Wanna run vented rotors on the rear?, Wanna have a parking brake, too? Options

[lapuwali]

Clay Perrine's solution

Being discussed on the Bird board now. He's prepared to make up 50 sets of the brackets if he can find buyers. The caliper is an off-the-shelf Wilwood part.

[GTeener]

Did a little research on this subject in June for my car as some of you remember. I never made the upgrade but I did find this solution for about $350.

http://www.renegadehybrids.com/914_files/9...914E-brake.html

[davep]

They sure add to the unsprung weight, don't they.

[914werke]

(IMG:style_emoticons/default/mad.gif) Theres gatta be a better way

[iamchappy]

It looks pretty good to me and less work than installing shoes. It would be nice to have in case of an emergency. Will they fit over 24mm rotors.

[Andyrew]

Tell me whats wrong with putting a spacer in the caliper.

Widens the caliper so that vented rotors can fit in the rear and keeps stock ebrake.

As long as the correct hardwear is used, I think its fine.

[SirAndy]

i don't know, seems overkill. i just used the 911 rotors, calipers and handbreak setup. all bolts up to the 914 with just a bit of grinding, took me less than 1/2 hours for both arms, bolts right on, works like a charm ...

tip: use 911 handbrake cables ...

(IMG:style_emoticons/default/wink.gif) Andy

[lapuwali]

One of the problems with using the stock rear calipers is the piston area is too small. This is why, when you run big front brakes, you can use a tee instead of a prop valve. The rears have so little power in relation to the fronts that a prop valve would be fully open, anyway. To get more actual braking force at the rear, you need calipers back there with bigger pistons. Once you do THAT, you (may) need vented rotors back there to handle all of the heat that wasn't generated before, because the rears were doing so little in relation to the fronts. With stock rear calipers, you'd never need vented rotors in back.

[lapuwali]

How much does that setup run? Do you have to convert to 5-lug, too?

[SirAndy]

How much does that setup run?  Do you have to convert to 5-lug, too?

yepp, 5-lug it is ...

but i already had 5-lug before i went to the vented rotors in the back ...
(IMG:style_emoticons/default/wink.gif) Andy

as for money, dunno, paid like $150 for 2 like new carrera rotors and calipers and handbreak setup.
that *was* cheap tho ...

[Jeroen]

I have a set of spaced out stock calipers to work with the vented rotors
I'm gonna use 964 calipers on 3.2 rotors up front, so I fear I'll have way too much front bias with the stock rears
Think I'll do a 911 drum brake conversion so I can use bigger rear calipers

Andy, how did you change the 911 cables?
(911 cables being equal length left and right, 914's not)

cheers,

Jeroen

[lapuwali]

yepp, 5-lug it is ...

So, this setup is at least useful for those of us who are stubborn enough to stick with 4-bolt wheels. The new big brake 4-bolt hubs up front (once they're ready), then a better pair of calipers in back, plus these so you have a handbrake.

[SirAndy]

So, this setup is at least useful for those of us who are stubborn enough to stick with 4-bolt wheels. The new big brake 4-bolt hubs up front (once they're ready), then a better pair of calipers in back, plus these so you have a handbrake.

sure. i simply would ask myself:

if i'm already throwing that many wads of cash at my car to get "brand new" 4-lug hubs in the front with vented rotors and modified rear calipers with new vented rotors and a custom handbrake setup and a "tee" or adjusteable prop valve for the brake bias ....

why not save some couple hundred $$$ and go 5-lug instead?

(IMG:style_emoticons/default/confused24.gif) Andy

[anthony]

Wouldn't you need to stay with 4-lug for certain racing/AX classes?

Andy, did you retain the 911 e-brake setup with your rear vented hub/rotors?

[SirAndy]

Wouldn't you need to stay with 4-lug for certain racing/AX classes?

Andy, did you retain the 911 e-brake setup with your rear vented hub/rotors?

the class issues might be true, don't know the rules good enough.

yes, i got the whole crapola, carrera vented rotors, carrera calipers and carrera e-brake assembly. all bolted right on the 914 trailing arm with just a little grinding for the handbrake setup ...

Andy

[iamchappy]

Sounds like a good winter project for me, I have the 944 turbo calipers with the carrera rotors in back but the car some how doesnt feel whole without the ebrake.
I catch myself reaching down for it at times only to find it missing.

[lapuwali]

Cause I like the way 4-lug Fuchs look, and I just spent a good bit of time and effort finding a clean set and fitting new tires to them. I like that they're so light, as well.

5-lug Fuchs are also light, but now I have to spend major money buying 5-lug Fuchs (which I don't like as well, visually, as the 4-lug versions) as well as all of the other 5-lug stuff. I don't really like most of the 5-lug wheels out there. I like 5-lug Mahles, both visually and in super lightness, but they're way expensive and hard to find.

[914Timo]

Andy, how did you change the 911 cables?
(911 cables being equal length left and right, 914's not)

Hmmm...... He didnt answer. I think that tip was not very good. I had 911 cables when I did my conversion and I found that there is no reasonable way to use them. I needed custom cables. But, I am using original e-brake handle and Andy may have found something I didnt....... (IMG:style_emoticons/default/biggrin.gif)

Here is my ......

[914Timo]

Wanna run vented rotors on the rear?

BTW, I forgot to ask why ?? Why vented rotors ?? Is it race car or just for the look or are you going to use some big four piston calipers ??

I had to use them. I could not register my 3 liter six without vented rear rotors. It is not so simple to do conversions here...... (IMG:style_emoticons/default/mad.gif)

[Aaron Cox]

tell me about those rear sway drop links (IMG:style_emoticons/default/smile.gif)