HorstP

Anybody has experience with 964 brakes on a 3.2 Carrera? Worth doing it or just a weight saver?

Bill Verburg

I adapted 964 calipers on 930 rotor to my 911,

first it's a non trivial job which requires major machining on the front calipers to convert them from axial to radial mount to do it right
the rears are relatively easy to adapt.
The 930 rotors, of course, just bolt on.

alternately you can do it the half a**ed way and just hog out the holes(at least in front, I have no clue how to do that in back) but that isn't much if any improvement on what you have now as you retain the rotors that you now have.

All in all i'd recommend just installing 930s

The main thing that can be significantly improved on a 911 is thermal capacity, for that you need cooling, bigger rotors and better pad/fluid material properties, None of which are accomplished by changing just calipers

911Dave

Not worth doing unless it's for a serious track car. The stock Carrera brakes are excellent.

race911

Even if it's a serious track car, you're going to go the proper way and do a 930 setup like Bill mentioned above.

I've got a 993 caliper setup with some hats to adapt a wider rotor from the guts of Ruby that Ed installed as he went through that project. So there ARE options. And none that I would call a weight saver. (Which is pretty irrelevant until you're either looking for that last second or so of lap time, or are competing in sanctioned, timed events.)

wildcat077

Horst,

Don't go half *** with your brake upgrade ... i installed 996TT brakes three years ago after much reading on Rennlist and Pelican about overkill,unsprung weight,etc and after some 40+ track days i've never regretted it.

There are a lot of options available ... i just happened to get an awesome deal on the 996TT package !

Cheers
Phil

HorstP

Thanks guys for answering. I was reading for hours on Pelican, but I don't typically post there. Reason why I ask is that I want to get a grip on what additional investment comes up with a 3.6l conversion. My brakes right now work just fine and I don't track the car. But I guess brakes would need to match the engine. First I was thinking that it is not needed as the bigger motor is not much heavier and the top speed will be about the same (it currently pulls past redline and runs 260km/h /160mph indicated). Seems however that everybody with a conversion has upgraded the brakes and there is a reason why Porsche did the same.
What makes it even more difficult is the fact that the brakes must fit under my 16" Fuchs and be road legal.

wildcat077

Horst,

PM me your email and i'll fill you in on my 3.6 install that i did over the Summer, it's still fresh in my memory ... and bank account

Cheers
Phil

911Dave

Unless you're going to drive the car at it's limits, there is nothing to be gained by upgrading your brakes. Replacing the 3.2 with a 3.6 doesn't call for a brake upgrade unless you intend to make use of that extra power. Even at aggressive street speeds you are not pushing the limits of the stock Carrera brakes. What matters is how the car is to be driven and its weight, not just the power output of the engine. Do the upgrade if you want to, but it sure doesn't sound like it will provide any advantage to you.