996 front calipers

[914timo]

I would like to have some info about 996 front calipers. Do they have big reds ??

Bill Verburg´s excelent brake pages dont list 996 calipers. I suppose 996 calipers are not THE big reds, but are they same as in some other late model 911 ??

[s_wilwerding]

I do know that 996 calipers/rotors have to have 17" wheels - you can't get 16" wheels on over them. Have you considered Boxster calipers? They're not quite as big as 996 calipers, but I would say that they have about 90% of the stopping force.

[SRISER]

Do Boxter calipers fit 97-89 Carrera's? How and what kind of mods do you have to do to get them to fit?

[s_wilwerding]

I don't know if they fit, it's just that I think you'd have an easier time fitting Boxster brakes than 996 brakes.

I do, however, recall someone on the Board fitting Boxster brakes to an SC, so I'm sure it can be done on the late model 3.2s. Try a search for "Boxster calipers".

EDIT: Here's a good thread.

[Bill Verburg]

here are some 996 specs
front pistons 40/36
rear pistons 30/28

total pad area 450cm²

front pad area 254cm²
rear pad area 196cm²
front pad thickness 12mm
rear pad thickness 10.5mm
front rotor 318x28mm
rear rotor 299x24mm
the same setup is used on Boxster S

The 318mm rotor will require a 17" wheel, if a smaller rotor is used then 16" rims cam be used

[Superman]

I know that Boxster brakes are getting popular because of their price. I think all four calipers can be had for well under $1k. Fordahl Motorsports is working on a conversion kit, since they are getting so popular with the 914 crowd.

[Bill Verburg]

The normal Boxster front calipers are popular upgrades because they fit in 15" wheels and use the 24mm Carrera front rotor and stock Carrera rears w/o a p/v.

This upgrade is only a marginal improvement on Carrera brakes.

[SRISER]

I guess my next dumb question is are they a bolt on item or do they need to be modified to fit a 87-89 Carrera?

[914timo]

Bill Verburg, many thanks.

[914timo]

Could somebody show me pics about 996 calipers ??

Have anybody installed them in SC or early 911 ??

[nestorjw]

I have a full set of 996 big reds and a front set of boxter calipers for sale! Let me know if you are interested. www.wold.com/porsche

[914timo]

Thanks Jeff, but I will try to find them a little closer to me, first from Europe.

Your 996 calipers are red, right ?? I have thought they are all silver. This is why I would like to see pics about them. Is there any other differences between the red and silver ones than color ??

[Toga82sc]

I put a full set of boxster calibers and carrera cross-drilled rotors on my 82 SC. As Bill said, the braking is only slightly improved. My cost:
4 Boxster calipers and rotors: $550.00 (Ebay)
4 Cross-drilled rotors: $300.00
Pads all-round: $125.00
Caliper adapters from TRE motorsports: $400.00
Sold Boxster rotors: $150.00

Net cost is about: $1275

Oh forgot $30 for red caliper paint and $5 for Porche stencils

Toga82sc

[Glasgow 911SC]

I guess my next dumb question is are they a bolt on item or do they need to be modified

They need a set of adapter brackets to fit the strut of earlier cars.

[Bill Verburg]

The biggest issue w/ any of these upgrades is rotors

The 996 front calipers(aks Boxster front) will want a 28mm thick rotor. It is possible to do as Chris Streit has done on his race car(sourced by VCI). But it is not common.

The Boxster kits are used w/ the 24mm Carrera rotors

The best choices are the 32mm 930 or 993tt rotors which need a different set of calipers(thought many of the smaller ones can be made to work on them) and wheels(usually).

[914timo]

I am still wondering what is the difference between black, silver and red 966 calipers? Are there any other differences than color.

I have a possibility to choice black or silver.

[Jeroen]

Hey Timo,

What are you aiming for? Are these for your 914?

cheers,

Jeroen

[914timo]

What are you aiming for? Are these for your 914?

Well....... we´ll see..... maybe.