Question. Interest in affordable brake caliper upgrade. Blue Collar BBK.

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BlueOvalF22

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Interesting... I've used similar on other platforms with great success as long as the over all piston volume is the same or at least very close. If I'd not already purchased the Roush Alcons I'd be interested. Still going to follow for possible future recommendations.

Basic Hydraulics
  • Force = psi x Area of Piston

The piston area is the thing to watch.

I've been able to lookup the piston diameter of the ford two-piston calipers.

I've also found the diameters (three different) of the six-piston calipers I'm considering.

So for the piston area.

Ford Twin ~ 450 cm^2

A particular mass produced for OEM Brembo six-piston ~ 550 cm^2

It's a 100 cm^2 difference or 39.37 sq inches

I'll do the same calculations for the rear 4 pistons.

The front 6 and rear 4 are off the same donor vehicle.

Front pad Ford

FordPad.JPG

Brembo
PPAD.JPG
 
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Zeusmotorworks

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Basic Hydraulics
  • Force = psi x Area of Piston

The piston area is the thing to watch.

I've been able to lookup the piston diameter of the ford two-piston calipers.

I've also found the diameters (three different) of the six-piston calipers I'm considering.

So for the piston area.

Ford Twin ~ 450 cm^2

A particular mass produced for OEM Brembo six-piston ~ 550 cm^2

It's a 100 cm^2 difference or 39.37 sq inches

I'll do the same calculations for the rear 4 pistons.

The front 6 and rear 4 are off the same donor vehicle.

Front pad Ford

View attachment 371884

Brembo
View attachment 371885
Thank you sir... I've been teaching kids (20s-30s) how how to deploy their various AR-15s in full kit all week and I will say that the heat and humidity is definitely for the "kids".
 

BenBB

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Basic Hydraulics
  • Force = psi x Area of Piston

The piston area is the thing to watch.

I've been able to lookup the piston diameter of the ford two-piston calipers.

I've also found the diameters (three different) of the six-piston calipers I'm considering.

So for the piston area.

Ford Twin ~ 450 cm^2

A particular mass produced for OEM Brembo six-piston ~ 550 cm^2

It's a 100 cm^2 difference or 39.37 sq inches

I'll do the same calculations for the rear 4 pistons.

The front 6 and rear 4 are off the same donor vehicle.

Front pad Ford

View attachment 371884

Brembo
View attachment 371885
Ok I should S T F U because I'm not an enguhneer but 100cm²=15.5in². Just sayin' heh, since it's squared the 2.54cm=1" has to apply to just the two sides (10cm) instead of the total. I didn't run the total area of the rotors because circles are a pain but I don't even know if they would total 3 square feet haha! But still, that's like 22% larger area (=force with the same pressure applied), and would likely translate into a huge improvement, measurable as well as seat of the pants. Very interested to see what you can do!!!
 

TomDirt

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I found this panic braking equation online: (3 tons)×(ignoring the speed limit)×(maybe I Was tailgating that prius)+(37's just Look better)=(crumpled prius)/(scratched my bumper)+( a slamdunk lawsuit).
 
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BlueOvalF22

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Ok I should S T F U because I'm not an enguhneer but 100cm²=15.5in². Just sayin' heh, since it's squared the 2.54cm=1" has to apply to just the two sides (10cm) instead of the total. I didn't run the total area of the rotors because circles are a pain but I don't even know if they would total 3 square feet haha! But still, that's like 22% larger area (=force with the same pressure applied), and would likely translate into a huge improvement, measurable as well as seat of the pants. Very interested to see what you can do!!!

The piston area of the calipers is both sides. This determines clamping force.

The brake pad swept area is a different factor.

However, more brake pad area squeezed harder is more stopping power. The calipers flex less, only the pistons move and the aluminum bodies dissipate heat better.
 
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