E30 boosterless brake bracket (booster delete) manual brakes for swap cars

Only a couple of years ago boosterless brake (manual brakes) setups were considered impractical because the available designs offered by vendors were single master cylinder brackets that protruded the MC into the engine bay. The problem was that one master cylinder cannot provide leg pedal pressure that is soft enough for daily driving, or even comfortable spirited driving, the result is a very firm brake pedal intended for the track. Looked like this: Master cylinders come in various bore sizes, and the general rule is that the smaller the bore the more it will travel and thus will require less leg pressure to operate. To achieve street-able leg pressure you have to run two master cylinders for the brake and one master cylinder for the clutch. At the time the only way to do that was to use Tilton style floor mounted dual master cylinder setups which placed the pedals in an uncomfortable non-oem feeling position closer to the driver seat. The general consensus at the time was that even with two master cylinders the leg pressure would still be non-street-able and there was no way of making an OEM feeling dual master cylinder setup in an E30. This common … Continue reading E30 boosterless brake bracket (booster delete) manual brakes for swap cars