This is my kind of 996 brake upgrade!

[Jaskas]

Hi all!

After I did the 3.6 conversion to my -87 I´ve been having wet dreams about bigger brakes for my car.
Offcourse everybody who can drive their cars tell me that you are just fine with the stock brakes. I´m still having the same dreams even after my total rebuild of brakesystem.

I do drive occacianally on the track, and i have never had total confidence on the stock brakes. I just had to do something.

Well, first you have to choose the way to go.
- 930 brakes .... cool, but hard to get ... NO
- 993 brakes ... these are well known upgrade and then quite expencive.... NO
- 996 TT brakes ... A bit overkill... NO
- willwood etc... Nice, expensive, and might be hard to get parts in the future .. NO

But then i found a nicely priced 996 n/a boxsterS caliber kit for ok money...
Well, size is not too overkill, it´s a genuine porsche product, you will get parts for it in the future too... but but... is it bolt on... no. damn.

I was searching through the forums and found only 996tt kits... But then from PP i found out that Mr. Timmins was doing 996 n/a kits. Hmm... I did order my 3.6 conversion kit partly from him and was not that satisfied with the quality.
I did ask a lot of questions about his product and about it´s quality. For example he wasn´t sure how much the offset would change and to what direction. I´ve also heard that he have had problems with measurement of the adapters. His front hub needed also a spacer and the whole hub modified from a another porsche hub by machining it somehow... I wasn´t really sure about this... But when i was asking about the money transfer to him hi stopped replying my emails. Ok, if he don´t want my money, i will find somebody else to do my kit.

At this point i had bought allready the calibers... so I had to something with them.
Then my friend Antti from 9xxparts ( In Finland) asked that could he help me.
- Why not!

He had been developing special hub´s for 944 machined straight out of aluminium billet. Like this:


Offcourse he could make me a kit for my 911 for the 996 brakes. I wanted it to be a bolt on kit without hassel. No spacer, with the same offset and totally porsche original parts to be used.

So off he went:


A little bit of machining:




Rear disc fitment:


996 vs. 911 disc



I wasn´t at his shop when he did the hubs, but here is the final product. It takes original bearings too.

http://gallery.9xx-parts.com/images/9P-911oh.jpg

The whole kit:



And the whole kit on my car:







I have now the original mastercylinder, but the 930 23.1mm cylinder is waiting for installation. I´m also going to take out the rear prop-valve.

I´ve only test driven these new brakes for about 20 km... and they seam to work great. Next kilometers will be driven next summer. The car is going to have a nice and relaxing wintersleep now.

[Jeroen]

very cool!
how much would this set-up cost?

[chris 964]

Jaskas,

Smart! - How much will Antti from 9xxparts charge for the kit?

Chris

[Jaskas]

Hi!

Antti doesn´t read pelican so, heres his email
info (at) 9xx-parts.com.

Im sure he can help you with the price. I think I paid allready all the r&d costs for you guys

[jpnovak]

What wheels fit over these calipers? Can he integrate the speed sensor toothed wheel into the same hub?

This could be an attractive way to upgrade to ABS. And yes, the brake availability for 986S/996 is much improved over the 930 and 993 applications.

[Jaskas]

Im running 17" rotas


I dont think 996 brake will fit over 16".

The abs sensor toothed wheel is for 951. Im sure that it can be done for 911 front hub too, but rear could be difficult.

[Bill Verburg]

Very nicely done!

Do use the 23.8mm m/c and do remove the p/v. If you track the car you will probably want to use a higher friction rear pad set, than what's on the front. For street use it won't matter enough to worry about

[jpnovak]

Can you measure the wheel clearance in both a lateral (front side) and also radial position? Perhaps knowing the radius from the center hub to the outboard edge of the caliper would help determine which wheelset this would fit.

Thanks!

[ShakinJoe]

Very Nice. Would like to know if these will fit under 8" 951's and 9" fuchs in the 16" variant.

[Jaskas]

I dont have any 16" fuchs lying around, but i can take the measurements.
I think the easiest way is to measure how much higher the caliber is compared to the disc.

[Samujr]

Very nice and quality finishing as all of his products. It would be really nice to know if 16" can be used with this set. I have 951 8" Fuchs here in Tre garage but I do not have plans to visit Hki in coming weeks.

[Jaskas]

Samu, you have to take your 16" wheels with you next time you come to Helsinki.

[Dirk Diggler]

Hmm, looks like the caliber adaptors are made from aluminium. I wouldn't go for aluminium for these critical part, as they tend to crack. On various 964 to big red adaptors this is a known issue. Please ensure that you check them for hairline cracks often.

[Kroggers]

Very nice. I think I will have to make a visit to 9xx when i get to Helsinki

[Jaskas]

Originally Posted by Dirk Diggler

Hmm, looks like the caliber adaptors are made from aluminium. I wouldn't go for aluminium for these critical part, as they tend to crack. On various 964 to big red adaptors this is a known issue. Please ensure that you check them for hairline cracks often.

Offcourse you could use steel too. But as you know the rear hubs, on which the adapters are attached is aluminium too. On front, its Fe.

But when developing adapters you have be sure to use right kind of aluminium combound to ensure adapters strenght. I dont know exatly what kind of Al he used, i think he want´s to keep something as a secret . You have to keep in mind right material thickness too.

9xxparts has also made Fe-adapters, but he decided to use Al in this case, because the adapters were so "thick".

[Ofishbein]

TRE has been selling a Boxster brake kit like this for some time - and it allows for the use of 16inch Fuchs wheels.

[wildcat077]

Jaskas,

That is a nice piece of workmanship you have on your car ...
I have the Timmins kit on my 996TT conversion and the fit was good,no issues so far !

Your machinist friend does nice work,especially starting from scratch and fabricating those hubs and adapters.He most likely used 2024-T42 or 7075-T6 aluminium for his parts which is most commonly used in the aeronautics industry,although 7075-T6 material is more prone to corrosion especially when mated to dissimilar metals ...

Cheers !
Phil

[Bill Verburg]

Originally Posted by Ofishbein

TRE has been selling a Boxster brake kit like this for some time - and it allows for the use of 16inch Fuchs wheels.

There is a significant difference between Boxster and Boxster S brakes.

Boxster is far more of a cosmetic modification that provides little real brake improvement.

Boxster S on the other hand is a big step up.

Boxster uses the same 282x24mm & 290x24mm rotors that are used on 3.2 Carrera

Boxster S uses the 996 318x28mm & 299x24mm rotors, this is a great size for 911s

next step up is 930s w/ 304x32mm & 309x28mm rotors also a great size for 911s

Very few 911s need the following;

993RS w/ 322x32 & 322x28

996tt w/ 330x34 & 330x28mm rotors

all caliper adapters I've ever seen are aluminum, the factory to my knowledge has never used adapters they always make special uprights or other parts for the calipers

[Jaskas]

Bill, heres one out of steel:
9xx-parts product images

now you have seen one

[Outlaw 911]

Where can I buy these parts?

Hubs and caliper adapters?

Thanks

Outlaw 911