Compact Electric Brake Power Booster Master Cylinder, Disc/Drum
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Do away with your bulky vacuum boosted brake assist and make the switch to this slick electric assisted brake master cylinder kit. Utilizing remote mounted electric pumps and accumulators to build brake pressure. This stylish and compact alternative master cylinder kit is easily retrofitted into a variey of applications and it can also be frame mounted if you have atleast 5 1/4" of under floor clearance.
Powered by a 12v electric pump and accumulator that can be remote mounted on the frame or in the trunk to keep things neat and clean under the hood.
Features a 1-3/16" bore size master cylinder with slotted mounting holes with spacing that will accept a 3-1/16" to 3-7/16" on center mounting distance, and will accept both 3/8" and 10MM bolts. The reservoir is 10" long by 3" wide by 3" tall.
The master cylinder and reservoir together measure 10" long by 3-1/4" wide by 5-1/4" tall. The pushrod has 3/8"-24 thread and will adjust from 5-3/4" to 6-3/8" from the face of the master cylinder mounting flange.
Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.
Disc/Drum Application. Both fitting sizes are 7/16"-24 IFF.
ApplicationThis electric boost master cylinder may be too big for street cars and hot rods, but will work well for muscle cars.
Brake System Builder's Tip (Link)
The front and rear brake fitting and the pressure line fitting to the pump are all 3/8"-24 IFF.
Low pressure or return line is a 3/8" hose fitting, located on the driver's side of the master cylinder when mounted to the firewall.
The pumps feature 3/8"-24 IFF high pressure line from the master cylinder. A return or low pressure line is a 3/8" hose fitting. A 48" piece of return line is supplied with both kits.
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Q & A
Tim talks about brake booster adjustment.
We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
Tim demonstrates the brake assembly with a Wide 5 drum brake and Speedway's new self-energizing backing plate.
Learn how to install an adjustable proportioning valve block.