Brakes

[SLR]

I know this has come up in the past but I have done a quick search and not come up with what I need, so some one may be able to help.
I have 1985 3.2 sport and are looking at up grading the brakes. I think the Boxter brakes will fit with the extra bracket? I think I will do all four wheels
I have 16" wheels and not sure about the spacers if that makes a different.
thanks for any constructive input.
Steve.

[ChrisBennet]

First, I commend you for spelling "brakes" correctly (do a search on "breaks" sometime!).
Any real upgrade would involve increasing the mass of your rotors. No mass change equals no upgrade. Simply changing calipers will not increase how many times you can stop before the brakes overheat.

Do a search on "brakes" and check out Bill Verburgs excellent treatise on the subject. http://home.nycap.rr.com/wmv/generalbrmd.htm
-Chris

[JP911]

How do you use the car? For street driving, the stock brakes should be more than capable, but if yours are feeling weak a caliper rebuild, fresh soft lines, fluid flush, and better pads will go a long way. For track work, the first option would be better pads and ducting to improve cooling, while the second option would be to go with 930 brakes on all 4 corners. The 930 setup will work under the 16s, but may require a very thin spacer (mine did). The biggest drawback of the 930 brakes is cost. You're looking at about $3500 (US) for everything.

[hahnmgh63]

Take a look at this Pelican link. I'm thinking about the same thing for my '74 w/3.6 & S brakes. MGH
The ultimate brake upgrade page.

[barney911rs]

I had Carerra calipers and rotors on the front and the stock setup in the rear of of my 73. I upgraded to the Boxster caliper in front and a BMW caliper in the rear. What I got was better feel. I was not having fading issues and overheating issues, I was looking to change the mechanical leverages. Because I have larger pads front and rear, I found I can get as much braking effort with less clamping force.

As my brakes would get hot later in a session, I would start to have issues locking the fronts, especially in bumpy braking areas. I also noticed that I was having to press very hard on the pedal. After making all of my changes, I was able to just use firm pressure and I still got the car to slow as I expected. This is on a 2100lb car with racing slicks.

I like the Boxster caliper, but I'm not sure if my rear application will work on the rear of a stock Carerra. I think you have a wider rear rotor. There was another thread not too long ago about someone using the rear Boxster caliper, but they were not happy with that setup and how the caliper was mounted.

Thanks my $.02