My Bronco is currently running factory front Disc Brakes along with Explorer Rear Disc Brakes on a new Currie 9" Rear. I have found that the stock Vacuum Boosted Hydraulic System still has much to be desired in such a heavy truck, especially with a performance engine.
My research has determined that a stock Vacuum Boost Brake System operates at approximately 500 psi and a Hydro Boost Brake System operates at approximately 800 psi.
Then I started looking at the Electric Boost Braking Systems by ABS Power Brake. These system are a high end upgrade for performance Hot Rod builds and heavy trucks. They operate with a high pressure electric pump, to an accumulator and Master Cylinder at a pressure of 1600 psi working to 2400 psi max!!! No engine vacuum is used and the existing Brake Booster or Hydro Boost is removed. The new Master Cylinder mounts directly to the firewall, (or remotely if desired), and the Electric Pump and Accumulator can be mounted almost anywhere else as long as it is below the Master Cylinder to support the gravity brake fluid feed. Also, the Accumulator allows for a smooth brake application and supports 10-15 full brake applications in the case of electric pump failure.
I was initially worried about the safety of higher pressure in the existing brake system, but FedHill rates 3/16" (.028 wall thickness) brake lines at 3200 psi Max Working Pressure and 17,000 psi Theoretical Bursting Pressure. And quality flexible stainless steel brake lines are rated approximately 4000 psi Max Working Pressure and 13,000 psi Bursting Pressure.
ABS Power Brake will set up this system custom to the vehicle and the install appears fairly straight forward. It only has two hydraulic connections, the gravity feed from the reservoir and the high pressure assist line that gets plumbed back to the port on the master cylinder with the accumulator inline. The integral pressure switch and relay come pre-wired, requiring only a ground, a battery connection and a keyed ignition connection.
Does anyone have any experience with an Electric Boost Braking System? If you have experience, what are your thoughts?
See this link for a video of Stacey David on the ABS Electric Boost System.
Stacey David - ABS Power Brake
I know this is once again overkill, but that hasn't stopped me before... :toothless
My research has determined that a stock Vacuum Boost Brake System operates at approximately 500 psi and a Hydro Boost Brake System operates at approximately 800 psi.
Then I started looking at the Electric Boost Braking Systems by ABS Power Brake. These system are a high end upgrade for performance Hot Rod builds and heavy trucks. They operate with a high pressure electric pump, to an accumulator and Master Cylinder at a pressure of 1600 psi working to 2400 psi max!!! No engine vacuum is used and the existing Brake Booster or Hydro Boost is removed. The new Master Cylinder mounts directly to the firewall, (or remotely if desired), and the Electric Pump and Accumulator can be mounted almost anywhere else as long as it is below the Master Cylinder to support the gravity brake fluid feed. Also, the Accumulator allows for a smooth brake application and supports 10-15 full brake applications in the case of electric pump failure.
I was initially worried about the safety of higher pressure in the existing brake system, but FedHill rates 3/16" (.028 wall thickness) brake lines at 3200 psi Max Working Pressure and 17,000 psi Theoretical Bursting Pressure. And quality flexible stainless steel brake lines are rated approximately 4000 psi Max Working Pressure and 13,000 psi Bursting Pressure.
ABS Power Brake will set up this system custom to the vehicle and the install appears fairly straight forward. It only has two hydraulic connections, the gravity feed from the reservoir and the high pressure assist line that gets plumbed back to the port on the master cylinder with the accumulator inline. The integral pressure switch and relay come pre-wired, requiring only a ground, a battery connection and a keyed ignition connection.
Does anyone have any experience with an Electric Boost Braking System? If you have experience, what are your thoughts?
See this link for a video of Stacey David on the ABS Electric Boost System.
Stacey David - ABS Power Brake
I know this is once again overkill, but that hasn't stopped me before... :toothless