the 1521 compound Carbotech I used on street before.? I would go with Cobalt XR5 for street use.??
Carbotech?- I had used these brakes for years with excellent success for wear, performance, and minimal dust.? The street compound is 1521 - S4 rear brakes is P/N CT345 (get 1521 compound) and S4 fronts are CT609.? The 1521 compound had zero squeaks (even without the non-squeak covers on the pistons) and were a great pad for the street with great braking performance.? Until there was Cobalt, I was firmly behind Carbotech.? Prior to these I had used Performance Friction (track compound) - they required so much brake pedal pressure I just about bent the steering wheel when on track.? I will never use them again.??
I have also used other pads on street & track, but the Carbotech was by far the best versus the previous.? However, for street going forward, I would use the COBALT XR5.? .??
Like others have said, changing the pads is very easy and above is a bunch of helpful hints on replacing them - pay special attention to not spilling the brake fluid out when pushing the caliper pistons back in - You need a pair of Channel Lock Pliers to open the Expansion Spring, then just either pull the pads out or push the pads (pistons) back a bit for clearance to pull the pads out.? ?
I changed pads so much I bought the neat Porsche recommended Hazet 4971-1 tool for pushing pistons back in.? If you want to do the job at my house, let me know & we can do it quickly.? ?
Regards,
Keith R. Martin
1980 Metallic Black 5 speed with S4 Brakes & other goodies.??
