Compact Electric Brake Power Booster Master Cylinder, Disc/Disc
Universal Fit, Firewall/Frame Position, Disc/Disc Brake System Type, Tandem Outlet Count
- 12-volt electric power brake booster can be mounted almost anywhere
- System provides up to 2,000 psi of brake line fluid pressure to brakes
- 1-3/16-inch bore master cylinder designed for use with disc/disc braking system
- Master cylinder is compact enough to use directly on firewall, under dash, or under floor
- Perfect solution for engines with low vacuum signals, diesel engines, and boosted applications
- Eliminates unsightly and bulky vacuum power brake booster from firewall
- Hydraulic accumulator stores up to 15 full assist brake applications once 12-volt power removed
- Polished aluminum master cylinder and cap looks great under hood
- Electric power brake booster is very quiet and includes rubber isolators for mounting
- Master cylinder fluid ports are standard 3/8-24 inverted female flare; no special adapters needed
- Includes 4 feet of 3/8-inch fluid supply hose to plumb master cylinder to electric brake booster
- Compatible with all DOT3, DOT4, and DOT5 brake fluid types
Modern Power Brakes Without Relying on a Vacuum Signal
As much as we all love to drive our hot rods, muscle cars, and classic trucks, there are a few safety aspects that we feel require improvement to handle the demands of today's traffic, road speeds, and distracted drivers. We want to enjoy our rides and make it to our destination safely, and to do so improvements in lighting, braking, steering, and visibility are tops on our list. Updating your vehicle's lighting is rather simple, as is making it more visible to other drivers. Steering and braking are a bit more involved, but far from impossible either.
One of the easiest ways to add power brakes to your ride is with one of our compact electric power brake booster and master cylinder kits. Installation is greatly simplified over the traditional large diameter brake vacuum booster that takes up valuable engine bay and firewall real estate. Furthermore, you do not have to worry about your performance modified engine with its aggressive camshaft and not having enough vacuum signal to allow the vacuum brake booster to work properly for power brakes. Installation is simple and the compact components fit almost anywhere, allowing just about any hot rod, classic truck, or muscle car to be equipped with much safer electric power brakes for modern driving safety.
Built with Solid Components Designed to Last
Our compact electric power brake booster and master cylinder combo is designed with premium components that will last the life of your ride. The dual port safety-style master cylinder is crafted from aluminum and receives a high polish finish to compliment whatever you have going on under hood. The master cylinder's 1-3/16-inch bore size easily handles your disc/disc application, including modern multi-piston disc brake calipers. The brake master cylinder mounting ears are slotted, providing a center-to-center mounting distance variance from 3-1/16-inch to 3-7/16-inch, covering most any master cylinder mounting pattern. The brake master cylinder also features an adjustable brake pedal pushrod that is threaded to allow the perfect pedal positioning under your dash. All brake system fluid ports on the master cylinder are industry standard 3/8-24 inverted female flare that take standard 3/16-inch brake lines. No adapters or conversion fittings necessary, providing a cleaner installation and fewer potential leak points.
The 12-volt electric power brake booster is the other half of this dynamic duo and creates an astonishing 2,000 psi of brake fluid line pressure at maximum output to ably handle any braking system. The electric brake booster has a compact footprint that allows it to be mounted just about anywhere (so long as it is lower than the master cylinder) and includes a mounting bracket with rubber isolators for quiet operation. The electric brake booster features an accumulator that stores the pressurized brake fluid, allowing you to safely apply the brakes up to 15 times after power is removed from the unit. This is much greater than the two to three applications a vacuum brake booster provides once the engine is shut off. An integral pressure switch keeps the unit primed and ready for braking action and all wiring with relay is included.
Installation is a Breeze on Any Vehicle
The compact size of the remote brake booster unit means you can mount it just about anywhere. Measuring just under 7 inches long with a 6-1/4-inch height and 4-1/4-inch width, it will neatly find a home from the engine compartment inner fender area to the frame rails of your vehicle, even all the way in the trunk. All you must do is maintain a mounting location lower than the master cylinder (the pump's inlet works off gravity from the fluid source in the master cylinder) and provide a high-pressure brake line from the electric brake booster pump unit back to the master cylinder to provide the pressure to the brake components. This line can be a length of hard line plumbed between the two, or you can install aninverted flare to AN 3 brake line fittingin the booster outlet and master cylinder inlet ports and use a length ofstainless braided AN 3 brake hosefor easier routing for remote installation locations for the brake booster unit. Wiring is a simple matter of connecting the heavy red wire to your battery and the tan wire to a switched 12-volt source (either directly from the ignition switch or an auxiliary ignition switched spot in your fuse box).
The brake master cylinder unit measures in at 9-1/4 inches long, allowing it to mount in most any location, including compact muscle cars with shock towers where a standard dual reservoir master cylinder and vacuum brake booster combination may not fit. Width and height of the brake master cylinder is quite compact as well at 3-3/8 inches and 4-1/8 inches, respectively. Mounting to your firewall or frame crossmember is made easy with slotted mounting ears that allow the brake master cylinder to be mounted to most any two-bolt pattern without modification. The threaded master cylinder pushrod is adjustable from 5-3/4 inch to 6-3/8 inch in total length and includes a standard brake pedal pin eyelet end fitting. We offer a generous line ofbrake master cylinder pushrod extensions, adapters, and clevis endsto adapt to just about any pedal assembly as well. All fluid ports on the master cylinder are standard 3/8-24 inverted flare that use 3/16-inch brake line. We offer3/16-inch brake linein various lengths/kits as well as in coils to plumb your complete braking system.Alternatively, we offer our electric power brake booster and master cylinder in akitwith brake line, fittings, residual pressure valves, and more to get the job done!
- The master cylinder’s front and rear brake fittings and the pressure line fitting to the electric brake power booster are all 3/8-24 IFF
- The low-pressure feed line fitting is located on the driver's side of the master cylinder when mounted to the firewall and the kit includes a 4-foot section of 3/8 inch hose for it
- The electric brake power booster connects to the rear most 3/8-24 IFF port located on the master cylinder
- The kit’s brake master cylinder may be too big for some street cars and small hot rods, but will work well for muscle cars and classic trucks
- This kit is a disc/disc application; for disc/drumapplications refer to PN 10410562
- May draw up to 14 amps at maximum pressure, so be sure to protect the wiring circuit appropriately
- A proportioning valve will be required, and we suggest an adjustable valve such as PN 91031355 or proportioning valve block PN 91031358
- Residual pressure valves such as 2 psi PN 91031346 will be required if mounting the master cylinder on the frame rail under your floor
- Learn more about proportioning and residual pressure valves with our Toolbox article
Brake System Builder's Tip (Link)
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Q & A
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