Re: Getting ready for a Treadle Vac Replacement

Posted by PackardV8 On 2015/1/24 8:50:56
Assuming a 1:1 oem pedal ratio then any mc bore > 13/16" will make for a hard pedal. Again, i tried a 86'ish honda civic power unit and MC on my 56 Exec with OEM pedal and oem pedal arraangement. Mounted it to the toe board in the same location as the oem BTV. IT worked but was the pedal effort was more like a manual brake than a power brake.
On a 4500 pound car with speeds capaable of 110 mph ALL DAY LONG the power brake is most needed. For trailer queens then maybe not.

BTW the 86 Civic was a MASTERS brand unit.

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