BRON: uk-mkivs.net/forums/t/153276.aspx


PORSCHE CALIPERS*

porsce calipers are monoblock which means they are machined out of 1 solid peice of metal and are lighter and more rigid. LCR brembos are not monoblock, and heavier and not as rigid.


996 rears:

996 rears can be fitted on OEM 312mm discs with custom carriers which are available from DaveB1970. also available from him are some 325mm X 25mm discs which use the same carriers with another spacer to accomodate the larger disc. contact him for more info and prices. these calipers are readily available, and go on ebay for about £250 a pair which makes this a very reasonably priced upgrade. they have 28mm/30mm pistons thickest disc you can fit in them is 25mm.
**** Are a waste of time, and are not an adviseable upgrade
Dit klopt... de zuigers in deze achter remklauwen zijn te klein om op de vooras te gebruiken. Een 54mm lucas klauw heeft een zuigeroppervlakte van 2290mm², de 996 rears hebben een oppervlak van 1322mm²... de remkracht zal dus vele malen slechter zijn...

the calipers you need are part numbers 996.352.421 and 996.352.422 but beware that this is the same part number as boxster rears and DO NOT FIT! luckily you can tell the difference by just looking at the calipers, see the pics below:


996 REARS will be either red, silver or gloss black


BOXSTER REARS are a dull anodized black finish


there is an M6 hole drilled next to where the brake line connects on the 996 rears, shown in the photo below:



Boxster fronts

part numbers for these calipers are 986.352.421 and 986.352.422, they are very similar in appearence to the 996 rears above, but have some subtle differences. the geometry is the same though, so the same carriers are used as above with the 996 rears. they also have larger pistons which are 36mm and 40mm



996 fronts / 996 turbo rears

the part numbers for these are 996.351.425 & 996.351.426 (996 fronts) or 996.352.425 & 996.352.426 (996 turbo rears)
piston sizes for the 996 turbo rears are 28mm and 30mm, and these use a slightly larger pad then the rest of the porsche rear calipers.
piston sizes for the 996 fronts are .................

these require a 28mm disc, there is a 330mm disc available from DaveB1970 which is much taller than the 312mm or 325mm disc and means theres less chance of needing a spacer to clear the caliperss

for the bigger calipers 429&430 and 431+432 then you need a 34mm discs.

996 front caliper:



WHEEL CLEARENCE

Before you get excited and rush out to buy a BBK, you gotta think about your wheel clearance.

***NOTE*** rims are different sizes,different thickness walls, and therefore some may not fit.
these are the minimum wheel sizes, some may be very close, and may need the wheel re-balance with the weights put on the outside(not the rim face, but just not in the way of the caliper)
also some rim designs may require some spacer to fit around the caliper.

***alot of BBS split rims or deep dish rims will struggle to clear brembos or other monoblock calipers, normally a 10mm spacer is all thats needed to clear them***

334mm R32 brakes require 17"wheels

312mm TT brakes require 16"wheels

288mm Brakes require 15" wheels
280mm Brakes require 15" wheels

256mm Rears need a 16"to clear the caliper (15"spare doesn't fit)

most porsche brakes need a 10mm spacer on the front


PAINTING CALIPERS

most people paint there calipers to make them look better, the general consensus on the forum seems to be with big brakes go Anni Red or .:R32 Blue, but if you have standard calipers then a more subtle tone(black, silver, gunmetal grey) might be in order, because nothing looks more "max power" than small bright red/orange/yellow calipers.

before you paint them you will have to remove all the brake dust and the majority of the rust. then mask up the area you don't want paint on and paint. Hammerite smooth and B&Q Japlaq seem very popular. these are cheaper than a special caliper painting kit, which is just in a smaller pot and probably comes with a tin of brake cleaner worth a fiver, and costs more than twice the price.

give them a few coats and for best results don't drive in-between!


BLEEDING BRAKES

It's important to do this properly, having even a little bit of air in there and its negating the big brakes you've just put on! I reccomend using the Gunson Eezi-Bleed system, it costs about 10-15 IIRC.
you just fill up the bottle, fit the correct resevoir cap from the box, then connect up the bottle to the spare tyre (20psi works best). the system is now pressurised and as soon as you crack a nipple fluid will come out, just wait untill the new stuff comes through then close it off. simple!



bleeding the brakes the old school way (as suggested by haynes manuals ) can damage the seal in the master cylinder and cause the brake pedal to feel soft all the time and travel quite far. this is because under normal circumstances the piston only moves 5-10mm at most, but when the piston goes the full length of the cylinder it goes over the rough and pitted surface, this can damage the seal and sometimes flip it rendering the MC useless.


REMKLAUW LEVERANCIERS:
www.teilecar.com/
www.dsp-parts.nl/


BRACKET LEVERANCIERS:

www.3zero3motorsports.com/store/audi/a4/...-2001/2-8l-v6/brakes
store.blackforestindustries.com/apbocabr.html
www.awesome-gti.co.uk/product.php?xProd=6818&xSec=458
www.034motorsport.com/chassis-components...n-steel-p-13230.html
www.creationsmotorsport.com/index.php?cm...&selected_product=51
de brackets voor de 996.352.421/422 klauwen moet 4mm lager gemaakt worden voor de boxster klauwen
www.epytec.de/
www.ultimot.de/
www.mbt-engineering.com/adapters.html
www.purems.com/products/product.php/II=1310

Ik heb zo'n Bleed setje, werkt prima op een Compressor met een drukregelaar en lucht droger er tussen, anders is het mogelijk dat er vocht in de remvloestof komt,
Zeker als je lucht uit een band gebruikt..

Fred schrijft:
ik heb zo'n setje idd ook...
maar gebruik gewoon een reserve wiel

ik heb trouwens de 996 achter remklauwen waar in dit verhaal de opmerking "not worth the effort" bij staat...
we zullen wel zien...

JW

struikie schrijft:
Tja, ben benieuwd!!