'78 930 Turbo Brakes, looks cool, why not? Options

[kdfoust]

So I'm browsing around on EBAY today and run across a turbo caliper from '78. Is there any big downside to using a set of them on my conversion car? Obviously, I've got to find a set first... (IMG:style_emoticons/default/biggrin.gif)

Here's a link to the auction so you can see what caliper I'm talking about.

Later,
Kevin

[TimT]

How do you figure the Wilwoods are at the thermal max

thats easy, its not the caliper that is being overly taxed... its the rotors. Putting a nice big caliper, with 4 pistons, larger pad area, and more aggresive pads on a stockish rotor taxes the thermal reserves of the brake rotor..

The rotor is what gets rid of all (most) the energy (heat) that you generate from decelerating a car

a really nice brake system for 914s that is cost effective, but unfortunately doesnt have much bling, is a take off set from a carrera. Can be had for cheap, rotors are cheap, and makes a matched system.

[Matt Romanowski]

How do you figure the Wilwoods are at the thermal max

thats easy, its not the caliper that is being overly taxed... its the rotors. Putting a nice big caliper, with 4 pistons, larger pad area, and more aggresive pads on a stockish rotor taxes the thermal reserves of the brake rotor..

The rotor is what gets rid of all (most) the energy (heat) that you generate from decelerating a car

a really nice brake system for 914s that is cost effective, but unfortunately doesnt have much bling, is a take off set from a carrera. Can be had for cheap, rotors are cheap, and makes a matched system.

This brings up an interesting point that I've never been able to resolve. People will argue that if you are stopping a certain weight car in a set distance, regardless of brake size, it generates the same amount of heat. I'm not an engineer (shadetree doesn't count (IMG:style_emoticons/default/burnout.gif) ), but that sounds resonable to me.

If that is the case, then the size of the caliper, number of pistons, etc. deosn't really matter. That said, as long as the rotor can handle the thermal loads, the caliper isn't that important.

In my mind, the biggest problem 90% of people have is lack of airflow. Heck, I got stock brakes to work on my car with ~175 horse out of a 2270. At places like Watkins Glen, Pocono, Limerock and Sebring they weren't a problem. At NHIS, I could overheat them in about 15 minutes, but NHIS is one of the hardest tracks on brakes in the country.

Matt