Brake Kit Marketing 101

[chicane67]

So what, no one has any numbers? Please share you brake systems and any actual useful data you have regarding the set up.

Well, my 67 had factory four piston fronts with drum rears. At the time, it weighed in at around 3200lbs with 14x7 wheel, a 235/60/14 BFG Radial T/A tire with a WS6 power master, set up as a manual application. Here is the low down:

Front:
Brake manufacturer: GM Delco Morrane
Caliper/Piston Number: D3 four piston; 1 7/8" dia
Rotor Manufacturer: Classic
Rotor Type: Solid 1 pc integral hub
Rotor Dimensions: 11 x 1"
Wheel/Tire Size: 14x7 235/60/14
Tire make/model: BFG Radial T/A
Brake Line: Mildsteel 3/16" hardline, Guldstrand SS Flex lines
Brake Fluid: Wilwood 570
Pad type/compound: Porterfield R4-S
Master size: 1 1/8"
Weight: Unknown
Combined left and right: Unknown

Rear:
Brake Manufacturer: GM Delco Morrane
Drum: Stock
Drum Manufacturer: GM
Drum Type: Solid, iron, non drilled/vented
Drum Dimensions: 9 1/2 x 2 1/4"
Wheel/Tire Size: 15 x 8 255/60/15 BFG Radial T/A
Tire make/model: BFGoodrich g-Force T/A KD
Brake Line: Mildsteel 1/4" hard line, Guldstrand SS Flex line
Brake Fluid: Wilwood 570
Shoe type/compound: Porterfield R4-S
Master size: 1 1/8"
Weight: Unknown
Combined left and right: Unknown

After a long stint of testing with Andy Porterfield, while working for Guldstrand, I found and stayed with his R4-S compound. It was what the chassis liked the best. In the noted above trim, I got it's 60-0 down to roughly 118ft in the dusty lane at Streets of Willow and backed that up multiple times at various autoX events in the dust bowl of Jack Murphy Stadium with the average stopping in the 118-120ft range. It didnt really have anything exotic done to it, but I did run the rear shoes backwards to change the effective rear bias and I ran my 720/320 spring package which did tweak the rear IC and nulled any brake hop/axle tramp on decel.

I was then the first person to get BAER's 13" PBR Track system into a 16" wheel. It used Vintage Wheel Works "V45"s a 3/16" spacer which was only needed when the pads were new... but I never got any numbers from that system. We'll have to ask Carl and/or John if they have any numbers as they did this same system a few years later and I know Carl has a bunch of track time to give us a good impression of how that system actually works.

The new system is a little different. Its on the other end of the spectrum, the chassis is much lighter and many other things have been tuned/dialed beyond what I had to ability to tune in the last system. Not to mention the 38 channel Advantage data acqusition... Ill have all the data one could want.

Front:
Brake Manufacturer: AP Racing
Caliper/Piston Number: CP5555, differential bore six-piston
Rotor Manufacturer: AP Racing
Rotor Type: Slotted 2 pc, McLaren floaters
Rotor Dimensions: 355mm x 35.5mm (14 x 1.4")
Wheel/Tire Size: 18x9.5 265/40/18
Tire make/model: BFGoodrich g-Force T/A KD
Brake Line: Stainless 3/16" hardline, Goodridge SS Flex lines
Brake Fluid: Motul RBF 600
Pad type/compound: Ferodo 2500
Master size: 7/8"
Weight: 33.5 lbs
Combined left and right: 67 lbs

Rear:
Brake Manufacturer: AP Racing
Caliper/Piston Number: CP5147, four-piston
Rotor Manufacturer: AP Racing
Rotor Type: Slotted 2 pc, Steel hat, factory e-brake compatible
Rotor Dimensions: 330mm x 25.5mm (13 x 1")
Wheel/Tire Size: 18x9.5 275/40/18
Tire make/model: BFGoodrich g-Force T/A KD
Brake Line: Stainless 3/16" hard line, Goodridge SS Flex lines
Brake Fluid: Motul RBF 600
Pad type/compound: Pagid RS421
Master size: 1"
Weight: 27.5 lbs
Combined left and right: 55 lbs



This is the Holy Grail of brake systems.

I have installed and used various systems from every manufacturer..... (Alcon, AP Racing, Brembo, CNC, PBR, Perf Fric, JFZ, Stoptech and Wilwood) which also goes for pad/compounds (Axxis, Carbotech, Ferodo, Hawk, Pagid, Perf Fric, Porterfield, Poly Matrix, Raybestos and Mintex). The modulation, fade resistance, predictability and shear stopping power of these independant systems is nothing short of phenomenal.

When dialed in, Ill be looking at sub 95' (or better) 60-0 stopping distances.