SP20 big brake kit - Update, date etc

[pr1mo]

i have a mate that works for PBR. we installed my DBA's and the first thing he suggested was a caliper rebuild/upgrade

cheers mike

[BigMal]

So can you get is cheap stuff Buddy ???

[preeman80]

Mal: I will check 2morow, when everything is open again..

[BigMal]

All good. Thanks

[dfvadr]

hsv calipars are 4 piston an they have drilled rotors on them , i think wat critter has is the commadorre 1's which r the same as ss an the rotars are dba's drilled to suit

now sp20's have to have a 55mm total depth

mal do you want me to get that calipar to mik or bring it to our next cruise?

[BigMal]

Think you will find critters are ford pbr calipers used on some AU's and mustangs
here in Aus.

http://www.v8sho.com/SHO/images/cobr...akes/96bks.jpg
http://www.springfieldmotorsport.com/newbaer.html

Even in the US though they have moved to the commodore PBR style.
http://cobras.worldwidegarage.com/displayarticle4.html

What I need is a price please for the GTO rotors DBA216 and also how
thick the police pads are DB1344.

Ta

Mal

[dfvadr]

mal im off to the brake place 2morro ill check out the pad thickness an get a price for ur rotors

[BigMal]

Thanks heaps

[dfvadr]

ok mal dba216 314 x 45.5 x 30mm thick with centre hole off 69mm 5stud i can buy for $90.00 each
the police pads for the commadorre calipars 55mm more braking area but the thickness is the same as normal pads
they are ultimates an there $110
he give me his 2000 dba catalogue so im going to go through it an try to match sumthing for an sp20

[preeman80]

Rod,

Were you able to match anything for SP20 from the Bendix, DBA catalogues??

Thanks,

Pree.

[dfvadr]

to be honest ive been to busy with other stuff an haven't looked any further into it

[twilightprotege]

how are you guys going with this? you might have seen my post in another thread, but thought i'd see what's going on here.

[dfvadr]

i scorced the maker off blank rotors but they will not sell them to public
wen i say blank thats exactly wat they are not even the bearings have been machined out i wanted to do my own but no go so im waiting to see the dba factory an see if i can cut a deal with them

im looking at 330 mm dia they come in 30mm thick so to put on the commadorre calipers ill have to machine 1.5 mm off each side off the rotor and make up a mounting bracket to anchor the caliper as the mazda mounts are way different

[BigMal]

Dont machine the rotors have the brake pads shaved by the 1.5 that way
on the 2nd set of pads will be a perfect fit so the rotors will last longer.

Regards

Mal

[twilightprotege]

yeah shavnig the pads seams to be a better idea

[dfvadr]

yer true guys an pads are cheaper

[twilightprotege]

unless there is some way to widen the caliper???

[dfvadr]

no the calipar is a fixed width an to machine it would only weaken it

[twilightprotege]

damn. i just know with the 4 piston rx7 calipers i'm getting they can be widened

[Cosmo Dude]

The Rx-7 calipers are two piece, if you were to seperate the halves and make a spacer plate you could widen them although it would allow a little more flex in them under high preasure. Probably not enought to fuss over though.