wtd -boxter caliper info
 

hey
I need some infomation on the boxter calipers if anyone has some, my local porsche workshop seem to think they would be a straight swap onto a 944 setup to replace my slide calipers. Trouble is i doubt the mountings will be the same, and also have concerns about discrepencies in the disk width and which master cylinder to use.
any info would be appreciated guys as these calipers look very modern having being machined out of aluminium or something (as you can see i have only just started to look into them.)
The price of the calipers is great so i may just have to go for it!!!
Adam

http://www.rennsportsystems.com/2c.html

cant see boxster discs on there tho.... good luck and ley us know what happens.

Who are you using in the UK for the brake upgrade?

ta for the link darren
i wasnt planning on using boxter disks, just the boxter calipers and the 944 vented disks etc.

R.e. the brake upgrade, i use a local breakers just up the road from my house, they supply the bits but i modify everything for my own car, as being porsche specialists they charge porsche hourly rates!!!! something a student cannot afford
One of our lads in the club have just took theyre split bus into david thomas in solihull, he owned the yellow and white bay in volksworld not so long ago. I have seen some of his work and it is top notch plus he knows his stuff. I'll let you know how that turns out soon!!!

hope thats of some help
Adam

Ive been in touch with David recently regarding brakes for my Split. Id be interested to hear how your mate gets on.

Cheers
Darren

Hes having 944 brakes all round, haveing his arse IRSed using a 1303 box, adjustable king and link pin front beam, and a 1776 in the back, i will get pics as soon as its finished!!
Adam

Its the way forward :D

I have some 996 calipers, im trying to find out if they can be used.

I look forward to the pics!

Hello Darren!

All 944/951 has axial mounted front/rear calipers (except 951s has fronts radial mounted)996 and 986 (boxster) has both front rears radial mounted.Soo they are NOT a straight bolt-on you need adapters to mount them.

If you are in UK lee arnold should be able to help you!

good luck

jim
would you mind explaining the difference in laymans terms for me??
cheers
Adam

doesnt it mean one type of caliper is mounted like l and the other is like --

i can never remember which is which tho :D

darren havent you got a picture of your 996 calipers???
i have a picture of the 944 calipers (sliding type, so we could compare the mountings, i shall post the picture tonight
Adam

http://mysite.freeserve.com/stufffor...16466350091285

heres a lil ole pic

ill take another later that shows the mounting points

Not sure if im posting this properly?

why can i only see a link to the pic?

hey
you need the [IMG] link [IMG] tags with a / in the last one
http://mysite.freeserve.com/stufffor...16466350091285

erm ok, it doesnt like your link

Adam :D

Darren
 

Hey Darren,

I used to live in Stockport (Davenport) too till I moved to Sydney. How much were your calipers? I'm thinking of doing a similar conversion to my 61 Karmann cabrio beetle over here in Oz.

Cheers

Steve

Hi Steve

I cant imagine why you left Stockport for Oz . :rolleyes: :D

I paid around £500 for them and im still looking for a way to use them that wont cost me the price of a screaming motor!

Adam... wheres the pics of your 994 gear then :p

http://www.imagestation.com/picture/...8/faba8af8.jpg

there you go sorry it took me a while. As you can see from the picture, the 944 caliper bolts right up onto the caliper mount.
so from what people have said, the 996 and boxter caliper mount the same but the face is rotated 90 degrees. I think this is right sorrect me if i am wrong
Will try and do some reasearch as soon as i have a minute, got a few more leads to go on, but i think it is definatly possible to do.
Adam

Hi Adam thanks for the pic.....its all starting to make sense now :silly:

The 996 calipers mount differently to yours.. if looking at the pic of yours and i held my calipers up to it, mine would bolt through the caliper vertically...across the pistons, not in the same direction, as yours do......if that makes sense

ill get more pics :D

Rigth as promised darren i have done a bit of searching and i came up withthis little lot, i now understand the difference between the two caliper types. It is relatively simple to make the adaptor, so i am going to source a set of calipers off a boxter and have a go at putting them to use on my car. BTW these pics are taken off the main site, here, i dont mean to step on anyones toes by using them , but it helps put the point across easier!

http://www.imagestation.com/picture/...0/fab9e389.jpg http://www.imagestation.com/picture/...a/fab9e4cd.jpg http://www.imagestation.com/picture/...4/fab9e55a.jpg http://www.imagestation.com/picture/...d/fab9e624.jpg

I am now gonna try and get some prices for the adaptors, if they prove cheap enough i shall buy them if not i shall fabricate my own. Only problems i can foresee are the front calipers as they already need an adaptor for the 944 mounting, and then it will need another for the boxter caliper, may be able to make an all in one caliper. I will keep you posted, let me know if you find anything.
Adam

Hey Adam

yeah i can see now thanks for the pic.

If i remember Remmelle make an adaptor and its not cheap!

When i spole to Lee Arnold, he mentioned the expense involved in fabricating a bracket for a boxster/996 type bracket. Altho i cant see why it would be so expensive.

Look forward to you knocking some up ;)
You have your first customer :D

Expense??? i cannot see how this conversion is expensive, i have spoke to one of the blokes at uni, and he says if i struggle to get the machining done thaen they should be able to do it.
Those top adaptors were made by a person on this forum, i shall try and find out who it was and get some info off him
Will let you know
Adam

Matt,
Did you get anywhere with fitting boxster calipers to your 944 set-up?

I have just bought some 996 calipers which should mount the same (only £300!). Which discs did you end up using?

Rich

For the rear I used the 944 20mm thick rear disc.

For the fronts I used the 3.2 carrera front disc which is 24mm thick.

There is a small discrepancy in the radius of the 944 disc vs the boxster disc. This can be accomadated for by dropping the caliper down a little bit. THis is done in the measuremants of the adapter block.

hope this helps

Did you measure the lengths of the pistons in the calipers? Are the discs the same thickness as the boxters?

I will be needing 24mm for the back and 28mm for the front. I don't want my brake pistons falling out when the pads get worn!

Rich

for the 28mm disk i would use a pair off the front of a porsche 944 turbo, just got a set of these for mine,
Adam

I spoke to Mike Ghia and he thought 1986 944 turbo for the front as this was a one year only with thick discs which still mount from the rear (I have early 944 hubs).
For the rear he suggested 928 S2/4 discs.

I still want to confirm these thicknesses or if anyone else can?

Cheers,
Rich

ah sorry I cant help, I have the top hat style disks.

ah just remembered, this disk conversion for the 944 as sold by the porscheshop.com uses porsche 911 disks, dont know the thickness of hand but if they are selling kits using them, they must know what they are doing.
this was on ebay a few weeks back
http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA%3AIT&rd=1

hope its of some help.
Adam

I think that your disc thickness depends on the style caliper that you use. I used the Boxster monoblocks (black in color). The correct disc thickess for these disc is 24mm front and 20mm rear. The boxster S may use a rotor of bigger thickness. I am sure that the rotors I have are the correct ones for the calipers I am using because there are these little posts that the pads sit on. The spacing between these two points is around 26mm so it only aloows for the 24mm thick rotor. The distance between the posts in the back is like 22mm so it only allows for the 20mm rotor. Again, like I said things may be different for the Boxster S calipers. I can get part numbers and a couple picts if you are interested.

These are my 996 calipers:

http://www.ricola.co.uk/images/cabrio/996_calipers.JPG

I believe they are the same as Boxster S
I'll measure between the posts..

Rich

The calipers pictured are different than the ones that I have. The portion of the caliper where the mounting bolt goes through is different. Mine is not as thick. Here is a link to the pelican parts page. I am pretty sure that these are the calipers I have, or at least I what I can tell from the pictures.

http://www.pelicanparts.com/catalog/...boxter_pg7.htm

The best way to determine your disc thickness is to measure the distance betweeen the posts that the pads rest on.