between us this conv is tricky

[simontwithers]

i've been ringing round this morning trying to source and price up parts for my 944 disc conversion.

i am looking to use the 944T braking system front and rear on my bug.

i say 944T but have now discovered that not just the 944t has the 4 pot calipers i want to use. all the better i now have more options.

the complication is that i have a swingaxle rear end. I have looked into this and think that i will be able to graft them on anyway as the irs drums fit the swingaxle drive shafts, same splines.

as far as i know i need parts from a pre 87 944 which is before the ABS right?? i want the 4 pot calipers and discs.

i started out looking for an 1986 944 but was told this was a 1 off model for that year and would be looking for a needle in a haystack. so i continued for a pre 87 car.

i have read the how to's for the front and have the resources and skills to atempt the rear. i was looking for the steel trailing arms for the seperate caliper brackets, but again a little thin on the ground.

oh well the search goes on.

i think i am going to end up buying a complete rear end and the front brake assemblies plus the master cylinder although i have no need for the trailing arms its probally the best way to go.

ANY info and help u guys can provide will aid my "learning" so please fire away.

also does anyone have any of the parts i need for sale? anything considered. or sources in the uk for parts and info.

thanks for the help.

simon

[simontwithers]

yet another option has now arised

alloy or steel calipers, are there any difference other than the material ??

cheers

[Split50]

Try Mike Ghia.
He supplied me with a complete steel arm rear end, front struts and 4 Carrera 4 calipers which are 4 pot Brembos similar to the late 944 type.

Tim

[simontwithers]

spoke to mike today, the name seemed familiar but didnt click that it was from here, sorry mike!

when i started out i was looking for 944t discs and calipers but was told that the S2 used the same calipers, are the discs and hubs the same too ??
can the carrera 4pot calipers and discs be used, or the carrera calipers on the 944 discs??

in januarys volksworld there was a supercharged 1303, does anyone which brakes are used on that car. could thaey be used on a standard front end??

thanks.

[verbeekb]

Hi Simon,

In the UK there is a place called porschapart, they can be found online too.

For calipers, you could use anything that is 4-pot/aluminum. You can find these on the 944 Turbo and S2, front and rear, most Carrera 2 and 4s, though be aware that some Carrera 2s had 2-pot alloy rear calipers. The 928s had them too, though the front calipers are in the "Big Red" size and are black. Dimensionally most calipers are more or less the same yet piston sizes vary. The pads are interchangeable, though Porsche uses different compounds for different applications (front/rear 944/964 etc.). The 993 calipers are somewhat different but can also be used. Personally, I would not got through the trouble of converting to steel 944 or 924S brakes. If you don't mind spending some money on this, call a Porsche dealer and ask them for a price on 4 996 Turbo rear calipers, these are monobloc, have the pads resting on steel pedestals so they don't have the sticky pad problem the early calipers suffered from, and they have radial mounting holes which allows for a simple aluminum adaptor to fit them to a VW. These where the cheapest new Porsche calipers for a while. I have sold quite a few sets to the waterboys around 350 Euro a set, and the front calipers about E600/set, that was when the 996 Turbo was not out yet, but we had the parts documentation and I was playing with the pricing system. The calipers are more expensive now, but still won't be -that- expensive. They don't have to be painted/coated, they don't need any new seals/pistons or U-plates either.

The 996 Turbo rear-caliper is the nicest all-rounder for German Look cars IMHO, of course, there are a lot more options, Boxster-S, GT2 what not.. these are just nice One set I sold is on a 66 Notchback on 993 (non-turbo) discs mounted on turned down VW disks (to make a hub) This car runs 16" Design 90's around them (very tight).

Hope it helps,

Brian

[simontwithers]

do the 944T with ABS post 87 use the same calipers as the pre 87 non abs cars?? did anything else change as far as the basic components are concerned is discs hubs etc

cheers

[Jim Andritsakos]

All ABS equipped cars come with Brembo calipers.
Steel rear arms : disk carrier(s) can be seperated
Alloy rear arms : one piece design - cannot be seperated
increase in track widht also 2 different offset early (1986) +24mm
and late +62mm.IRS rear end required to install.

951 & 968 (944 TBO) 298x28 mm & 299x24mm 4-piston calipers (axial mount)

951 & 968 "S" 304x32 & 299x24 "928 S-4" bigger front calipers -radial mount front

993 TT 322x32 & 322x28 bigger than above calipers in both f/r front radial real axial mount

996 GT-3 cup car 355x34 & six piston yellow calipers with ceramic inserts monoblock design

986 (boxster) & 996 incl. TT are the most sought calipers for me.

993 TT is the biggest in size - 2 piece - calipers. 993 EVO big black same in size different bell area can support up to 355mm rotor

930 & 964 only get calipers from them...
1990 964 C2 has 2-pot rear Brembo calipers...

For me the best looking calipers are the 996 C4S silver calipers

[simontwithers]

thanks for the info on the different calipers

"Steel rear arms : disk carrier(s) can be seperated"

i knew there was a difference in the caliper mountings on the steel arms with them being seperate but was not aware of a difference in the discs and carriers,

can you please explain the differences

thanks

[simontwithers]

sorry that link doesnt seem to work, i will try again later.

nope got it working now but the site is under construction

[simontwithers]

is there any reason why i cant use the calipers from an ABS kitted 944, are there any major differences to stop me ??

i wouldnt have thought so but wanted to check anyhow

cheers

simon

[verbeekb]

Simon, there is nothing stopping you from using calipers off of an ABS equipped car. For our applications it doesn't matter at all.

Hope it helps,

Brian

Simon...

1) I edited the link above that was posted, so it will work now.
2) Jim's reference to the "disc" carrier is actually the caliper carrier.
3) The hubs/discs are different for the ABS model, the calipers are the same.

[simontwithers]

thanks,

hope to ring about the conversion sometime this week.

[darren]

Does anyone recognise these?

Can you tell me what they may have come off and what size discs I would need?

Cheers

darren

[Alex]

It can only be 996 or Boxster calipers since those are the only Porsches with the new style calipers.

Can you provide a meassurement between the brake pads?

Alex